CN102970391B - Inquiry of the domain name processing method, server and system - Google Patents

Abstract

Embodiments of the present invention provide a domain name query processing method, server, and system, including: receiving a domain name query request sent by a user terminal; determining the first ISP server with the strongest remaining network processing capability among each ISP server; The IP address of the server is fed back to the user terminal. The DNS server in the embodiment of the present invention first determines the first ISP server with the strongest remaining network processing capability among the current ISP servers after receiving the domain name query request sent by the user terminal, and then feeds back the IP address of the first ISP server to the The user terminal realizes the reasonable utilization of ISP server resources and the reasonable distribution of network load in the network it manages, and also makes the ISP server connected to the user terminal when accessing the website be the ISP with the strongest remaining network processing capacity in the current network server, so as to improve the success rate and access speed of user terminals accessing websites, thereby improving user satisfaction.

Description

Domain name query processing method, server and system

technical field

Embodiments of the present invention relate to communication technologies, and in particular to a domain name query processing method, server and system.

Background technique

Domain Name System (DNS for short) is a service system that provides Internet users with domain name (Domain Name) and Internet Protocol (Internet Protocol, short: IP) address conversion service system.

With the popularization of Internet technology, Internet Service Providers (Internet Service Providers, referred to as: ISP) cannot use a single ISP server to support access from a large number of users on the Internet. ISPs need to deploy multiple ISP servers for their websites to achieve load sharing. . These ISP servers are all mapped to the domain name of the website, that is, the same domain name, but each ISP server uses its own different IP address. The mapping relationship between the domain name and the IP address of each ISP server is recorded on the DNS server, which is called a Resource Record (Resource Record, RR for short). When a user terminal accesses a website through a domain name, the DNS server can select an RR from the database and provide the IP address corresponding to the RR to the user terminal, so that the user terminal can access the corresponding ISP server according to the IP address.

The DNS server in the prior art provides the IP address of the ISP server to the user terminal by polling the RR. When a certain ISP server fails or goes offline, or the load of a certain ISP server is already heavy, the DNS server will still Its IP address is provided to the user terminal, thereby causing the user terminal to fail or have a low access speed to the website.

Contents of the invention

In view of this, the embodiments of the present invention provide a domain name query processing method, server and system, so as to realize reasonable sharing of network loads and improve the success rate and access speed of user terminals accessing websites.

In the first aspect, an embodiment of the present invention provides a domain name query processing method, including: receiving a domain name query request sent by a user terminal; determining the first ISP server with the strongest remaining network processing capability among each ISP server; The IP address of the server is fed back to the user terminal.

In the first possible implementation of the first aspect, before determining the first ISP server with the strongest remaining network processing capability among the ISP servers, it also includes: querying the RR corresponding to each ISP server, and obtaining the RR of each ISP server of remaining network processing capacity.

According to the first aspect or the first possible implementation of the first aspect, in the second possible implementation, before receiving the domain name query request sent by the user terminal, it further includes: querying each ISP server to obtain the domain name query request of each ISP Statistical data of the interface of the server; according to the statistical data of the interface, the remaining network processing capacity of each ISP server is determined.

According to the second possible implementation of the first aspect, in the third possible implementation, it further includes: if the ISP server fails to query the interface statistics data for N consecutive times, determining that the ISP server is offline, and the N is an integer greater than 2.

According to the second possible implementation of the first aspect, in the fourth possible implementation, the querying each ISP server to obtain the interface statistics data of each ISP server includes:

Send a capability query request message of the SNMP protocol to each ISP server;

The capability query response message of the SNMP protocol fed back by each ISP server is received, and each capability query response message includes the interface statistical data of the corresponding ISP server.

According to the second possible implementation manner of the first aspect, in a fifth possible implementation manner, the interface statistical data is at least one type of data in the network interface entry ifEntry in MIB-2.

According to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner, the interface statistical data includes:

The maximum number of packets that can be transmitted ifMtu, the bandwidth ifSpeed, the total number of bytes received ifInOctets, the number of input packets discarded due to errors ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors;

According to the interface statistical data, determining the remaining network processing capacity of each ISP server includes:

Obtain the remaining network processing capacity E according to formula (1):

E＝∑(ifSpeed×T/8-⊿ifInOctets-⊿ifOutOctets–(⊿ifInErrors+⊿ifOutErrors)×ifMtu) (1)

Among them, T is the test period, ⊿ifInOctets is the number of bytes received during the test period, ⊿ifOutOctets is the number of bytes sent during the test period, ⊿ifInErrors is the number of input packets discarded due to errors during the test period, and ⊿ifOutErrors is The number of output packets dropped due to errors during the test period.

According to the fifth possible implementation manner of the first aspect, in the seventh possible implementation manner, the interface statistical data includes:

The maximum number of packets that can be transmitted ifMtu, the bandwidth ifSpeed, the total number of bytes received ifInOctets, the number of input packets discarded due to errors ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors, the number of input packets discarded by the ISP server CPU because it is too late to process ifInDiscards, the number of output packets discarded because the interface is too late to send ifOutDiscards;

According to the interface statistical data, determining the remaining network processing capacity of each ISP server includes:

Obtain the remaining network processing capacity E according to formula (2):

E＝∑(ifSpeed×T/8-⊿ifInOctets-⊿ifOutOctets–(⊿ifInErrors+⊿ifOutErrors+⊿ifInDiscards+⊿ifOutDiscards)×ifMtu) (2)

Among them, T is the test period, ⊿ifInOctets is the number of bytes received during the test period, ⊿ifOutOctets is the number of bytes sent during the test period, ⊿ifInErrors is the number of input packets discarded due to errors during the test period, and ⊿ifOutErrors is The number of output packets discarded due to errors during the test period, ⊿ifInDiscards is the number of input packets discarded by the ISP server CPU because it is too late to process during the test period, and ⊿ifOutDiscards is the number of output packets discarded because the interface is too late to send during the test period.

According to the fifth possible implementation manner of the first aspect, in an eighth possible implementation manner, the interface statistical data includes:

The maximum number of packets that can be transmitted ifMtu, the bandwidth ifSpeed, the total number of bytes received ifInOctets, the number of input packets discarded due to errors ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors, the number of input packets discarded by the ISP server CPU because it was too late to process ifInDiscards, the number of output packets discarded because the interface was too late to send ifOutDiscards, the number of input packets discarded by the ISP server because it received an invalid protocol ifInUnknownProtos;

According to the interface statistical data, determining the remaining network processing capacity of each ISP server includes:

Obtain the remaining network processing capacity E according to formula (3):

E＝∑(ifSpeed×T/8-⊿ifInOctets-⊿ifOutOctets–(⊿ifInErrors+⊿ifOutErrors+⊿ifInDiscards+⊿ifOutDiscards+⊿ifInUnknownProtos)×ifMtu) (3)

Among them, T is the test period, ⊿ifInOctets is the number of bytes received during the test period, ⊿ifOutOctets is the number of bytes sent during the test period, ⊿ifInErrors is the number of input packets discarded due to errors during the test period, and ⊿ifOutErrors is The number of output packets discarded due to errors during the test period, ⊿ifInDiscards is the number of input packets discarded by the ISP server CPU because it is too late to process during the test period, ⊿ifOutDiscards is the number of output packets discarded because the interface is too late to send during the test period, ⊿ifInUnknownProtos is the number of test The number of incoming packets discarded by the ISP server during the period due to receipt of an invalid protocol.

According to the fifth possible implementation of the first aspect, in the ninth possible implementation, the interface statistical data includes:

The maximum number of bytes of data packets that can be transmitted ifMtu, the bandwidth ifSpeed, the total number of bytes received ifInOctets, the total number of bytes sent ifOutOctets;

According to the interface statistical data, determining the remaining network processing capacity of each ISP server includes:

Obtain the remaining network processing capacity E according to formula (4):

E＝∑(ifSpeed×T/8-⊿ifInOctets-⊿ifOutOctets) (4)

Among them, T is the test period, ⊿ifInOctets is the number of bytes received in the test period, and ⊿ifOutOctets is the number of bytes sent in the test period.

According to the fifth possible implementation manner of the first aspect, in the tenth possible implementation manner, the interface statistical data includes:

The maximum number of data packets that can be transmitted ifMtu, the bandwidth ifSpeed, the number of unicast packets received and delivered to the upper layer ifInUcastPkts, the number of multicast packets received and delivered to the upper layer ifInNUcastPkts, the number of unicast packets received and sent from the upper layer ifOutUcastPkts , the number of multicast packets received and sent out from the upper layer ifOutNUcastPkts;

According to the interface statistical data, determining the remaining network processing capacity of each ISP server includes:

Obtain the remaining network processing capacity E according to formula (5):

E＝∑(ifSpeed×T/8–(⊿ifInUcastPkts+⊿ifInNUcastPkts)×ifMtu–(⊿⊿ifOutUcastPkts+⊿ifOutNUcastPkts)×ifMtu) (5)

Among them, T is the test period, ⊿ifInUcastPkts is the number of unicast packets received and delivered to the upper layer during the test period, ⊿ifInNUcastPkts is the number of multicast packets received and delivered to the upper layer during the test period, ⊿ifOutUcastPkts is the number of multicast packets received and delivered to the upper layer during the test period, ⊿ifOutUcastPkts is the number of The number of unicast packets received and sent out from the upper layer, ⊿ifOutNUcastPkts is the number of multicast packets received and sent out from the upper layer during the test period.

In a second aspect, an embodiment of the present invention provides a domain name query processing method, including:

Receive the capability query request message of the SNMP protocol sent by the DNS server;

Feedback a capability query response message of the SNMP protocol to the DNS server, where the capability query response message includes interface statistics data.

In a first possible implementation manner of the second aspect, the interface statistical data is at least one type of data in the network interface entry ifEntry in MIB-2.

According to the first possible implementation of the second aspect, in the second possible implementation, the interface statistical data includes:

The maximum number of packets that can be transmitted ifMtu, the bandwidth ifSpeed, the total number of bytes received ifInOctets, the number of input packets discarded due to errors ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors.

According to the first possible implementation of the second aspect, in a third possible implementation, the interface statistical data includes:

The maximum number of packets that can be transmitted ifMtu, the bandwidth ifSpeed, the total number of bytes received ifInOctets, the number of input packets discarded due to errors ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors, the number of input packets ifInDiscards discarded by the ISP server CPU because it is too late to process, and the number of output packets ifOutDiscards discarded because the interface is too late to send.

According to the first possible implementation of the second aspect, in a fourth possible implementation, the interface statistical data includes:

The maximum number of packets that can be transmitted ifMtu, the bandwidth ifSpeed, the total number of bytes received ifInOctets, the number of input packets discarded due to errors ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors, the number of input packets discarded by the ISP server CPU because it was too late to process ifInDiscards, the number of output packets discarded because the interface was too late to send ifOutDiscards, the number of input packets discarded by the ISP server because it received an invalid protocol ifInUnknownProtos.

According to the first possible implementation of the second aspect, in a fifth possible implementation, the interface statistical data includes:

The maximum number of bytes of data packets that can be transmitted ifMtu, the bandwidth ifSpeed, the total number of received bytes ifInOctets, and the total number of sent bytes ifOutOctets.

According to the first possible implementation of the second aspect, in a sixth possible implementation, the interface statistical data includes:

The maximum number of data packets that can be transmitted ifMtu, the bandwidth ifSpeed, the number of unicast packets received and delivered to the upper layer ifInUcastPkts, the number of multicast packets received and delivered to the upper layer ifInNUcastPkts, the number of unicast packets received and sent from the upper layer ifOutUcastPkts , the number of multicast packets received and sent from the upper layer ifOutNUcastPkts.

In a third aspect, an embodiment of the present invention provides a DNS server, including:

The receiving module is used to receive the domain name query request sent by the user terminal; the selection module is used to determine the first ISP server with the strongest remaining network processing capability among the ISP servers; the feedback module is used to send the IP address of the first ISP server The address is fed back to the user terminal.

In a first possible implementation manner of the third aspect, the DNS server further includes: a query module, configured to query the RRs corresponding to each ISP server, and obtain the remaining network processing capacity of each ISP server.

According to the third aspect or the first possible implementation of the third aspect, in the second possible implementation, it also includes: a statistical module, configured to query each ISP server to obtain the interface statistical data of each ISP server, according to The interface statistics data determine the remaining network processing capacity of each ISP server.

According to the second possible implementation of the third aspect, in the third possible implementation, it further includes: a judging module, configured to determine that the ISP server fails to query the interface statistics data from the ISP server for N consecutive times. Offline, the N is an integer greater than 2.

According to the second possible implementation of the third aspect, in the fourth possible implementation, the statistical module includes: a sending unit, configured to send a capability query request message of the SNMP protocol to each ISP server; The unit is configured to receive the capability query response message of the SNMP protocol fed back by each ISP server, and each capability query response message includes the interface statistical data of the corresponding ISP server.

According to the second possible implementation manner of the third aspect, in a fifth possible implementation manner, the interface statistical data is at least one type of data in the network interface entry ifEntry in the MIB-2.

According to the fifth possible implementation of the third aspect, in the sixth possible implementation, the interface statistics include: the maximum number of transmittable data packet bytes ifMtu, bandwidth ifSpeed, received bytes Total ifInOctets, number of input packets discarded due to errors ifInErrors, total number of bytes sent ifOutOctets, number of output packets discarded due to errors ifOutErrors;

The statistical module is specifically used for:

Obtain the remaining network processing capacity E according to formula (1):

E＝∑(ifSpeed×T/8-⊿ifInOctets-⊿ifOutOctets–(⊿ifInErrors+⊿ifOutErrors)×ifMtu) (1)

Among them, T is the test period, ⊿ifInOctets is the number of bytes received during the test period, ⊿ifOutOctets is the number of bytes sent during the test period, ⊿ifInErrors is the number of input packets discarded due to errors during the test period, and ⊿ifOutErrors is The number of output packets dropped due to errors during the test period.

According to the fifth possible implementation of the third aspect, in the seventh possible implementation, the interface statistical data collected by the statistical module includes: the maximum number of transmittable data packet bytes ifMtu, the bandwidth ifSpeed, The total number of bytes received ifInOctets, the number of input packets discarded due to errors ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors, the number of input packets discarded by the ISP server CPU because it was too late to process ifInDiscards , the number of output packets discarded if the interface is too late to send ifOutDiscards;

The statistical module is specifically used for:

Obtain the remaining network processing capacity E according to formula (2):

E＝∑(ifSpeed×T/8-⊿ifInOctets-⊿ifOutOctets–(⊿ifInErrors+⊿ifOutErrors+⊿ifInDiscards+⊿ifOutDiscards)×ifMtu) (2)

Among them, T is the test period, ⊿ifInOctets is the number of bytes received during the test period, ⊿ifOutOctets is the number of bytes sent during the test period, ⊿ifInErrors is the number of input packets discarded due to errors during the test period, and ⊿ifOutErrors is The number of output packets discarded due to errors during the test period, ⊿ifInDiscards is the number of input packets discarded by the ISP server CPU because it is too late to process during the test period, and ⊿ifOutDiscards is the number of output packets discarded because the interface is too late to send during the test period.

According to the fifth possible implementation of the third aspect, in the eighth possible implementation, the interface statistical data collected by the statistical module includes: the maximum number of transmittable data packet bytes ifMtu, the bandwidth ifSpeed, the The total number of bytes received ifInOctets, the number of input packets discarded due to errors ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors, the number of input packets discarded by the ISP server CPU because it was too late to process ifInDiscards , the number of output packets discarded by the interface too late to send ifOutDiscards, the number of input packets discarded by the ISP server due to receiving invalid protocols ifInUnknownProtos;

The statistical module is specifically used for:

Obtain the remaining network processing capacity E according to formula (3):

E＝∑(ifSpeed×T/8-⊿ifInOctets-⊿ifOutOctets–(⊿ifInErrors+⊿ifOutErrors+⊿ifInDiscards+⊿ifOutDiscards+⊿ifInUnknownProtos)×ifMtu) (3)

Among them, T is the test period, ⊿ifInOctets is the number of bytes received during the test period, ⊿ifOutOctets is the number of bytes sent during the test period, ⊿ifInErrors is the number of input packets discarded due to errors during the test period, and ⊿ifOutErrors is The number of output packets discarded due to errors during the test period, ⊿ifInDiscards is the number of input packets discarded by the ISP server CPU because it is too late to process during the test period, ⊿ifOutDiscards is the number of output packets discarded because the interface is too late to send during the test period, ⊿ifInUnknownProtos is the number of test The number of incoming packets discarded by the ISP server during the period due to receipt of an invalid protocol.

According to the fifth possible implementation of the third aspect, in the ninth possible implementation, the interface statistical data collected by the statistical module includes: the maximum number of transmittable data packet bytes ifMtu, the bandwidth ifSpeed, The total number of bytes received ifInOctets, the total number of bytes sent ifOutOctets;

The statistical module is specifically used for:

Obtain the remaining network processing capacity E according to formula (4):

E＝∑(ifSpeed×T/8-⊿ifInOctets-⊿ifOutOctets) (4)

Among them, T is the test period, ⊿ifInOctets is the number of bytes received in the test period, and ⊿ifOutOctets is the number of bytes sent in the test period.

According to the fifth possible implementation of the third aspect, in the tenth possible implementation, the interface statistical data collected by the statistical module includes: the maximum number of transmittable data packet bytes ifMtu, bandwidth ifSpeed, received The number of unicast packets ifInUcastPkts delivered to the upper layer, the number of multicast packets received and delivered to the upper layer ifInNUcastPkts, the number of unicast packets received and sent from the upper layer ifOutUcastPkts, the number of multicast packets received and sent from the upper layer ifOutNUcastPkts;

The statistical module is specifically used for:

Obtain the remaining network processing capacity E according to formula (5):

E＝∑(ifSpeed×T/8–(⊿ifInUcastPkts+⊿ifInNUcastPkts)×ifMtu–(⊿ifOutUcastPkts+⊿ifOutNUcastPkts)×ifMtu) (5)

Among them, T is the test period, ⊿ifInUcastPkts is the number of unicast packets received and delivered to the upper layer during the test period, ⊿ifInNUcastPkts is the number of multicast packets received and delivered to the upper layer during the test period, ⊿ifOutUcastPkts is the number of multicast packets received and delivered to the upper layer during the test period, ⊿ifOutUcastPkts is the number of The number of unicast packets received and sent out from the upper layer, ⊿ifOutNUcastPkts is the number of multicast packets received and sent out from the upper layer during the test period.

In a fourth aspect, an embodiment of the present invention provides an ISP server, including:

The receiving module is used to receive the capability query request message of the SNMP protocol sent by the DNS server; the feedback module is used to feed back the capability query response message of the SNMP protocol to the DNS server, and the capability query response message includes interface statistics data.

In a first possible implementation manner of the fourth aspect, the interface statistical data is at least one type of data in the network interface entry ifEntry in MIB-2.

According to the first possible implementation of the fourth aspect, in the second possible implementation, the interface statistics include: the maximum number of transmittable data packet bytes ifMtu, bandwidth ifSpeed, received bytes Total ifInOctets, number of input packets dropped due to errors ifInErrors, total number of bytes sent ifOutOctets, number of output packets dropped due to errors ifOutErrors.

According to the first possible implementation of the fourth aspect, in a third possible implementation, the interface statistical data includes:

The maximum number of packets that can be transmitted ifMtu, the bandwidth ifSpeed, the total number of bytes received ifInOctets, the number of input packets discarded due to errors ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors, the number of input packets ifInDiscards discarded by the ISP server CPU because it is too late to process, and the number of output packets ifOutDiscards discarded because the interface is too late to send.

According to the first possible implementation of the fourth aspect, in a fourth possible implementation, the interface statistical data includes:

The maximum number of packets that can be transmitted ifMtu, the bandwidth ifSpeed, the total number of bytes received ifInOctets, the number of input packets discarded due to errors ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors, the number of input packets discarded by the ISP server CPU because it was too late to process ifInDiscards, the number of output packets discarded because the interface was too late to send ifOutDiscards, the number of input packets discarded by the ISP server because it received an invalid protocol ifInUnknownProtos.

According to the first possible implementation of the fourth aspect, in a fifth possible implementation, the interface statistical data includes:

The maximum number of bytes of data packets that can be transmitted ifMtu, the bandwidth ifSpeed, the total number of received bytes ifInOctets, and the total number of sent bytes ifOutOctets.

According to the first possible implementation of the fourth aspect, in a sixth possible implementation, the interface statistical data includes:

The maximum number of data packets that can be transmitted ifMtu, the bandwidth ifSpeed, the number of unicast packets received and delivered to the upper layer ifInUcastPkts, the number of multicast packets received and delivered to the upper layer ifInNUcastPkts, the number of unicast packets received and sent from the upper layer ifOutUcastPkts , the number of multicast packets received and sent from the upper layer ifOutNUcastPkts.

In a fifth aspect, an embodiment of the present invention provides a system, including the DNS server in any possible implementation manner of the third aspect and at least one ISP server in any possible implementation manner of the fourth aspect.

The domain name query processing method, server, and system of the embodiments of the present invention obtain the remaining network processing capacity of each ISP server through the interaction between the DNS server and the ISP server, and after receiving the domain name query request sent by the user terminal, first determine the domain name query request at the current moment. Among the remaining ISP servers, the first ISP server with the strongest network processing capability will feed back the IP address of the first ISP server to the user terminal, so as to realize the rational use of resources and network load of each ISP server in the network managed by the DNS server. The reasonable distribution of the network also makes the ISP server that the user terminal connects to when accessing the website is always the ISP server with the strongest remaining network processing capacity in the current network, thereby improving the success rate and access speed of the user terminal accessing the website, so that the user can get the most Excellent user experience, thereby improving user satisfaction.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the flowchart of an embodiment of the domain name query processing method of the present invention;

Fig. 2 is a flowchart of another embodiment of the domain name query processing method of the present invention;

Fig. 3 is a flowchart of another embodiment of the domain name query processing method of the present invention;

Fig. 4 is a signaling flowchart of another embodiment of the domain name query processing method of the present invention;

FIG. 5 is a schematic structural diagram of Embodiment 1 of a DNS server of the present invention;

FIG. 6 is a schematic structural diagram of another embodiment of the DNS server of the present invention;

FIG. 7 is a schematic structural diagram of another embodiment of the DNS server of the present invention;

FIG. 8 is a schematic structural diagram of an embodiment of an ISP server of the present invention;

FIG. 9 is a schematic structural diagram of an embodiment of the domain name processing system of the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The user terminal involved in this application refers to a device that can provide users with data connection with the Internet, which can be a wireless terminal or a wired terminal, and the specific form can be a desktop computer, a notebook computer, a tablet computer, etc.

Fig. 1 is the flow chart of an embodiment of the domain name query processing method of the present invention, and the executive subject of this embodiment is DNS server, as shown in Fig. 1, the method of this embodiment may include:

Step 101. Receive a domain name query request sent by a user terminal.

A specific scenario may be that, when a user accesses a specific website through a user terminal, the user terminal may send a domain name query request of the website to the DNS server, and at this time, the DNS server receives the domain name query request.

Step 102, determining the first ISP server with the strongest remaining network processing capability among the ISP servers.

Specifically, during the operation of the DNS server, no matter whether it receives the message sent by the user terminal, the DNS server can regularly collect interface statistical data, such as bandwidth ifSpeed, the total number of bytes received by the interface ifInOctets, the total number of bytes sent by the interface ifOutOctets, etc., using specific algorithms, for example, the remaining network processing capacity E of the ISP server can be set as: the total number of bytes that can be transmitted by the interface in a fixed period minus Get the total number of bytes received and sent by the interface within the fixed period to obtain the remaining network processing capacity E of each ISP server. The remaining network processing capacity E of an ISP server reflects the amount of data that the ISP server can receive, process and send at the current moment and the speed of response. If the value of the remaining network processing capacity E of an ISP server is greater, It shows that the larger the amount of data that the ISP server can receive, process and send, the faster the response speed, that is to say, the higher the success rate of connecting the user terminal to it and the faster the response speed of the website felt by the user terminal.

Therefore, when receiving the domain name query request sent by the user terminal, the DNS server may use the ISP server with the largest remaining network processing capacity E at this moment as the first ISP server with the strongest remaining network processing capacity.

Step 103, feeding back the IP address of the first ISP server to the user terminal.

Specifically, the DNS server can obtain the IP address of the first ISP server by querying the RR, and feed back the IP address to the user terminal.

In this embodiment, after receiving the domain name query request sent by the user terminal, the DNS server first determines the first ISP server with the strongest remaining network processing capability among the ISP servers at the current moment, and then feeds back the IP address of the first ISP server For the user terminal, realize the reasonable utilization of the resources of each ISP server in the network managed by the DNS server and the reasonable distribution of network load, and also make the ISP server connected to the user terminal when accessing the website always have the remaining network processing capacity in the current network The most powerful ISP server, so as to improve the success rate and access speed of user terminals to access websites, so that users can obtain the best user experience, thereby improving user satisfaction.

The technical solution of the method embodiment shown in FIG. 1 will be described in detail below using several specific embodiments.

Fig. 2 is the flow chart of another embodiment of the domain name query processing method of the present invention, and the executor of this embodiment is DNS server, as shown in Fig. 2, the method of this embodiment may include:

S201. Query each ISP server to obtain interface statistical data of each ISP server.

Specifically, the DNS server can periodically send a capability query request message of the SNMP protocol to each ISP server, and receive a capability query response message of the SNMP protocol fed back by each ISP server, and each capability query response message includes the interface of the corresponding ISP server. Statistical data.

The interface statistical data may be at least one type of data in the network interface entry ifEntry in Management Information Base version 2 (MIB-2 for short).

MIB-2 is a branch of the management object database under the Internet device management standard protocol SNMP, and its branch node is 1.3.6.1.2.1, (ie iso.org.dod.internet.mgmt.mib-2). MIB-2 defines the management information of the Transmission Control Protocol/Internet Protocol (Transfer Control Protocol/Internet Protocol, TCP/IP for short), which includes the network interface item ifEntry.

The interface statistical data is, for example, in the network interface item ifEntry: the maximum number of data packet bytes ifMtu that can be transmitted, the bandwidth ifSpeed (the unit is bit per second), the total number of bytes received ifInOctets, the input discarded due to errors The number of packets ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors.

In addition, if the ISP server fails to query the interface statistical data for three consecutive times, it is determined that the ISP server is offline, and the value of the remaining network processing capacity E of the ISP server can be set to 0. Here, using three consecutive failures to query the ISP server for interface statistical data as a basis for judging that the ISP server is offline is a preferred solution, and the present invention is not limited thereto.

S202. Determine the remaining network processing capacity of each ISP server according to the interface statistical data.

Specifically, the DNS server uses a suitable algorithm to analyze the remaining network processing capacity of each ISP server, and this embodiment provides the following methods:

Mode 1: Obtain the remaining network processing capacity E according to formula (1):

E＝∑(ifSpeed×T/8-⊿ifInOctets-⊿ifOutOctets–(⊿ifInErrors+⊿ifOutErrors)×ifMtu) (1)

Among them, T is the test period, ⊿ifInOctets is the number of bytes received during the test period, ⊿ifOutOctets is the number of bytes sent during the test period, ⊿ifInErrors is the number of input packets discarded due to errors during the test period, and ⊿ifOutErrors is The number of output packets dropped due to errors during the test period.

Mode 2: Obtain the remaining network processing capacity E according to formula (2):

E＝∑(ifSpeed×T/8-⊿ifInOctets-⊿ifOutOctets–(⊿ifInErrors+⊿ifOutErrors+⊿ifInDiscards+⊿ifOutDiscards)×ifMtu) (2)

Among them, T is the test period, ⊿ifInOctets is the number of bytes received during the test period, ⊿ifOutOctets is the number of bytes sent during the test period, ⊿ifInErrors is the number of input packets discarded due to errors during the test period, and ⊿ifOutErrors is The number of output packets discarded due to errors during the test period, ⊿ifInDiscards is the number of input packets discarded by the ISP server CPU because it is too late to process during the test period, and ⊿ifOutDiscards is the number of output packets discarded because the interface is too late to send during the test period.

Method 2 is based on method 1, and also considers the number of input packets discarded by the CPU of the ISP server and the number of output packets discarded by the interface because it is too late to send. Correspondingly, in step S201, the interface statistical data may include: the maximum data packet byte number ifMtu that can be transmitted, the bandwidth ifSpeed (the unit is bit per second), the total number of bytes received ifInOctets, the input discarded because of an error The number of packets ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors, the number of input packets discarded by the ISP server CPU because it was too late to process ifInDiscards, the number of output packets discarded because the interface was too late to send ifOutDiscards.

Mode 3: Obtain the remaining network processing capacity E according to formula (3):

E＝∑(ifSpeed×T/8-⊿ifInOctets-⊿ifOutOctets–(⊿ifInErrors+⊿ifOutErrors+⊿ifInDiscards+⊿ifOutDiscards+⊿ifInUnknownProtos)×ifMtu) (3)

Among them, T is the test period, ⊿ifInOctets is the number of bytes received during the test period, ⊿ifOutOctets is the number of bytes sent during the test period, ⊿ifInErrors is the number of input packets discarded due to errors during the test period, and ⊿ifOutErrors is The number of output packets discarded due to errors during the test period, ⊿ifInDiscards is the number of input packets discarded by the ISP server CPU because it is too late to process during the test period, ⊿ifOutDiscards is the number of output packets discarded because the interface is too late to send during the test period, ⊿ifInUnknownProtos is the number of test The number of incoming packets discarded by the ISP server during the period due to receipt of an invalid protocol.

The third method is based on the second method, and also considers the calculation method obtained by the number of input packets discarded by the ISP server due to receiving an invalid protocol. Correspondingly, in step S201, the interface statistical data may include: the maximum data packet byte number ifMtu that can be transmitted, the bandwidth ifSpeed (the unit is bit per second), the total number of bytes received ifInOctets, the input discarded because of an error Number of packets ifInErrors, total number of bytes sent ifOutOctets, number of output packets discarded due to errors ifOutErrors, number of input packets discarded by the ISP server CPU because it was too late to process ifInDiscards, number of output packets discarded by the interface too late to send ifOutDiscards, ISP server Number of input packets ifInUnknownProtos dropped due to reception of an invalid protocol.

Mode 4: Obtain the remaining network processing capacity E according to formula (4):

E＝∑(ifSpeed×T/8-⊿ifInOctets-⊿ifOutOctets) (4)

Among them, T is the test period, ⊿ifInOctets is the number of bytes received in the test period, and ⊿ifOutOctets is the number of bytes sent in the test period.

Method 4 is based on method 1, ignoring the number of discarded packets for any reason and taking all received and sent bytes as valid bytes, and the calculation method is obtained. Correspondingly, in step S201, the interface statistical data can include: the maximum number of data packet bytes ifMtu that can be transmitted, the bandwidth ifSpeed (unit is bit per second), the total number of bytes received ifInOctets, the total number of bytes sent ifOutOctets .

Mode 5: Obtain the remaining network processing capacity E according to formula (5):

E＝∑(ifSpeed×T/8–(⊿ifInUcastPkts+⊿ifInNUcastPkts)×ifMtu–(⊿⊿ifOutUcastPkts+⊿ifOutNUcastPkts)×ifMtu) (5)

Among them, T is the test period, ⊿ifInUcastPkts is the number of unicast packets received and delivered to the upper layer during the test period, ⊿ifInNUcastPkts is the number of multicast packets received and delivered to the upper layer during the test period, ⊿ifOutUcastPkts is the number of multicast packets received and delivered to the upper layer during the test period, ⊿ifOutUcastPkts is the number of The number of unicast packets received and sent out from the upper layer, ⊿ifOutNUcastPkts is the number of multicast packets received and sent out from the upper layer during the test period.

Method 5 is different from the above-mentioned method 1 to method 4 in terms of algorithm ideas, and uses the number of packets processed by the upper layer to indirectly analyze the remaining network processing capacity E. Correspondingly, in step S201, the interface statistical data may include: the maximum data packet byte number ifMtu that can be transmitted, the bandwidth ifSpeed (the unit is bit per second), the number of unicast packets received and delivered to the upper layer ifInUcastPkts, received and delivered The number of multicast packets to the upper layer ifInNUcastPkts, the number of unicast packets received and sent from the upper layer ifOutUcastPkts, the number of multicast packets received and sent from the upper layer ifOutNUcastPkts.

In each of the above methods, since the statistical data is regularly updated, the obtained value of the remaining network processing capacity E of each ISP server is also regularly updated. This value changes with the actual operation status of each ISP server, which can be considered real-time Reflects its remaining network processing capacity. The DNS server can also associate the remaining network processing capacity E of each ISP server with the RR, that is, periodically refresh the RR, so that the DNS server can directly obtain the remaining network processing capacity of each ISP server and its IP address by querying the RR.

S203. Receive a domain name query request sent by the user terminal.

S204. Determine the first ISP server with the strongest remaining network processing capability among the ISP servers.

Specifically, query the RR corresponding to each ISP server to obtain the remaining network processing capacity of each ISP server, and the ISP server with the largest value of the remaining network processing capacity E can be used as the first ISP server with the strongest remaining network processing capacity, and can Obtain the IP address of the first ISP server from the RR.

S205. Feed back the IP address of the first ISP server to the user terminal.

In this embodiment, the interface statistical data of each ISP server is obtained by regularly querying each ISP server, and according to the interface statistical data, the remaining network processing capacity of each ISP server is analyzed in real time, and the domain name query request sent by the user terminal is received. When solving, the ISP server with the strongest remaining network processing capacity in the network at the current moment can be provided to the user terminal, so as to realize the reasonable utilization of the resources of each ISP server in the network managed by the DNS server and the reasonable distribution of network load, and make The success rate of the connection is guaranteed when the user visits the website.

Fig. 3 is the flow chart of another embodiment of the domain name query processing method of the present invention, the executive body of this embodiment is an ISP server, as shown in Fig. 3, the method of this embodiment may include:

S301. Receive a capability query request message of the SNMP protocol sent by the DNS server.

S302. Feed back a capability query response message of the SNMP protocol to the DNS server, where the capability query response message includes interface statistics data.

Specifically, the interface statistical data may be at least one type of data in the network interface entry ifEntry in MIB-2.

In this embodiment, corresponding to step S201 in the technical solution of the embodiment corresponding to FIG. 2, by receiving the capability query request message of the SNMP protocol sent by the DNS server and feeding back the capability query response message of the SNMP protocol to the DNS server, In addition, the method of including the interface statistical data in the capability query response message realizes providing the interface statistical data of the ISP server to the DNS server.

During the specific implementation of this embodiment, optionally, corresponding to the first mode in the embodiment shown in FIG. ), the total number of bytes received ifInOctets, the number of input packets discarded due to errors ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors.

During the specific implementation of this embodiment, optionally, corresponding to the second mode in the embodiment shown in Fig. 2, the interface statistical data may include: the maximum number of data packet bytes ifMtu that can be transmitted, the bandwidth ifSpeed (unit is bit per second ), the total number of bytes received ifInOctets, the number of input packets discarded due to errors ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors, the number of input packets discarded by the ISP server CPU because it was too late to process The number of packets ifInDiscards, the number of output packets discarded if the interface is too late to send ifOutDiscards.

During the specific implementation of this embodiment, optionally, corresponding to the mode three in the embodiment shown in FIG. ), the total number of bytes received ifInOctets, the number of input packets discarded due to errors ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors, the number of input packets discarded by the ISP server CPU because it was too late to process The number of packets ifInDiscards, the number of output packets discarded by the interface too late to send ifOutDiscards, the number of input packets discarded by the ISP server because it received an invalid protocol ifInUnknownProtos.

During the specific implementation of this embodiment, optionally, corresponding to the fourth mode in the embodiment shown in FIG. ), the total number of bytes received ifInOctets, the total number of bytes sent ifOutOctets.

During the specific implementation of this embodiment, optionally, corresponding to the mode five in the embodiment shown in FIG. ), the number of unicast packets received and delivered to the upper layer ifInUcastPkts, the number of multicast packets received and delivered to the upper layer ifInNUcastPkts, the number of unicast packets received and sent from the upper layer ifOutUcastPkts, the number of multicast packets received and sent from the upper layer ifOutNUcastPkts.

Fig. 4 is the signaling flowchart of another embodiment of the domain name query processing method of the present invention. As shown in Fig. 4, the number of ISP servers is 2, and each ISP server (ISP server 1 to ISP server 2) interacts with each other through the DNS server The process of the domain name query processing method provided by this embodiment is described in detail, and the method of this embodiment may include:

S401. The DNS server sends a capability query request message of the SNMP protocol to the ISP server 1 at regular intervals.

S402. The DNS server sends a capability query request message of the SNMP protocol to the ISP server 2 at regular intervals.

In actual use, there is no restriction on the order of execution of step S401 and step S402, and these two steps may be executed simultaneously or in any order.

S403. The ISP server 1 feeds back a capability query response message of the SNMP protocol to the DNS server, and the capability query response message includes interface statistics data.

S404. The ISP server 2 feeds back a capability query response message of the SNMP protocol to the DNS server, and the capability query response message includes interface statistics data.

In actual use, there is no sequence in the execution of step S404 and step S404, and the two steps can be executed at the same time or in any order.

S405. The DNS server determines the remaining network processing capacity of the ISP server 1 according to the interface statistical data.

S406. The DNS server determines the remaining network processing capability of the ISP server 2 according to the interface statistical data.

In actual use, there is no sequence in the execution of step S405 and step S406, and the two steps can be executed at the same time or in any order. Moreover, in step S405 and step S406, the manner of determining the network processing capability E of each ISP server may use any one of manners 1 to 5 in the embodiment shown in FIG. 2 . It should be noted that, here The calculation of the remaining network processing capacity of each ISP server needs to use the same method.

S407. The terminal sends a domain name query request to the DNS server.

S408. The DNS server determines the first ISP server with the strongest remaining network processing capability among the ISP servers.

S409. Feed back the IP address of the first ISP server to the user terminal.

S410. Access the ISP server according to the received IP address.

If the first ISP server is ISP server 1, the terminal accesses ISP server 1.

In this embodiment, through the information interaction between the DNS server and each ISP server, that is, the DNS server queries each ISP server for interface statistics data respectively, and each ISP server feeds back interface statistics data to the DNS server respectively, so that the DNS server can obtain the interface statistics data of each ISP server. The remaining network processing capacity, so that when the user terminal accesses the website through the domain name, the IP address of the ISP server with the strongest remaining network processing capacity can be fed back to the user terminal, thereby improving the success rate and access speed of the user terminal accessing the website.

The number of ISP servers in the foregoing embodiment is 2, and in actual use, the number of ISP servers is not limited, and can be any integer greater than 1, and the order in which the DNS server sends query request messages to each ISP server, each ISP server The order in which the query response messages are fed back and the order in which the DNS server determines the remaining network processing capabilities of each ISP server are in no particular order.

FIG. 5 is a schematic structural diagram of an embodiment of the DNS server of the present invention. As shown in FIG. 5, the device of this embodiment may include: a receiving module 11, a selection module 12, and a feedback module 13, wherein the receiving module 11 is used to receive user terminal For the domain name query request sent, the selection module 12 is used to determine the first ISP server with the strongest remaining network processing capability among the ISP servers, and the feedback module 13 is used to feed back the IP address of the first ISP server to the user terminal.

The device of this embodiment can be used to implement the technical solution of the method embodiment shown in FIG. 1 , and its implementation principle and technical effect are similar, and will not be repeated here.

Fig. 6 is a schematic structural diagram of another embodiment of the DNS server of the present invention. As shown in Fig. 6, the device of this embodiment may further include: a query module 14 on the basis of the structure of the device shown in Fig. 4 , the query Module 14 is used to query the RR corresponding to each ISP server, and obtain the remaining network processing capacity of each ISP server.

The device of this embodiment can be used to implement the technical solution of the method embodiment shown in FIG. 1 , and its implementation principle and technical effect are similar, and will not be repeated here.

Fig. 7 is a schematic structural diagram of another embodiment of the DNS server of the present invention. As shown in Fig. 7, the device of this embodiment may further include:

Statistical module 15 and judgment module 16, statistical module 15 is used to inquire about the interface statistical data that obtains each ISP server to each ISP server, according to said interface statistical data, determine the remaining network processing capacity of each ISP server; If querying the interface statistical data from the ISP server fails, it is determined that the ISP server is offline.

Further, the statistical module 15 may include a sending unit 151 , a receiving unit 152 and a statistical processing unit 153 . The sending unit 151 is used to send the capability query request message of the SNMP protocol to each ISP server; the receiving unit 152 is used to receive the capability query response message of the SNMP protocol fed back by each ISP server, and each capability query response message contains the corresponding ISP Interface statistical data of the server; the statistical processing unit 153 is configured to determine the remaining network processing capacity of each ISP server according to the interface statistical data.

Further, the interface statistical data acquired by the statistics module 15 may be at least one type of data in the network interface entry ifEntry in MIB-2.

Further optionally, the interface statistical data obtained by the statistics module 15 includes: the maximum number of bytes of data packets ifMtu that can be transmitted, the bandwidth ifSpeed (unit is bit per second), the total number of bytes ifInOctets received, discarded due to errors The number of input packets ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors;

The statistics module 15 is specifically used to obtain the remaining network processing capacity E according to the formula (1):

E＝∑(ifSpeed×T/8-⊿ifInOctets-⊿ifOutOctets–(⊿ifInErrors+⊿ifOutErrors)×ifMtu) (1)

Among them, T is the test period, ⊿ifInOctets is the number of bytes received during the test period, ⊿ifOutOctets is the number of bytes sent during the test period, ⊿ifInErrors is the number of input packets discarded due to errors during the test period, and ⊿ifOutErrors is The number of output packets dropped due to errors during the test period.

Further optionally, the interface statistical data obtained by the statistical module 15 includes:

The maximum number of bytes of data packets that can be transmitted ifMtu, the bandwidth ifSpeed (unit is bit per second), the total number of received bytes ifInOctets, the number of input packets discarded due to errors ifInErrors, the total number of sent bytes ifOutOctets, due to occurrence The number of output packets discarded due to errors ifOutErrors, the number of input packets ifInDiscards discarded by the ISP server CPU because it is too late to process, the number of output packets discarded if the interface is too late to send ifOutDiscards;

The statistics module 15 is specifically used to obtain the remaining network processing capacity E according to the formula (2):

E＝∑(ifSpeed×T/8-⊿ifInOctets-⊿ifOutOctets–(⊿ifInErrors+⊿ifOutErrors+⊿ifInDiscards+⊿ifOutDiscards)×ifMtu) (2)

Among them, T is the test period, ⊿ifInOctets is the number of bytes received during the test period, ⊿ifOutOctets is the number of bytes sent during the test period, ⊿ifInErrors is the number of input packets discarded due to errors during the test period, and ⊿ifOutErrors is The number of output packets discarded due to errors during the test period, ⊿ifInDiscards is the number of input packets discarded by the ISP server CPU because it is too late to process during the test period, and ⊿ifOutDiscards is the number of output packets discarded because the interface is too late to send during the test period.

Further optionally, the interface statistical data obtained by the statistical module 15 includes:

The maximum number of bytes of data packets that can be transmitted ifMtu, the bandwidth ifSpeed (unit is bit per second), the total number of received bytes ifInOctets, the number of input packets discarded due to errors ifInErrors, the total number of sent bytes ifOutOctets, due to occurrence The number of output packets discarded due to errors ifOutErrors, the number of input packets discarded by the ISP server CPU because it was too late to process ifInDiscards, the number of output packets discarded because the interface was too late to send ifOutDiscards, the number of input packets discarded by the ISP server because it received an invalid protocol ifInUnknownProtos;

The statistical module 15 is specifically used to obtain the remaining network processing capacity E according to formula (3):

E＝∑(ifSpeed×T/8-⊿ifInOctets-⊿ifOutOctets–(⊿ifInErrors+⊿ifOutErrors+⊿ifInDiscards+⊿ifOutDiscards+⊿ifInUnknownProtos)×ifMtu) (3)

Among them, T is the test period, ⊿ifInOctets is the number of bytes received during the test period, ⊿ifOutOctets is the number of bytes sent during the test period, ⊿ifInErrors is the number of input packets discarded due to errors during the test period, and ⊿ifOutErrors is The number of output packets discarded due to errors during the test period, ⊿ifInDiscards is the number of input packets discarded by the ISP server CPU because it is too late to process during the test period, ⊿ifOutDiscards is the number of output packets discarded because the interface is too late to send during the test period, ⊿ifInUnknownProtos is the number of test The number of incoming packets discarded by the ISP server during the period due to receipt of an invalid protocol.

Further optionally, the interface statistical data obtained by the statistical module 15 includes:

The maximum number of bytes of data packets that can be transmitted ifMtu, the bandwidth ifSpeed (in bits per second), the total number of bytes received ifInOctets, the total number of bytes sent ifOutOctets;

The statistics module 15 is specifically used to obtain the remaining network processing capacity E according to the formula (4):

E＝∑(ifSpeed×T/8-⊿ifInOctets-⊿ifOutOctets) (4)

Among them, T is the test period, ⊿ifInOctets is the number of bytes received in the test period, and ⊿ifOutOctets is the number of bytes sent in the test period.

Further optionally, the interface statistical data obtained by the statistical module 15 includes:

The maximum number of data packets that can be transmitted ifMtu, the bandwidth ifSpeed (unit is bit per second), the number of unicast packets received and delivered to the upper layer ifInUcastPkts, the number of multicast packets received and delivered to the upper layer ifInNUcastPkts, received and sent from the upper layer The number of outgoing unicast packets ifOutUcastPkts, the number of multicast packets received and sent out from the upper layer ifOutNUcastPkts;

The statistical module 15 is specifically used to obtain the remaining network processing capacity E according to formula (5):

E＝∑(ifSpeed×T/8–(⊿ifInUcastPkts+⊿ifInNUcastPkts)×ifMtu–(⊿⊿ifOutUcastPkts+⊿ifOutNUcastPkts)×ifMtu) (5)

Among them, T is the test period, ⊿ifInUcastPkts is the number of unicast packets received and delivered to the upper layer during the test period, ⊿ifInNUcastPkts is the number of multicast packets received and delivered to the upper layer during the test period, ⊿ifOutUcastPkts is the number of multicast packets received and delivered to the upper layer during the test period, ⊿ifOutUcastPkts is the number of The number of unicast packets received and sent out from the upper layer, ⊿ifOutNUcastPkts is the number of multicast packets received and sent out from the upper layer during the test period.

The device of this embodiment can be used to implement the technical solution of the method embodiment shown in FIG. 2 , and its implementation principle and technical effect are similar, and will not be repeated here.

Figure 8 is a schematic structural diagram of an embodiment of the ISP server of the present invention, as shown in Figure 8, the device of this embodiment may include: a receiving module 21, a feedback module 22, wherein the receiving module 21 is used to receive the SNMP protocol sent by the DNS server The capability query request message, and the feedback module 22 is configured to feed back a capability query response message of the SNMP protocol to the DNS server, and the capability query response message includes interface statistical data.

The interface statistical data contained in the response message fed back by the feedback module 22 to the DNS server may be at least one type of data in the network interface item ifEntry in MIB-2.

Further optionally, the interface statistical data contained in the response message fed back by the feedback module 22 to the DNS server may include: the maximum number of bytes of data packets that can be transmitted ifMtu, the bandwidth ifSpeed, the total number of bytes received ifInOctets, due to occurrence Number of input packets dropped due to errors ifInErrors, total number of bytes sent ifOutOctets, number of output packets dropped due to errors ifOutErrors.

Further optionally, the interface statistical data contained in the response message fed back by the feedback module 22 to the DNS server may include: the maximum number of bytes of data packets that can be transmitted ifMtu, the bandwidth ifSpeed, the total number of bytes received ifInOctets, due to occurrence The number of input packets discarded by errors ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors, the number of input packets discarded by the ISP server CPU because it was too late to process ifInDiscards, the output packets discarded by the interface too late to send Number ifOutDiscards.

Further optionally, the interface statistical data contained in the response message fed back by the feedback module 22 to the DNS server may include: the maximum number of bytes of data packets that can be transmitted ifMtu, the bandwidth ifSpeed, the total number of bytes received ifInOctets, due to occurrence The number of input packets discarded by errors ifInErrors, the total number of bytes sent ifOutOctets, the number of output packets discarded due to errors ifOutErrors, the number of input packets discarded by the ISP server CPU because it was too late to process ifInDiscards, the output packets discarded by the interface too late to send The number ifOutDiscards, the number of input packets discarded by the ISP server due to receipt of an invalid protocol ifInUnknownProtos.

Further optionally, the interface statistical data contained in the response message fed back by the feedback module 22 to the DNS server may include: the maximum number of bytes of data packets that can be transmitted ifMtu, the bandwidth ifSpeed, the total number of bytes received ifInOctets, sent The total number of bytes ifOutOctets.

Further optionally, the interface statistical data contained in the response message fed back by the feedback module 22 to the DNS server may include: the maximum number of data packet bytes ifMtu that can be transmitted, the bandwidth ifSpeed, and the number of unicast packets received and delivered to the upper layer ifInUcastPkts, the number of multicast packets received and delivered to the upper layer ifInNUcastPkts, the number of unicast packets received and sent from the upper layer ifOutUcastPkts, the number of multicast packets received and sent from the upper layer ifOutNUcastPkts.

The device of this embodiment can be used to execute the technical solution of the method embodiment shown in FIG. 3 , and its implementation principle and technical effect are similar, and will not be repeated here.

Fig. 9 is a schematic structural diagram of an embodiment of the domain name processing system of the present invention. As shown in Fig. 9, the system of this embodiment includes: a DNS server and at least one ISP server, wherein the DNS server can use any device in Fig. 5 to Fig. 7 Structure of the embodiment; at least one ISP server may adopt the structure of the device embodiment in FIG. 8 . Correspondingly, the technical solution of any one of the method embodiments in Fig. 1 to Fig. 4 can be implemented, and its implementation principle and technical effect are similar, and will not be repeated here.

Those of ordinary skill in the art can understand that all or part of the steps for implementing the above method embodiments can be completed by program instructions and related hardware. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (31)

1. an inquiry of the domain name processing method, it is characterised in that including:

Dns server obtains the interface statistics data of each isp server, institute to the inquiry of each isp server Stating interface statistics data is at least one data in the network interface item ifEntry in MIB-2；

Described dns server, according to described interface statistics data, determines the rest network of each isp server Disposal ability；Described rest network ability is for reflecting what isp server was able to receive that, and processed and sends The size of data volume and the speed of response speed；

Described dns server receives the inquiry of the domain name request that user terminal sends；

Described dns server determines the ISP that in each isp server, rest network disposal ability is the strongest Server；

The IP address of described first isp server is fed back to described user terminal by described dns server.

Method the most according to claim 1, it is characterised in that described determine in each isp server Before the first isp server that rest network disposal ability is the strongest, also include:

Inquire about the resource record RR corresponding with each isp server, obtain the rest network of each isp server Disposal ability.

Method the most according to claim 1 and 2, it is characterised in that also include:

If N continuous time is to the failure of isp server query interface statistical data, it is determined that described ISP services Device off-line, described N is the integer more than 2.

Method the most according to claim 1 and 2, it is characterised in that described to each isp server Inquiry obtains the interface statistics data of each isp server, including:

The capability query request message of snmp protocol is sent to each isp server；

Receive the capability query response message of the snmp protocol of each isp server feedback, each capability query Response message comprises the interface statistics data of the isp server of correspondence.

Method the most according to claim 1 and 2, it is characterised in that described interface statistics data, Including:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, the total amount of byte received IfInOctets, input packet count ifInErrors abandoned because making a mistake, the total amount of byte sent IfOutOctets, the output grouping number ifOutErrors abandoned because making a mistake；

Described determine the rest network disposal ability of each isp server according to described interface statistics data, Including:

Described rest network disposal ability E is obtained according to formula (1):

E=∑ (ifSpeed × T/8-ifInOctets-ifOutOctets (ifInErrors+ ifOutErrors)×ifMtu) (1)

Wherein, T is test period, and ifInOctets is the byte number received in test period, IfOutOctets is to have sent byte number in test period, and ifInErrors is that test period endogenous cause of ill occurs mistake The input packet count by mistake abandoned, ifOutErrors is that the output that test period endogenous cause of ill mistake abandons divides Group number.

Method the most according to claim 1 and 2, it is characterised in that described interface statistics data, Including:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, the total amount of byte received IfInOctets, input packet count ifInErrors abandoned because making a mistake, the total amount of byte sent IfOutOctets, the output grouping number ifOutErrors abandoned because making a mistake, isp server CPU because of Input packet count ifInDiscards having little time to process and abandon, the output that interface has little time to send and abandons Packet count ifOutDiscards；

Described determine the rest network disposal ability of each isp server according to described interface statistics data, Including:

Described rest network disposal ability E is obtained according to formula (2):

E=∑ (ifSpeed × T/8-ifInOctets-ifOutOctets (ifInErrors+ ifOutErrors +⊿ifInDiscards+⊿ifOutDiscards)×ifMtu) (2)

Wherein, T is test period, and ifInOctets is the byte number received in test period, IfOutOctets is to have sent byte number in test period, and ifInErrors is that test period endogenous cause of ill occurs mistake The input packet count by mistake abandoned, ifOutErrors is that the output that test period endogenous cause of ill mistake abandons divides Group number, ifInDiscards be in test period isp server CPU abandon because having little time to process defeated Entering packet count, ifOutDiscards is that test period inner joint has little time to send the output grouping abandoned Number.

Method the most according to claim 1 and 2, it is characterised in that described interface statistics data, Including:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, the total amount of byte received IfInOctets, input packet count ifInErrors abandoned because making a mistake, the total amount of byte sent IfOutOctets, the output grouping number ifOutErrors abandoned because making a mistake, isp server CPU because of Input packet count ifInDiscards having little time to process and abandon, the output that interface has little time to send and abandons Packet count ifOutDiscards, the input packet count that isp server abandons because receiving invalidation protocol ifInUnknownProtos；

Described determine the rest network disposal ability of each isp server according to described interface statistics data, Including:

Described rest network disposal ability E is obtained according to formula (3):

E=∑ (ifSpeed × T/8-ifInOctets-ifOutOctets (ifInErrors+ ifOutErrors+ ifInDiscards+⊿ifOutDiscards+⊿ifInUnknownProtos)×ifMtu) (3)

Wherein, T is test period, and ifInOctets is the byte number received in test period, IfOutOctets is to have sent byte number in test period, and ifInErrors is that test period endogenous cause of ill occurs mistake The input packet count by mistake abandoned, ifOutErrors is that the output that test period endogenous cause of ill mistake abandons divides Group number, ifInDiscards be in test period isp server CPU abandon because having little time to process defeated Entering packet count, ifOutDiscards is that test period inner joint has little time to send the output grouping abandoned Number, ifInUnknownProtos is that isp server abandons because receiving invalidation protocol in test period Input packet count.

Method the most according to claim 1 and 2, it is characterised in that described interface statistics data, Including:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, the total amount of byte received IfInOctets, total amount of byte ifOutOctets sent；

Described determine the rest network disposal ability of each isp server according to described interface statistics data, Including:

Described rest network disposal ability E is obtained according to formula (4):

E=∑ (ifSpeed × T/8-ifInOctets-ifOutOctets) (4)

Wherein, T is test period, and ifInOctets is the byte number received in test period, IfOutOctets is to have sent byte number in test period.

Method the most according to claim 1 and 2, it is characterised in that described interface statistics data, Including:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, receive and be delivered to upper strata Unicast packet number ifInUcastPkts, receives and is delivered to multicast packet count ifInNUcastPkts on upper strata, The unicast packet number ifOutUcastPkts received from upper strata and send, receives from upper strata and sends Multicast packet count ifOutNUcastPkts；

Described determine the rest network disposal ability of each isp server according to described interface statistics data, Including:

Described rest network disposal ability E is obtained according to formula (5):

E=∑ (ifSpeed × T/8 (ifInUcastPkts+ ifInNUcastPkts) × ifMtu ( ifOutUcastPkts+⊿ifOutNUcastPkts)×ifMtu) (5)

Wherein, T is test period, and ifInUcastPkts is for receive and to be delivered to upper strata within test period Unicast packet number, ifInNUcastPkts is that the multicast receiving and being delivered to upper strata within test period divides Group number, ifOutUcastPkts is the unicast packet receiving from upper strata within test period and sending Number, ifOutNUcastPkts is the multicast packet count receiving from upper strata within test period and sending.

10. an inquiry of the domain name processing method, it is characterised in that including:

Isp server receives the capability query request message of the snmp protocol that dns server sends；

Described isp server is to the capability query response report of described dns server feedback snmp protocol Literary composition, comprises interface statistics data in described capability query response message so that described dns server according to Described interface statistics data, determine the rest network disposal ability of each isp server；Described rest network The size of the data volume that ability is able to receive that for reflecting isp server, processes and sends and response speed The speed of degree, described interface statistics data are at least one in the network interface item ifEntry in MIB-2 Data.

11. methods according to claim 10, it is characterised in that described interface statistics data, bag Include:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, the total amount of byte received IfInOctets, input packet count ifInErrors abandoned because making a mistake, the total amount of byte sent IfOutOctets, the output grouping number ifOutErrors abandoned because making a mistake.

12. methods according to claim 10, it is characterised in that described interface statistics data, bag Include:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, the total amount of byte received IfInOctets, input packet count ifInErrors abandoned because making a mistake, the total amount of byte sent IfOutOctets, the output grouping number ifOutErrors abandoned because making a mistake, isp server CPU because of Input packet count ifInDiscards having little time to process and abandon, the output that interface has little time to send and abandons Packet count ifOutDiscards.

13. methods according to claim 10, it is characterised in that described interface statistics data, bag Include:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, the total amount of byte received IfInOctets, input packet count ifInErrors abandoned because making a mistake, the total amount of byte sent IfOutOctets, the output grouping number ifOutErrors abandoned because making a mistake, isp server CPU because of Input packet count ifInDiscards having little time to process and abandon, the output that interface has little time to send and abandons Packet count ifOutDiscards, the input packet count that isp server abandons because receiving invalidation protocol ifInUnknownProtos。

14. methods according to claim 10, it is characterised in that described interface statistics data, bag Include:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, the total amount of byte received IfInOctets, total amount of byte ifOutOctets sent.

15. methods according to claim 10, it is characterised in that described interface statistics data, bag Include:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, receive and be delivered to upper strata Unicast packet number ifInUcastPkts, receives and is delivered to multicast packet count ifInNUcastPkts on upper strata, The unicast packet number ifOutUcastPkts received from upper strata and send, receives from upper strata and sends Multicast packet count ifOutNUcastPkts.

16. 1 kinds of dns servers, it is characterised in that including:

Statistical module, for obtaining the interface statistics data of each isp server to the inquiry of each isp server, According to described interface statistics data, determine the rest network disposal ability of each isp server；Described residue The size of the data volume that network capabilities is able to receive that for reflecting isp server, processes and sends and sound Answer the speed of speed, described interface statistics data be in the network interface item ifEntry in MIB-2 at least A kind of data；

Receiver module, for receiving the inquiry of the domain name request that user terminal sends；

Select module, for determining the ISP that in each isp server, rest network disposal ability is the strongest Server；

Feedback module, for feeding back to described user terminal by the IP address of described first isp server.

17. dns servers according to claim 16, it is characterised in that also include:

Enquiry module, for the resource record RR that inquiry is corresponding with each isp server, obtains each ISP clothes The rest network disposal ability of business device.

18. according to the dns server described in claim 16 or 17, it is characterised in that also include:

Determination module, if for N continuous time to the failure of isp server query interface statistical data, the most really Fixed described isp server off-line, described N is the integer more than 2.

19. according to the dns server described in claim 16 or 17, it is characterised in that described statistics Module, including:

Transmitting element, for sending the capability query request message of snmp protocol to each isp server；

Receive unit, for receiving the capability query response report of the snmp protocol of each isp server feedback Literary composition, comprises the interface statistics data of the isp server of correspondence in each capability query response message；

Statistical disposition unit, for according to described interface statistics data, determines the residue of each isp server Network throughput.

20. according to the dns server described in claim 16 or 17, it is characterised in that described interface Statistical data, including:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, the total amount of byte received IfInOctets, input packet count ifInErrors abandoned because making a mistake, the total amount of byte sent IfOutOctets, the output grouping number ifOutErrors abandoned because making a mistake；

Described statistical module, specifically for:

Described rest network disposal ability E is obtained according to formula (1):

E=∑ (ifSpeed × T/8-ifInOctets-ifOutOctets (ifInErrors+ ifOutErrors)×ifMtu) (1)

Wherein, T is test period, and ifInOctets is the byte number received in test period, IfOutOctets is to have sent byte number in test period, and ifInErrors is that test period endogenous cause of ill occurs mistake The input packet count by mistake abandoned, ifOutErrors is that the output that test period endogenous cause of ill mistake abandons divides Group number.

21. according to the dns server described in claim 16 or 17, it is characterised in that described statistics The interface statistics data of module statistics, including:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, the total amount of byte received IfInOctets, input packet count ifInErrors abandoned because making a mistake, the total amount of byte sent IfOutOctets, the output grouping number ifOutErrors abandoned because making a mistake, isp server CPU because of Input packet count ifInDiscards having little time to process and abandon, the output that interface has little time to send and abandons Packet count ifOutDiscards；

Described statistical module, specifically for:

Described rest network disposal ability E is obtained according to formula (2):

E=∑ (ifSpeed × T/8-ifInOctets-ifOutOctets (ifInErrors+ ifOutErrors +⊿ifInDiscards+⊿ifOutDiscards)×ifMtu) (2)

Wherein, T is test period, and ifInOctets is the byte number received in test period, IfOutOctets is to have sent byte number in test period, and ifInErrors is that test period endogenous cause of ill occurs mistake The input packet count by mistake abandoned, ifOutErrors is that the output that test period endogenous cause of ill mistake abandons divides Group number, ifInDiscards be in test period isp server CPU abandon because having little time to process defeated Entering packet count, ifOutDiscards is that test period inner joint has little time to send the output grouping abandoned Number.

22. according to the dns server described in claim 16 or 17, it is characterised in that described statistics The interface statistics data of module statistics, including:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, the total amount of byte received IfInOctets, input packet count ifInErrors abandoned because making a mistake, the total amount of byte sent IfOutOctets, the output grouping number ifOutErrors abandoned because making a mistake, isp server CPU because of Input packet count ifInDiscards having little time to process and abandon, the output that interface has little time to send and abandons Packet count ifOutDiscards, the input packet count that isp server abandons because receiving invalidation protocol ifInUnknownProtos；

Described statistical module, specifically for:

Described rest network disposal ability E is obtained according to formula (3):

E=∑ (ifSpeed × T/8-ifInOctets-ifOutOctets (ifInErrors+ ifOutErrors+ ifInDiscards+⊿ifOutDiscards+⊿ifInUnknownProtos)×ifMtu) (3)

Wherein, T is test period, and ifInOctets is the byte number received in test period, IfOutOctets is to have sent byte number in test period, and ifInErrors is that test period endogenous cause of ill occurs mistake The input packet count by mistake abandoned, ifOutErrors is that the output that test period endogenous cause of ill mistake abandons divides Group number, ifInDiscards be in test period isp server CPU abandon because having little time to process defeated Entering packet count, ifOutDiscards is that test period inner joint has little time to send the output grouping abandoned Number, ifInUnknownProtos is that isp server abandons because receiving invalidation protocol in test period Input packet count.

23. according to the dns server described in claim 16 or 17, it is characterised in that described statistics The interface statistics data of module statistics, including:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, the total amount of byte received IfInOctets, total amount of byte ifOutOctets sent；

Described statistical module, specifically for:

Described rest network disposal ability E is obtained according to formula (4):

E=∑ (ifSpeed × T/8-ifInOctets-ifOutOctets) (4)

Wherein, T is test period, and ifInOctets is the byte number received in test period, IfOutOctets is to have sent byte number in test period.

24. according to the dns server described in claim 16 or 17, it is characterised in that described statistics The interface statistics data of module statistics, including:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, receive and be delivered to upper strata Unicast packet number ifInUcastPkts, receives and is delivered to multicast packet count ifInNUcastPkts on upper strata, The unicast packet number ifOutUcastPkts received from upper strata and send, receives from upper strata and sends Multicast packet count ifOutNUcastPkts；

Described statistical module, specifically for:

Described rest network disposal ability E is obtained according to formula (5):

E=∑ (ifSpeed × T/8 (ifInUcastPkts+ ifInNUcastPkts) × ifMtu ( ifOutUcastPkts+⊿ifOutNUcastPkts)×ifMtu) (5)

Wherein, T is test period, and ifInUcastPkts is for receive and to be delivered to upper strata within test period Unicast packet number, ifInNUcastPkts is that the multicast receiving and being delivered to upper strata within test period divides Group number, ifOutUcastPkts is the unicast packet receiving from upper strata within test period and sending Number, ifOutNUcastPkts is the multicast packet count receiving from upper strata within test period and sending.

25. 1 kinds of isp servers, it is characterised in that including:

Receiver module, for receiving the capability query request report of the snmp protocol that dns server sends Literary composition；

Feedback module, for the capability query response report of described dns server feedback snmp protocol Literary composition, comprises interface statistics data in described capability query response message so that described dns server according to Described interface statistics data, determine the rest network disposal ability of each isp server；Described rest network The size of the data volume that ability is able to receive that for reflecting isp server, processes and sends and response speed The speed of degree, described interface statistics data are at least one in the network interface item ifEntry in MIB-2 Data.

26. isp servers according to claim 25, it is characterised in that described interface statistics number According to, including:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, the total amount of byte received IfInOctets, input packet count ifInErrors abandoned because making a mistake, the total amount of byte sent IfOutOctets, the output grouping number ifOutErrors abandoned because making a mistake.

27. isp servers according to claim 25, it is characterised in that described interface statistics number According to, including:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, the total amount of byte received IfInOctets, input packet count ifInErrors abandoned because making a mistake, the total amount of byte sent IfOutOctets, the output grouping number ifOutErrors abandoned because making a mistake, isp server CPU because of Input packet count ifInDiscards having little time to process and abandon, the output that interface has little time to send and abandons Packet count ifOutDiscards.

28. isp servers according to claim 25, it is characterised in that described interface statistics number According to, including:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, the total amount of byte received IfInOctets, input packet count ifInErrors abandoned because making a mistake, the total amount of byte sent IfOutOctets, the output grouping number ifOutErrors abandoned because making a mistake, isp server CPU because of Input packet count ifInDiscards having little time to process and abandon, the output that interface has little time to send and abandons Packet count ifOutDiscards, the input packet count that isp server abandons because receiving invalidation protocol ifInUnknownProtos。

29. isp servers according to claim 25, it is characterised in that described interface statistics number According to, including:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, the total amount of byte received IfInOctets, total amount of byte ifOutOctets sent.

30. isp servers according to claim 25, it is characterised in that described interface statistics number According to, including:

The maximum data packet byte number ifMtu that can transmit, bandwidth ifSpeed, receive and be delivered to upper strata Unicast packet number ifInUcastPkts, receives and is delivered to multicast packet count ifInNUcastPkts on upper strata, The unicast packet number ifOutUcastPkts received from upper strata and send, receives from upper strata and sends Multicast packet count ifOutNUcastPkts.

31. 1 kinds of domain name processing systems, it is characterised in that include institute any one of claim 16～24 Isp server according to any one of the dns server stated and at least one claim 25～30.