CN108964955A - A kind of loss Trap message lookup method and Network Management System and a kind of SNMP agent - Google Patents
A kind of loss Trap message lookup method and Network Management System and a kind of SNMP agent Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/02—Standardisation; Integration
- H04L41/0213—Standardised network management protocols, e.g. simple network management protocol [SNMP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0829—Packet loss
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
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Abstract
One aspect of the present invention provides a kind of Trap monitoring messages method, receives the heartbeat message that SNMP agent is sent including Network Management System, the heartbeat message carries the identity set for the Trap message that the SNMP agent has been sent in predetermined time interval；The Network Management System searches the Trap message not received by comparing identity and the identity of received Trap message in the time interval in the identity set.The present invention also provides Network Management System corresponding with method and a kind of SNMP agent, at least solve in the prior art can not low network overhead simultaneously high-timeliness monitoring Trap message the technical issues of.
Description
Technical field
This disclosure relates to computer field, in particular to a kind of loss Trap message lookup method and Network Management System,
A kind of SNMP agent.
Background technique
SNMP is that Internet Engineering Task group (IETF, Internet Engineering Task Force) defines
Network management standard based on TCP/IP protocol suite, be it is a kind of manage in an ip network network node (such as server, work station,
Router, interchanger etc.) standard agreement.In the communication network system based on SNMP, network equipment SNMP agent can be to net
Network management system (NMS) sends Trap message, comes the change and some other critical event of report device states or configuration.In net
Network management domain, most of SNMP are realized using UDP as transport layer protocol, since UDP is connectionless, non-reliable, and
Snmp protocol itself does not provide transmission reliability guarantee, therefore SNMP agent and Network Management System can not monitor Trap message
Transmission state.Monitoring Trap message transmissions reliability is solved in the prior art, and Trap is detected using SNMP agent active poll
The mode whether message is lost.But if polling interval is too long, and Network Management System (NMS) cannot grasp device data or shape in time
The variation of state.If polling interval is too short, Network Management System resource and network bandwidth can be caused to waste.Poll time can not be slapped
It holds.The technical solution of monitoring Trap message low currently without network overhead while high timeliness in the prior art.
Summary of the invention
The present invention provides a kind of loss Trap message lookup method and Network Management System, a kind of SNMP agent, so that
It is few solve in the prior art can not low network overhead simultaneously high-timeliness monitoring Trap message the technical issues of.
One aspect of the present invention provides a kind of Trap monitoring messages method, including Network Management System receives SNMP agent and sends
Heartbeat message, the heartbeat message carries the identity mark for the Trap message that the SNMP agent has been sent in predetermined time interval
Know set；The Network Management System is by the identity in the comparison identity set and in the time interval
The Trap message not received is searched in the identity of received Trap message.
Further, the Network Management System sends setting request message to the SNMP agent according to comparison result,
Wherein, the setting request message is used to that the SNMP agent to be requested to retransmit the Trap message not received.
Further, the heartbeat message further includes chain alarming information.
Further, the method also includes: the Network Management System is according to the chain alarming information maintenance link
State: the link state original state is Up, and the Network Management System monitors the heartbeat message under the Up state,
If waiting heartbeat message time-out and when expired times are more than preset threshold value, by the link state by the UP shape
State is adjusted to Down state；The Network Management System monitors the heartbeat message under the Down state, if receiving institute
Heartbeat message is stated, the link state is adjusted to Up state by Down state.
Another aspect of the present invention also provides a kind of Trap monitoring messages method, comprising: Network Management System is to SNMP agent
Send acquisition request message, wherein the acquisition request message is for requesting the SNMP agent to send in predetermined time interval
The identity set of the Trap message sent；The Network Management System receives response message, wherein the response message
Carry the identity set for the Trap message that the SNMP agent has been sent in predetermined time interval；The Network Management System
By the identity mark for comparing the identity in the identity set with received Trap message in the time interval
Know, searches the Trap message not received.
Another aspect of the present invention also provides a kind of Trap monitoring messages method, comprising: SNMP agent is to Network Management System
Send heartbeat message, wherein the heartbeat message carries the Trap message that the SNMP agent has been sent in predetermined time interval
Identity set, the identity set is for the Network Management System by comparing in the identity set
Identity and the identity of received Trap message in the time interval, search the Trap message not received.
Another aspect of the present invention also provides a kind of Network Management System, comprising: processor, for realizing each instruction；And
Equipment is stored, is suitable for storing a plurality of instruction, described instruction is suitable for being loaded and being executed by processor: receiving what SNMP agent was sent
Heartbeat message, the heartbeat message carry the identity for the Trap message that the SNMP agent has been sent in predetermined time interval
Set；By the body for comparing the identity in the identity set with received Trap message in the time interval
Part mark, searches the Trap message not received.
Another aspect of the present invention also provides a kind of Network Management System, comprising: processor, for realizing each instruction；And
Equipment is stored, is suitable for storing a plurality of instruction, described instruction is suitable for being loaded and being executed from processor: sending and obtains to SNMP agent
Request message, wherein what the acquisition request message was used to request to have sent in the SNMP agent transmission predetermined time interval
The identity set of Trap message；Receive response message, wherein the response message carries described in predetermined time interval
The identity set for the Trap message that SNMP agent has been sent；By compare the identity in the identity set with
The Trap message not received is searched in the identity of received Trap message in the time interval.
Another aspect of the present invention also provides a kind of SNMP agent, including processor, for realizing each instruction；And storage is set
It is standby, it is suitable for storing a plurality of instruction, described instruction is suitable for being loaded and being executed from processor: sending heartbeat report to Network Management System
Text, wherein the heartbeat message carries the identity for the Trap message that the SNMP agent has been sent in predetermined time interval
Set, the identity set is for the Network Management System by comparing the identity in the identity set
With the identity of received Trap message in the time interval, the Trap message not received is searched.
The present invention by utilize SNMP agent report and alarm heartbeat message technical solution, each SNMP agent of flexible configuration
The time of Trap message transmission situation in the predetermined time is reported, high-timeliness monitors Trap message transmissions state, moreover it is possible to same to Times
Chain circuit alarming state is accused, the waste to Network Management System resource and network bandwidth is reduced, evades and being generated under extreme network environment
The risk of alarm windstorm, at least solve in the prior art can not low network overhead simultaneously high-timeliness monitoring Trap message technology
Problem.
Detailed description of the invention
Fig. 1 is a kind of Trap monitoring messages method flow diagram of the embodiment of the present invention；
Fig. 2 is embodiment of the present disclosure SNMPv1 version Trap PDUPDU structure chart；
Fig. 3 is embodiment of the present disclosure SNMPv2/3 version Trap PDUPDU structure chart；
Fig. 4 is disclosure preferred embodiment SNMPv1 version heartbeat warning message structure chart；
Fig. 5 is disclosure preferred embodiment SNMPv2/3 version heartbeat warning message structure chart；
Fig. 6 is disclosure preferred embodiment chain circuit alarming state transition diagram；
Fig. 7 be the embodiment of the present disclosure alarm link-recovery after the synchronization loss Trap message operation timing scheme；
Fig. 8 is synchronization loss Trap message timing diagram when embodiment of the present disclosure alarm link is normal；
Fig. 9 is a kind of Network Management System schematic diagram of the embodiment of the present invention
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.
One aspect of the present invention provided a kind of Trap monitoring messages method, and Fig. 1 is a kind of Trap report of the embodiment of the present invention
Literary monitoring method flow chart, as shown in Figure 1, comprising:
S101: Network Management System receives the heartbeat message that SNMP agent is sent, and the heartbeat message carries the predetermined time
The identity set for the Trap message that the SNMP agent has been sent in being spaced；
S102: the Network Management System is by the identity in the comparison identity set and in the time
The identity of received Trap message in being spaced, searches the Trap message not received.
Wherein, the Trap message includes management object eventID, and the Trap message identity mark is reported by the Trap
Text management object event identity eventID is carried, and the Trap message identity mark is that network equipment divides for each notification event
The unique sequence numbers matched.
In preferred embodiment disclosed by the disclosure, the network equipment distributes one only for its each notification event generated
One serial number " Event ID " is as mark.
SNMP entity accesses " the Event ID " of current notifications event by management object " eventID ".
SNMP agent will manage object " eventID " example when constructing Trap PDU (Protocol Data Unit)
It is tied to PDU variable part, the object instance value of binding is " the Event ID " of notification event.
Fig. 2 is disclosure preferred embodiment SNMPv1 version Trap PDUPDU structure chart, as shown in Figure 2 for SNMPv1,
Manage first binding amount of object " eventID " example as Trap PDU.
Fig. 3 is disclosure preferred embodiment SNMPv2/3 version Trap PDUPDU structure chart, as shown in figure 3, for
SNMPv2/3, due to RFC3416 provide Trap PDU the first two binding amount be respectively " sysUpTime.0 ",
" snmpTrapOID.0 " therefore manages third binding amount of object " eventID " example as Trap PDU.
All non-alarm heartbeat event sequences generated since last time alarm heartbeat message are carried in alarm heartbeat Trap message
Number.Network device internal safeguards one " list of Trap message ", for saving all Trap message informations generated in equipment.Net
Network equipment periodic generates alarm heartbeat Trap message, and sends alarm heartbeat message to snmp management station by SNMP agent, on
The event is reported to give Network Management System (NMS), that is, Network Management System.
Trap PDU variable part of the SNMP agent in transmission, binding variable
"recentNonHbEvtIdList.lastHbEvtID".Variate-value is, equipment since last time alerts heartbeat message, generation
" Event ID " list of all Trap messages.
Fig. 4 is disclosure preferred embodiment SNMPv1 version heartbeat warning message structure chart, as shown in figure 4, for
SNMPv1, " recentNonHbEvtIdList.lastHbEvtID " are second binding amount of Trap PDU.
Fig. 5 is disclosure preferred embodiment SNMPv2/3 version heartbeat warning message structure chart, as shown in figure 5, for
SNMPv2/3, " recentNonHbEvtIdList.lastHbEvtID " are the 4th binding amount of Trap PDU.
Further, heartbeat message further includes chain alarming information, and the Network Management System is according to the chain circuit alarming
Maintenance of information link state,
Fig. 6 is disclosure preferred embodiment chain circuit alarming state transition diagram, as shown in fig. 6, Network Management System (NMS) is just
Alarm link state begin as " UP ".Under " UP " state, if waiting alarm heartbeat event time-out, and expired times are more than that maximum permits
Perhaps number, then it is assumed that alarm link failure, link state can move to " DOWN ".Under " DOWN " state, if receiving alarm
Heartbeat event, then it is assumed that alarm link-recovery, link state migrate back " UP ".
Further, after the recovery of chain circuit alarming state, Network Management System sends acquisition request message to SNMP agent,
Wherein, the acquisition request message is used to that the SNMP agent to be requested to send the Trap message sent in predetermined time interval
Identity set；The Network Management System receives response message, wherein the response message carries in predetermined time interval
The identity set for the Trap message that the SNMP agent has been sent；The Network Management System is by comparing the identity mark
Know the identity and the identity of received Trap message in the time interval in set, what lookup did not received
Trap message.
Fig. 7 be the embodiment of the present disclosure alarm link-recovery after the synchronization loss Trap message operation timing scheme, as shown in fig. 7,
After Network Management System (NMS) detects alarm link failure, GetRequest is sent by snmp management station and is requested to equipment
SNMP agent, the binding variable " recentNonHbEvtIdList.lastHbEvtID " in the GetRequest PDU of transmission,
To obtain the notification event " Event for specifying all non-alarm heartbeat events generated since alarm heartbeat event in equipment
ID " list.
After the network equipment receives above-mentioned GetRequest by SNMP agent, the first inquiry from " notification event list "
Since " lastHbEvtID " specified alarm heartbeat event, the notification event of all non-alarm heartbeat events of generation
" Event ID " list.
GetResponse is sent to the snmp management station of Network Management System (NMS) by SNMP agent again,
Binding variable " recentNonHbEvtIdList.lastHbEvtID " in GetResponsePDU, variate-value are above-mentioned " Event
ID " list.
After Network Management System (NMS) receives above-mentioned GetResponse by snmp management station, from PDU binding amount
It has been obtained in " recentNonHbEvtIdList.lastHbEvtID ", the institute that the network equipment generates since last time alerts heartbeat event
There is " Event ID " list of non-alarm event, and compared with " the non-alarm heartbeat notification event id list of current alarm period ".
For event is not present in " the non-alarm heartbeat notification event id list of current alarm period ", then it is assumed that the event
Trap loses.
Network Management System (NMS) sends SetRequst by snmp management station and gives network equipment SNMP agent, and request is set
It is standby to report loss event again.In the SetRequest PDU variable part of transmission, binding variable
" syncEventIdList.0 ", variate-value are loss event " Event ID " list.
After the network equipment receives the SetRequest request of management station by SNMP agent, from binding amount
In " syncEventIdList.0 ", " Event ID " list for the notification event that need to be reported again, and " leading to from maintenance are obtained
Know list of thing " in obtain the event information, send event Trap again by SNMP agent and give Network Management System (NMS)
Snmp management station.
Further, when chain circuit alarming is normal, clearly lose Trap message after, the Network Management System according to than
Setting request message is sent to the SNMP agent to result, wherein the setting request message is for requesting the SNMP generation
Reason retransmits the Trap message not received.
In disclosure preferred embodiment, " the current alarm period non-alarm heart of Network Management System (NMS) internal maintenance one
Jump notification event ID list ", all non-alarms for having been received from the network equipment since saving last time alarm heartbeat event
The notification event " Event ID " of heartbeat event,.
Fig. 8 is synchronization loss Trap message timing diagram when embodiment of the present disclosure alarm link is normal, as shown in figure 8, network
After management system (NMS) receives alarm heartbeat Trap by Network Management System, from PDU binding amount
It has been obtained in " recentNonHbEvtIdList.lastHbEvtID ", the institute that the network equipment generates since last time alerts heartbeat event
There is " Event ID " list of non-alarm event, and compared with " the non-alarm heartbeat notification event id list of current alarm period ".
For event is not present in " the non-alarm heartbeat notification event id list of current alarm period ", then it is assumed that the event
Trap loses.
Network Management System (NMS) sends SetRequst by Network Management System and gives network equipment SNMP agent, requests
Equipment reports loss event again.In the SetRequest PDU variable part of transmission, binding variable
" syncEventIdList.0 ", variate-value are loss event " Event ID " list.
After the network equipment receives the SetRequest request of Network Management System by SNMP agent, from binding amount
In " syncEventIdList.0 ", " Event ID " list for the notification event that need to be reported again, and " leading to from maintenance are obtained
Know list of thing " in obtain the event information, send event Trap again by SNMP agent and give Network Management System (NMS)
Snmp management station.
The disclosure also provides a kind of Trap monitoring messages method, comprising: SNMP agent sends heartbeat to Network Management System
Message, wherein the heartbeat message carries the identity mark for the Trap message that the SNMP agent has been sent in predetermined time interval
Know set, the identity set is for the Network Management System by comparing the identity mark in the identity set
Know the identity with received Trap message in the time interval, searches the Trap message not received.
The disclosure additionally provides a kind of Network Management System, comprising: processor, for realizing each instruction；And storage is set
It is standby, it is suitable for storing a plurality of instruction, described instruction is suitable for being loaded and being executed by processor: receiving the heartbeat report that SNMP agent is sent
Text, the heartbeat message carry the identity set for the Trap message that the SNMP agent has been sent in predetermined time interval；
By the identity mark for comparing the identity in the identity set with received Trap message in the time interval
Know, searches the Trap message not received., Fig. 9 is a kind of Network Management System schematic diagram of the embodiment of the present invention, such as Fig. 9 institute
Show, including storage equipment 91；Processor 92 is configured to execution described instruction to execute down and tells operation: receiving SNMP agent and send
Trap message, record the identity of the Trap message；Receive the heartbeat message that the SNMP agent is sent, the heartbeat
Message carries identity identification list, and the identity identification list includes whole transmitted by the SNMP agent in the predetermined time
The identity of Trap message searches the Trap lost according to the identity for comparing the identity identification list and the record
Message identity mark.
The disclosure additionally provides a kind of Network Management System, comprising: processor, for realizing each instruction；And storage is set
It is standby, it is suitable for storing a plurality of instruction, described instruction is suitable for being loaded and being executed from processor: sending acquisition request report to SNMP agent
Text, wherein the acquisition request message is used to that the SNMP agent to be requested to send the Trap report sent in predetermined time interval
The identity set of text；Receive response message, wherein the response message carries the SNMP agent in predetermined time interval
The identity set of the Trap message sent；By the identity in the comparison identity set and when described
Between be spaced in received Trap message identity, search the Trap message that does not receive.
The disclosure additionally provides a kind of SNMP agent, including；Processor, for realizing each instruction；And storage equipment, it fits
For storing a plurality of instruction, described instruction is suitable for being loaded and being executed from processor: heartbeat message is sent to Network Management System,
In, the heartbeat message carries the identity set for the Trap message that the SNMP agent has been sent in predetermined time interval,
The identity set for the Network Management System by compare the identity in the identity set with
The Trap message not received is searched in the identity of received Trap message in the time interval.
Disclosure preferred embodiment, the network equipment are that each notification event generated distributes a unique serial number, SNMP generation
The period is managed to Network Management System transmission alarm link heartbeat Trap.Alarm link heartbeat Trap PDU of the SNMP agent in transmission
In, carry all non-alarm heartbeat notification event serial numbers generated since last time heartbeat notification event.By comparing network management
The Trap test serial number and Network Management System that system receives receive the serial number monitoring Trap message for including in above-mentioned list
Transmission state had not only reduced the waste to Network Management System resource and network bandwidth, but also can advise compared with prior art
It keeps away under extreme network environment and generates the risk of alarm windstorm.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
Above this is merely a preferred embodiment of the present invention, and is not intended to restrict the invention, for the technology of this field
For personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of loss Trap message lookup method characterized by comprising
Network Management System receives the heartbeat message that SNMP agent is sent, and the heartbeat message carries described in predetermined time interval
The identity set for the Trap message that SNMP agent has been sent；
The Network Management System is by comparing the identity in the identity set and connecing in the time interval
The Trap message not received is searched in the identity of the Trap message of receipts.
2. the method according to claim 1, wherein the method also includes:
The Network Management System sends setting request message to the SNMP agent according to comparison result, wherein the setting
Request message is used to that the SNMP agent to be requested to retransmit the Trap message not received.
3. the method according to claim 1, wherein the heartbeat message further includes chain alarming information.
4. according to the method described in claim 3, it is characterized in that, the method also includes:
The Network Management System is according to the chain alarming information maintenance link state:
The link state original state is Up, and the Network Management System monitors the heartbeat message under the Up state,
If waiting heartbeat message time-out and when expired times are more than preset threshold value, by the link state by the UP shape
State is adjusted to Down state；
The Network Management System monitors the heartbeat message under the Down state, will if receiving the heartbeat message
The link state is adjusted to Up state by Down state.
5. a kind of Trap message lookup method characterized by comprising
Network Management System sends acquisition request message to SNMP agent, wherein the acquisition request message is described for requesting
SNMP agent sends the identity set of the Trap message sent in predetermined time interval；
The Network Management System receives response message, wherein the response message carries the SNMP in predetermined time interval
Act on behalf of the identity set of the Trap message sent；
The Network Management System is by comparing the identity in the identity set and connecing in the time interval
The Trap message not received is searched in the identity of the Trap message of receipts.
6. a kind of Trap message lookup method characterized by comprising
SNMP agent sends heartbeat message to Network Management System, wherein the heartbeat message carries institute in predetermined time interval
The identity set for the Trap message that SNMP agent has been sent is stated, the identity set is used for the Network Management System
By the identity mark for comparing the identity in the identity set with received Trap message in the time interval
Know, searches the Trap message not received.
7. a kind of Network Management System, comprising:
Processor, for realizing each instruction；And storage equipment, it is suitable for storing a plurality of instruction, described instruction is suitable for by handling
Device is loaded and is executed:
The heartbeat message that SNMP agent is sent is received, the heartbeat message carries the SNMP agent in predetermined time interval and sent out
The identity set of the Trap message sent；
By the body for comparing the identity in the identity set with received Trap message in the time interval
Part mark, searches the Trap message not received.
8. a kind of Network Management System, comprising:
Processor, for realizing each instruction；And storage equipment, it is suitable for storing a plurality of instruction, described instruction is suitable for by handling
Device is loaded and is executed:
Acquisition request message is sent to SNMP agent, wherein the acquisition request message is for requesting the SNMP agent to send
The identity set of the Trap message sent in predetermined time interval；
Receive response message, wherein the response message carries the Trap that the SNMP agent has been sent in predetermined time interval
The identity set of message；
By the body for comparing the identity in the identity set with received Trap message in the time interval
Part mark, searches the Trap message not received.
9. a kind of SNMP agent, including；
Processor, for realizing each instruction；And storage equipment, it is suitable for storing a plurality of instruction, described instruction is suitable for by handling
Device is loaded and is executed:
Heartbeat message is sent to Network Management System, wherein the heartbeat message carries the SNMP generation in predetermined time interval
The identity set of the Trap message sent is managed, the identity set passes through comparison for the Network Management System
Identity and the identity of received Trap message in the time interval in the identity set, are searched not
The Trap message received.
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| CN112951385A (en) * | 2021-03-16 | 2021-06-11 | 上海市胸科医院 | Data access method and equipment for PACS image storage system |
| CN116346879A (en) * | 2023-02-23 | 2023-06-27 | 福建万福信息技术有限公司 | Method, system, equipment and medium for communication based on transparent transmission message and DTU |
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| CN102857421A (en) * | 2012-08-31 | 2013-01-02 | 杭州华三通信技术有限公司 | VLL fault detection method and device |
| WO2016049872A1 (en) * | 2014-09-30 | 2016-04-07 | 华为技术有限公司 | Device and method for measuring network packet loss |
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