CN105577484A - EAPS failure detection method and system, and EAPS network - Google Patents
EAPS failure detection method and system, and EAPS network Download PDFInfo
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- CN105577484A CN105577484A CN201610116216.3A CN201610116216A CN105577484A CN 105577484 A CN105577484 A CN 105577484A CN 201610116216 A CN201610116216 A CN 201610116216A CN 105577484 A CN105577484 A CN 105577484A
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- 239000000523 sample Substances 0.000 claims description 69
- 230000006855 networking Effects 0.000 claims description 21
- 238000005516 engineering process Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
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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
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
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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
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
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- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention provides an EAPS failure detection method. The EAPS failure detection method comprises the following steps: a first detection message is sent through a primary port of a primary node, and the first detection message is received by a secondary port of the primary node after being sequentially forwarded through a plurality of relaying nodes; a second detection message is sent through the secondary port of the primary node, the second detection message is received by the primary port of the primary node after being sequentially forwarded through the relaying nodes, and the second detection message forwarding sequence of the relaying nodes is reversed to the first detection message forwarding sequence of the relaying nodes; the received results of the secondary port and the primary port of the primary node are compared for consistence, and the secondary port of the primary node is blocked through control in case of inconsistence. The invention further provides an EAPS failure detection system implementing the EAPS failure detection method, and an EAPS network employing the system. Through adoption of the EAPS failure detection method and system provided by the invention, unidirectional link failures can be detected, and broadcast storms caused by unidirectional link failures can be further avoided, so that the network is more stable and reliable.
Description
Technical field
The present invention relates to network detection field, espespecially a kind of EAPS fault detection method and system and EAPS networking.
Background technology
When switchboard unit network, need long-play, its situation that may occur instability or restart, now network connects and will disconnect, and division appears in networking, can not form an entirety, affects user and uses.
Therefore, one or more backup link must be there is in networking.Under normal circumstances, the backup port on backup link is in blocked state, does not E-Packet and does not learn mac list item, avoid loop like this; When a failure occurs, backup link reverts to forwarding state, replaces faulty link work, avoids network to be disconnected like this.This technology is called link redundancy technology.
Link redundancy technology has a lot, and EAPS belongs to wherein a kind of, and it has simple, practical feature, can realize other convergence rate of 50 Milliseconds.EAPS agreement operationally, a switch only has two ports to participate in the computing of ring, and only have a switch can block the secondary port of oneself in ring, this switch is called host node masternode, such as, Sw1 in Fig. 1, other switch is called transit node transitnode, such as, Sw2, Sw3, Sw4, Sw5 in Fig. 1.
When normally running, the primary port of masternode regularly sends EAPS message, and secondary port can receive this message, and blocks the port of oneself.Can detect that ring is normal like this.When secondary port can not receive message, just think that loop is abnormal, secondary port will become normal forwarding state from blocked state.Networking as shown in Figure 1, under normal circumstances, the secondary port of Sw1 gets clogged, and avoids loop; When switch Sw3 is restarted or have a link to disconnect, the secondary port of Sw1 will be decontroled, and state becomes forwarding.
Visible, current technology is unidirectional detection, only to transmit messages literary composition from the primary port of host node, can not detect unidirectional link failure, thus cannot avoid the broadcast storm that unidirectional link failure causes.
Summary of the invention
The object of this invention is to provide a kind of EAPS fault detection method and system and EAPS networking, can unidirectional link failure be detected, and avoid the broadcast storm that unidirectional link failure causes further.
Technical scheme provided by the invention is as follows:
A kind of EAPS fault detection method, it comprises:
The primary port of host node sends the first probe messages, and by the secondary port accepts of host node after multiple transit node forwards successively;
The secondary port of host node sends the second probe messages, and to forward successively and forwarding order in multiple transit node is contrary with the forwarding order of described first probe messages, rear by the primary port accepts of host node through described multiple transit node;
Whether the reception result of the secondary port of host node described in comparison is consistent with the reception result of the primary port of described host node, and the secondary port controlling described host node when reception result is inconsistent is blocked state.
Further, described EAPS fault detection method comprises further:
When the reception result of the reception result of the secondary port of host node described in comparison and the primary port of described host node is inconsistent, send warning information.
Further, described EAPS fault detection method comprises further:
When unidirectional link failure disappears, return the step of described comparison.
Further, described EAPS fault detection method comprises further:
When the reception result of the secondary port of described host node is consistent with the reception result of the primary port of described host node, judge that whether this consistent reception result for receiving probe messages further, and when consistent reception result is when receiving probe messages, the secondary port controlling described host node is blocked state; And when consistent reception result is when not receiving probe messages, the secondary port controlling described host node is forwarding state.
Further preferably, described comparison comprises further:
Whether the secondary port of host node described in comparison, the primary port of described host node receive probe messages;
Or;
Whether the probe messages that the secondary port of host node described in comparison, the primary port accepts of described host node arrive is consistent.
Further preferably, described second probe messages comprises the source MAC of the secondary port of described host node further;
And/or;
The primary port of described host node and the secondary port of described host node send probe messages with the frequency keeps preset respectively.
Present invention also offers a kind of EAPS fault detection system, it applies EAPS fault detection method as the aforementioned, and described EAPS fault detection system comprises:
Comparing module, whether it is consistent with the reception result of the primary port of described host node for the reception result of the secondary port of host node described in comparison;
Status control module, it is electrically connected with described comparing module, and is blocked state for the secondary port controlling described host node when there is described reception result and being inconsistent.
Further, described EAPS fault detection system comprises further:
Alarm module, it is electrically connected with described comparing module, and for sending warning information when there is described reception result and being inconsistent.
Further, described EAPS fault detection system comprises further: judge module, it is electrically connected with described comparing module and described status control module respectively, and for go out when comparison described reception result consistent time, judge that this consistent reception result receives probe messages or do not receive probe messages, and when judging that this consistent reception result is when receiving probe messages, described in described state controlling module controls, the secondary port of host node is blocked state; And when judging that this consistent reception result is when not receiving probe messages, described in described state controlling module controls, the secondary port of host node is forwarding state.
Present invention also offers a kind of EAPS networking, it comprises EAPS fault detection system as the aforementioned, and comprises further:
Host node and multiple transit node;
Described host node comprises primary port, secondary port, and described transit node comprises two and forwards port;
Wherein, the described primary port of host node sends the first probe messages, and by the described secondary port accepts of host node after multiple transit node forwards successively;
The described secondary port of host node sends the second probe messages, and to forward successively and forwarding order in multiple transit node is contrary with the forwarding order of described first probe messages, rear by the described primary port accepts of host node through described multiple transit node.
By a kind of EAPS fault detection method provided by the invention and system and EAPS networking, following at least one beneficial effect can be brought:
1, the present invention can carry out bi-directional probing in EAPS networking, thus finds unidirectional link failure, avoids unidirectional broadcast storm.In EAPS networking, the forwarding port set probe messages transmission path circlewise of the primary port of host node, secondary port and multiple transit node, wherein, the primary port of host node can send probe messages and by secondary port accepts after being forwarded by multiple transit node, and the secondary port of host node also can send probe messages and by primary port accepts after being forwarded along the order contrary with aforementioned routing direction by multiple transit node.The reception result of the reception result of the secondary port of host node and the primary port of host node is compared, can judge to there is unidirectional link failure in networking when the two is inconsistent, and the secondary port controlling host node is blocked state, thus avoid unidirectional broadcast storm.
2, when the reception result of the secondary port of described host node is consistent with the reception result of the primary port of described host node, and consistent reception result is when receiving probe messages simultaneously, then loop is normal, and the secondary port controlling described host node is blocked state; And when consistent reception result is that when not receiving probe messages, then loop is abnormal, the secondary port controlling described host node is forwarding state.Can ensure so also to perform correct operation when reception result is consistent, keep the normal of loop.
3, the primary port of host node, secondary port send with the frequency (interval) preset circulation, and especially after unidirectional link failure is removed, whether the chain environment that can continue to monitor networking is normal.
Accompanying drawing explanation
Below by clearly understandable mode, accompanying drawings preferred implementation, is further described the above-mentioned characteristic of a kind of EAPS fault detection method and system and EAPS networking, technical characteristic, advantage and implementation thereof.
Fig. 1 is the structural representation of a kind of EAPS networking in prior art;
Fig. 2 is the flow chart of a kind of embodiment of EAPS fault detection method of the present invention;
Fig. 3 is the flow chart of the another kind of embodiment of EAPS fault detection method of the present invention;
Fig. 4 is the structural representation of a kind of embodiment of EAPS fault detection system of the present invention;
Fig. 5 is the structural representation of the another kind of embodiment of EAPS fault detection system of the present invention;
Fig. 6 is the structural representation of a kind of embodiment of EAPS networking of the present invention.
Embodiment
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, contrast accompanying drawing is illustrated the specific embodiment of the present invention below.Apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, and obtain other execution mode.
For making simplified form, only schematically show part related to the present invention in each figure, they do not represent its practical structures as product.In addition, be convenient to make simplified form understand, there are the parts of same structure or function in some figure, only schematically depict one of them, or only marked one of them.In this article, " one " not only represents " only this ", also can represent the situation of " more than one ".
In the embodiment one of EAPS fault detection method of the present invention, with reference to Fig. 2, comprise the steps:
Step 101: the primary port of host node sends the first probe messages, and by the secondary port accepts of host node after multiple transit node forwards successively;
Step 102: the secondary port of host node sends the second probe messages, and by the primary port accepts of host node after described multiple transit node forwards successively;
Step 103: whether the reception result of the secondary port of host node described in comparison is consistent with the reception result of the primary port of described host node; And step 104 is performed when inconsistent;
Step 104: the secondary port controlling described host node is blocked state.
In the present embodiment, the EAPS networking of applying EAPS fault detection method of the present invention comprises host node and multiple transit node, and the message that each node has two ports to be applied to EAPS networking sends.Can refer to Fig. 6, Sw1 is host node, and Sw2, Sw3, Sw4, Sw5 are transit nodes.In the present embodiment, distinguish with prior art, in order to detect unidirectional fault, primary port and the secondary port of host node all can send, receive probe messages.Can refer to Fig. 6, after the primary port of host node Sw1 sends the first probe messages, by the secondary port accepts of host node after transit node Sw2, Sw3, Sw4, Sw5 forward successively; After the secondary port of host node Sw1 sends the second probe messages, forward successively through transit node Sw5, Sw4, Sw3, Sw2, rear by the primary port accepts of host node.Wherein, the forwarding order of the first probe messages in multiple transit node is contrary with the forwarding order of the second probe messages in multiple transit node.When detecting unidirectional link failure, whether consistent with the reception result of the primary port of host node by the reception result of the secondary port of comparison host node, and judge when reception result is inconsistent to occur unidirectional link failure, and the secondary port controlling described host node is blocked state, prevents unidirectional broadcast storm.
In the embodiment two of EAPS fault detection method of the present invention, on the basis of above-described embodiment one, further when the reception result of the reception result of the secondary port of comparison host node and the primary port of host node is inconsistent, send warning information, realize prompting function.
In the embodiment three of EAPS fault detection method of the present invention, on the basis of above-described embodiment one, can also further when unidirectional link failure disappear, Recycle ratio is to the reception result of the secondary port of the host node step whether consistent with the reception result of the primary port of host node.Namely, after unidirectional link failure disappears, continue through the reception result of the secondary port of comparison host node and monitor unidirectional link failure with whether the reception result of the primary port of host node is consistent, there is stronger dependability.Preferably, host node primary port, secondary port continue, circulating sends probe messages, sending interval, transmission frequency can be pre-set by user.
In the embodiment four of EAPS fault detection method of the present invention, on the basis of above-described embodiment one, further, when the reception result of the secondary port of comparison host node is consistent with the reception result of the primary port of host node, judge that whether this consistent reception result for receiving probe messages further, and when consistent reception result is when receiving probe messages, the secondary port controlling host node is blocked state, prevents the generation of broadcast storm; And when consistent reception result is when not receiving probe messages, the secondary port controlling host node is forwarding state, solves the problem that cannot send message that link failure causes.
In the embodiment five of EAPS fault detection method of the present invention, on the basis of above-described embodiment one, the reception result of the secondary port of comparison host node and the primary port accepts result of host node whether consistent in, can be whether secondary port, the primary port of comparison host node receives probe messages; Also can be whether the probe messages that both comparisons receive is consistent.
In the embodiment six of EAPS fault detection method of the present invention, on the basis of above-described embodiment one, further, the second probe messages that the secondary port of host node sends comprises the source MAC of the secondary port of host node further, is convenient to identify the message that secondary port sends when the reception result of the secondary port of comparison host node, both primary ports.
In a preferred embodiment of EAPS fault detection method of the present invention, see Fig. 3, comprise following step:
Step 201: the primary port of host node sends the first probe messages, and by the secondary port accepts of host node after multiple transit node forwards successively;
Step 202: the secondary port of host node sends the second probe messages, and by the primary port accepts of host node after described multiple transit node forwards successively;
Step 203: whether the reception result of the secondary port of host node described in comparison is consistent with the reception result of the primary port of described host node; And step 204 is performed when consistent; And step 207 is performed when inconsistent;
Step 204: judge that consistent reception result receives probe messages or do not receive probe messages; And when being execution step 205 when receiving probe messages; And when being execution step 206 when not receiving probe messages;
Step 205: the secondary port controlling host node is blocked state;
Step 204: the secondary port controlling host node is forwarding state;
Step 207: the secondary port controlling host node is blocked state;
Step 208: send warning information further when comparison result is inconsistent; And step 203 is returned after unidirectional link failure disappears.
In the embodiment one of EAPS fault detection system of the present invention, with reference to Fig. 4, it comprises:
Comparing module 1, whether it is consistent with the reception result of the primary port of described host node for the reception result of the secondary port of host node described in comparison;
Status control module 2, it is electrically connected with described comparing module 1, and is blocked state for the secondary port controlling described host node when there is described reception result and being inconsistent.
In the embodiment two of EAPS fault detection system of the present invention, it is a preferred embodiment, and with reference to Fig. 5, it comprises:
Comparing module 1, whether it is consistent with the reception result of the primary port of described host node for the reception result of the secondary port of host node described in comparison;
Status control module 2, it is electrically connected with described comparing module 1, and is blocked state for the secondary port controlling described host node when there is described reception result and being inconsistent;
Alarm module 3, it is electrically connected with described comparing module 1, and for sending warning information when there is described reception result and being inconsistent;
Judge module 4, it is electrically connected with described comparing module 1 and described status control module 2 respectively, and for go out when comparison described reception result consistent time, judge that this consistent reception result receives probe messages or do not receive probe messages, and when judging that this consistent reception result is when receiving probe messages, the secondary port that described status control module 2 controls described host node is blocked state; And when judging that this consistent reception result is when not receiving probe messages, the secondary port that described status control module 2 controls described host node is forwarding state.
Present invention also offers a kind of EAPS networking, it comprises EAPS fault detection system as the aforementioned, with reference to Fig. 6, and comprises further: host node Sw1 and transit node Sw2, Sw3, Sw4, Sw5; Each node is a switch, and each node is interconnected to form a ring, and each node can only have two ports to belong to this ring, is primary port and secondary port respectively.Wherein, the primary port of host node Sw1 sends the first probe messages, and by the secondary port accepts of host node Sw1 after transit node Sw2, Sw3, Sw4, Sw5 forward successively; The secondary port of host node Sw1 sends the second probe messages, and forwards successively through transit node Sw5, Sw4, Sw3, Sw2, rear by the primary port accepts of host node Sw1.Wherein, the forwarding order of the first probe messages in multiple transit node is contrary with the forwarding order of the second probe messages in multiple transit node.
In the present embodiment, EAPS message is only propagated in control VLAN (VLAN), is what to separate with protection VLAN.When the secondary port block of host node, its control VLAN still can proper communication.And the primary port of host node can send probe messages, with originally constant; But the secondary port of host node also can send probe messages simultaneously, and can be arrived by primary port accepts, so just achieve bi-directional probing.
In other embodiments of EAPS networking of the present invention, comprise a host node, the number of transit node is not limited simultaneously.
The present invention can carry out bi-directional probing in EAPS networking, thus finds unidirectional link failure, avoids unidirectional broadcast storm, and network can be made more reliable and more stable.
It should be noted that above-described embodiment all can independent assortment as required.The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. an EAPS fault detection method, is characterized in that, comprising:
The primary port of host node sends the first probe messages, and by the secondary port accepts of host node after multiple transit node forwards successively;
The secondary port of host node sends the second probe messages, and to forward successively and forwarding order in multiple transit node is contrary with the forwarding order of described first probe messages, rear by the primary port accepts of host node through described multiple transit node;
Whether the reception result of the secondary port of host node described in comparison is consistent with the reception result of the primary port of described host node, and the secondary port controlling described host node when reception result is inconsistent is blocked state.
2. EAPS fault detection method according to claim 1, is characterized in that, comprise further:
When the reception result of the reception result of the secondary port of host node described in comparison and the primary port of described host node is inconsistent, send warning information.
3. EAPS fault detection method according to claim 1, is characterized in that, comprise further:
When unidirectional link failure disappears, return the step of described comparison.
4. EAPS fault detection method according to claim 1, is characterized in that, comprise further:
When the reception result of the secondary port of described host node is consistent with the reception result of the primary port of described host node, judge that whether this consistent reception result for receiving probe messages further, and when consistent reception result is when receiving probe messages, the secondary port controlling described host node is blocked state; And when consistent reception result is when not receiving probe messages, the secondary port controlling described host node is forwarding state.
5. EAPS fault detection method according to claim 1, is characterized in that, described comparison is entered
One step comprises:
Whether the secondary port of host node described in comparison, the primary port of described host node receive probe messages;
Or;
Whether the probe messages that the secondary port of host node described in comparison, the primary port accepts of described host node arrive is consistent.
6., according to the arbitrary described EAPS fault detection method of claim 1-5, it is characterized in that:
Described second probe messages comprises the source MAC of the secondary port of described host node further;
And/or;
The primary port of described host node and the secondary port of described host node send probe messages with the frequency keeps preset respectively.
7. an EAPS fault detection system, is characterized in that, apply as arbitrary in claim 1-6 as described in EAPS fault detection method, described EAPS fault detection system comprises:
Comparing module, whether it is consistent with the reception result of the primary port of described host node for the reception result of the secondary port of host node described in comparison;
Status control module, it is electrically connected with described comparing module, and is blocked state for the secondary port controlling described host node when there is described reception result and being inconsistent.
8. EAPS fault detection system according to claim 7, is characterized in that, comprise further:
Alarm module, it is electrically connected with described comparing module, and for sending warning information when there is described reception result and being inconsistent.
9. EAPS fault detection system according to claim 7, is characterized in that, comprise further:
Judge module, it is electrically connected with described comparing module and described status control module respectively, and for go out when comparison described reception result consistent time, judge that this consistent reception result receives probe messages or do not receive probe messages, and when judging that this consistent reception result is when receiving probe messages, described in described state controlling module controls, the secondary port of host node is blocked state; And when judging that this consistent reception result is when not receiving probe messages, described in described state controlling module controls, the secondary port of host node is forwarding state.
10. an EAPS networking, is characterized in that, comprise as arbitrary in claim 7-9 as described in EAPS fault detection system, and to comprise further:
Host node and multiple transit node;
Described host node comprises primary port, secondary port, and described transit node comprises two and forwards port;
Wherein, the described primary port of host node sends the first probe messages, and by the described secondary port accepts of host node after multiple transit node forwards successively;
The described secondary port of host node sends the second probe messages, and to forward successively and forwarding order in multiple transit node is contrary with the forwarding order of described first probe messages, rear by the described primary port accepts of host node through described multiple transit node.
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