CN103457756A - Method, device and system for loop path detection - Google Patents
Method, device and system for loop path detection Download PDFInfo
- Publication number
- CN103457756A CN103457756A CN2012101829840A CN201210182984A CN103457756A CN 103457756 A CN103457756 A CN 103457756A CN 2012101829840 A CN2012101829840 A CN 2012101829840A CN 201210182984 A CN201210182984 A CN 201210182984A CN 103457756 A CN103457756 A CN 103457756A
- Authority
- CN
- China
- Prior art keywords
- port
- network element
- loop paths
- identification information
- loop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The embodiment of the invention discloses a method, device and system for loop path detection. The method for loop path detection comprises the following steps that a loop path existing in a network element is obtained from topological data of a port of the network element, the loop path is stored in a loop path table, and the topological data comprise identification information of the port and identification information of a next-level node connected with the port; when a medium access control address of the port of the network element is shifted, the loop path table is looked up according to the original identification information of the port and the shifted identification information, and the loop path on a protocol is obtained.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of loop paths detection method, Apparatus and system.
Background technology
Along with the universal development of Ethernet, the communication apparatus (following unification is called network element) be deployed in network is more and more, and the topological structure that the network element in network forms becomes increasingly complex.
The network topology structure of communication operator mainly contains: ring-type and tree-shaped.
Circulus can realize encircling interior link redundancy protection, promotes the reliability of network, and this structure is deployed in MAN (Metropolitan Area Network, metropolitan area network) usually.
Based on Ethernet, be basic communication, in circulus, the broadcasting packet forwarding that can circulate between network element, this phenomenon is commonly called as " broadcast storm ", once this phenomenon appearance can take the network bandwidth in the short time, more serious consequence is to cause network paralysis, and consequence is very serious.Therefore, form physically in the network of ring-type topological structure, must carry out the broken ring of protocol level, implementation method is, according to certain rule, to becoming the port of ring, carries out the obstruction of protocol level, make it can not send message, thereby it is tree-shaped to realize that ring-type becomes.The agreement of existing broken ring has MSTP (Multiple Spanning Tree Protocol; Multiple Spanning Tree Protocol), RRPP (Rapid Ring Protection Protocol; rapid ring protection protocol) etc., the network element deploy after above-mentioned agreement, can effectively avoid network Cheng Huan.
In order to reduce broadcasting packet, two layers based on the Ethernet message forward principle, network element need to be at inbound port learning message SMAC (Source Media Access Control, media interviews address, source), record VLAN (Virtual Line Access Network) and SMAC that message carries, so that during the message backhaul, according to VLAN and DMAC (Destination Media Access Control, target MAC (Media Access Control) address) search the message outbound port, accomplish that the backhaul clean culture sends.
Once network forms loop, forward principle according to two layers of Ethernets, the MAC Address place physical port in same VLAN scope is updated, and MAC Address is drifted about between port, as shown in Figure 1.In Fig. 1, as loop paths network element R1 (Router, router) receive message on, message source MAC is MAC1, suppose that all network elements of whole loop paths all are in same VLAN together and forward in territory, so along the routing direction of figure tri-arrow logos, forward on network element and learn successively MAC address entries at each, shown in one, when message is sent back to R1 (P6 port) again, input VLAN and MAC Address, coupling mac learning list item one, new port (P6) is refreshed to old port (P0), this phenomenon is called the MAC Address drift phenomenon.
Under ring network framework, the Sampling network loop seems important, existing detection mode is periodically from physical port (as P1), outwards to send the message of special characteristic by network element, once the receive direction of this network element is received this characteristic message, block this receiving port (P6), follow-up this network element can not outwards send message from this port (P6), as shown in Figure 2.But there are a lot of problems in this mode, as:
1, periodically to all physical ports in network element, send messages, consume the cpu resource of network element;
2, testing mechanism depends on network element transmitting-receiving message, detection ageing not high;
3, detection messages may be dropped on forward-path network element network element, and under the network congestion scene, reliability is not high;
4, in this feature message (proprietary protocol) other network elements in network, may be by wrong processing, as expect other network element nonrecognition, as data retransmission, yet processing identified by it, final detection messages is dropped, and has the compatibility issue of this equipment room;
5, can only know starting point and the terminal of loop, but the fullpath of loop can't present, if need broken ring, also need network element one by one to investigate respectively, be unfavorable for that customer network unifies O&M.
Summary of the invention
One embodiment of the invention provides a kind of loop detecting method, comprising:
Obtain the loop paths existed in network element from the topological data of the port of network element, loop paths is stored in the loop paths table, described topological data comprises the identification information of described port and the identification information of the next-hop node that described port connects;
When the port generation media access control address of network element drifts about, search described loop paths table according to the identification information after the former identification information of port and drift, obtain the loop paths on agreement.
One embodiment of the invention provides a kind of management equipment of network element, comprising:
Memory module, for the topological data of the port of storing network element, described topological data comprises the identification information of described port and the identification information of the next-hop node that described port connects;
Physics loop computing module, for obtain the loop paths existed between network element from described topological data, be stored in loop paths in the loop paths table of memory module;
Agreement loop computing module, while drifting about for the port generation media access control address when network element, search described loop paths table according to the former identification information of described port and the identification information after drift, obtains the loop paths on agreement.
One embodiment of the invention provides a kind of loop detection system, comprises the management equipment of a plurality of network elements and described a plurality of network elements,
Described management equipment, topological data for the port from network element is obtained loop paths, loop paths is stored in the loop paths table, when the port generation media access control address of network element drifts about, search described loop paths table according to the former identification information of port and the identification information after drift, obtain the loop paths on agreement;
Wherein, described topological data comprises the identification information of described port and the identification information of the next-hop node that described port connects.
The loop detecting method that the embodiment of the present invention provides, device and system, by preserving the topological data of port, thereby obtain the identification information of the next-hop node of port, can further obtain complete loop paths, when the MAC Address drift occurs, can accurately navigate to the loop paths on agreement, not need to send in addition detection messages, effectively save the cpu resource of network bandwidth resources and equipment.
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is MAC Address Drift Process schematic diagram in prior art;
Fig. 2 is prior art loop detection process schematic diagram;
The loop detecting method flow chart that Fig. 3 provides for the embodiment of the present invention;
The network element port schematic diagram that Fig. 4 provides for the embodiment of the present invention.
The schematic flow sheet of the loop detecting method that Fig. 5 provides for the embodiment of the present invention;
Port schematic diagram during a network element that Fig. 6 a provides for the embodiment of the present invention;
The schematic diagram of a topological data during network element that Fig. 6 b provides for the embodiment of the present invention;
Port schematic diagram during two network elements that Fig. 7 a provides for the embodiment of the present invention;
The schematic diagram of topological data during two network elements that Fig. 7 b provides for the embodiment of the present invention;
Loop paths schematic diagram during two network elements that Fig. 7 c provides for the embodiment of the present invention;
Port schematic diagram during three network elements that Fig. 8 a provides for the embodiment of the present invention;
The schematic diagram of topological data during three network elements that Fig. 8 b provides for the embodiment of the present invention;
Loop paths schematic diagram during three network elements that Fig. 8 c provides for the embodiment of the present invention;
The structural representation of the management equipment of a kind of network element that Fig. 9 provides for the embodiment of the present invention;
The structural representation of the management equipment of a kind of network element that Figure 10 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out to clear, complete description, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of loop detecting method, as shown in Figure 3, comprising:
Step 201, from the topological data of the port of network element, obtain the loop paths existed in network element, loop paths is stored in the loop paths table.
In embodiments of the present invention, a plurality of network elements can be arranged, preserve the topological data of the port of these network elements on the management equipment of network element, management equipment can be webmaster, can be also network element served as the role of manager etc., the topological data of port can be also to be kept at management equipment to have on the specific installation of annexation.
In order to realize conveniently, the port in the embodiment of the present invention can be the port that possesses transmitting-receiving Ethernet message ability on network element, also forwards port.If a plurality of forwarding ports are arranged on a network element, can on management equipment, for each, forward port and preserve a topological data, topological data can comprise the identification information of the next-hop node that port-mark and this port connect, the next-hop node here can be certain port on the down hop network element, and identification information can be port numbers and/or the frame position/slot number of port on network element etc.
Loop paths table in the embodiment of the present invention can comprise many loop paths physically.Article one, the generative process of loop paths can be to choose the port that there is no next-hop node on a network element as the path originating point, according to the identification information of the next-hop node in the topological data of port, traveled through successively, until a port that is connected with next-hop node of getting back on the network element at originating point place, path finishes, the set of traversal node out is a loop paths.
Step 203, when the drift of the port generation MAC Address of network element, search the loop paths table according to the former identification information of port and the identification information after drift, thereby obtain the loop paths on agreement.
In embodiments of the present invention, by preserving the topological data of port, thereby obtain the identification information of the next-hop node of port, can further obtain complete loop paths, when the MAC Address drift occurs, can accurately navigate to the loop paths on agreement, not need to send in addition detection messages, effectively save the cpu resource of network bandwidth resources and equipment.
Concrete, one embodiment of the invention provides a kind of loop paths detection method, in the method, need on the management equipment of network element, preserve the topological data of the port of network element, port in the present embodiment can be port all on network element, can be also the port (forwarding port) that possesses transmitting-receiving Ethernet message ability, for convenience of describing, following examples will be for forwarding port.Topological data can comprise the identification information of port and the identification information of next-hop node, can also comprise the type of port and the quantity of next-hop node etc.
The identification information of port can be port numbers and/or the frame position/slot number of port on network element, also can be comprised of port numbers and network element ID, will be with port numbers and network element ID as an example in the present embodiment, and network element ID can be network element numbering etc.
The type of port is distinguished according to the topology location of network element upper port, comprises two kinds of edge port and inline ports, wherein,
Edge port: the port that does not connect next-hop node;
Inline port: the port that is connected with next-hop node.
As shown in Figure 4,
Edge port comprises: P1, P3, P4, P5, P6, P7; The edge port number is labeled as N
edge;
Inline port comprises: P2, P8; Network element 1 is connected with P8 by P2 with network element 2; Inline port number is labeled as N
inline;
The port number summation N=N that possesses transmitting-receiving Ethernet message ability on network element
edge+ N
inline.
For the next-hop node identification information, as this port is edge port, next-hop node is empty node; As this port is inline port, the identification information that next-hop node is the port that is connected with this port.
The method that the present embodiment provides as shown in Figure 5, comprising:
Management equipment is the extracting loops path from the topological data of preserving, concrete:
When only having a network element, as shown in Figure 6 a, network element 1 comprises P1, P2, P3, tetra-ports of P4, and these four ports all do not have to be connected with other ports, are edge port, and the topological data of preserving on management equipment as shown in Figure 6 b.
Can extract 4 paths from the topological data shown in Fig. 6 b, but all only have start point information, destination node points to empty node, does not therefore have loop paths.
When 2 network elements are arranged, as shown in Figure 7a, P5, P6, P7, P8 port are arranged on network element 2, network element 2 is connected to the P2 of network element 1 by P8.P5, P6, P7 are edge port, P8 is inline port, compare Fig. 6 a, port P2 on network element 1 is changed to inline port from edge port, therefore can on the basis of Fig. 6 b, delete the topological data of P2, then increase the topological data that P8 points to P2 and P2 sensing P8, the topological data of network element 1 and network element 2 as shown in Figure 7b, can travel through out 6 loop paths from topological data, be respectively following (referring to Fig. 7 c):
(P1，P2，P8)
(P3，P2，P8)
(P4，P2，P8)
(P5，P8，P2)
(P6，P8，P2)
(P7，P8，P2)
When 3 network elements are arranged, as shown in Figure 8 a, compare Fig. 7 a, the port P3 of network element 1 is changed to inline port from edge port; The port P7 of network element 2 is changed to inline port from edge port, therefore can first delete and take the topological data that P3 and P7 be the path starting point, because the quantity of the inline port on network element 1 and network element 2 is 2, the next node that P8 and P2 point to is not just empty, point to respectively P7 and P3, topological data as shown in Figure 8 b, if using respectively P1 and P4 as the path originating point, travel through successively, can obtain following 4 loop paths (referring to Fig. 8 c):
(P1，P2，P8，P7，P10，P9，P3，P2)
(P4，P2，P8，P7，P10，P9，P3，P2)
(P1，P3，P9，P10，P7，P8，P2，P3)
(P4, P3, P9, P10, P7, P8, P2, P3) in like manner, respectively with edge port P5, P6, P11, P12 is the path initial point, generates following 8 loop paths, as follows:
(P5，P8，P2，P3，P9，P10，P7，P8)
(P6，P8，P2，P3，P9，P10，P7，P8)
(P5，P7，P10，P9，P3，P2，P8，P7)
(P6，P7，P10，P9，P3，P2，P8，P7)
(P11，P9，P3，P2，P8，P7，P10，P9)
(P12，P9，P3，P2，P8，P7，P10，P9)
(P11，P10，P7，P8，P2，P3，P9，P10)
(P12，P10，P7，P8，P2，P3，P9，P10)
, when three network elements are arranged, the loop paths table is as shown in table 1:
Table 1
Remarks: while for path starting point port numbering, being greater than the Trail Termination Point numbering, contrary operation has been done in path.
If the MAC Address drift has occurred in certain port on network element, as shown in table 2,
Table 2
| Network element | MAC | OldPort | NewPort |
| Network element 1 | MAC1 | P1 | P3 |
The above-mentioned MAC Address drift of reported by network elements information, management equipment be take P1 as the path starting point, and P3 is Trail Termination Point, as initial conditions, in the loop paths table, is searched, thereby hit path 3, therefore, the full set of this loop is (P1, P3, P9, P10, P7, P8, P2, P3).
After the loop paths of having obtained on corresponding agreement, can close the forwarding capability of certain port on the loop paths on described agreement, perhaps block certain port on the loop paths on described agreement, as opened the broken ring property of agreement on network element, as MSTP, RRPP etc., reach the purpose of the protocol forward state of choke ring road port.
The method that the present embodiment provides, by preserving the topological data of port, can obtain the loop paths physically existed between network element, when the MAC Address drift occurs, can accurately navigate to the loop paths on agreement, do not need to send in addition detection messages, effectively saved the cpu resource of network bandwidth resources and equipment.
One embodiment of the invention provides a kind of management equipment of network element, as shown in Figure 9, comprises memory module 901, physics loop computing module 903 and agreement loop computing module 905.
Topological data can also comprise the type of port and the quantity of the next-hop node that port connects etc., and the type of its middle port can comprise according to the residing topology location of port the fringe node that does not connect next-hop node and be connected with the inline node of next-hop node.
Physics loop computing module 903, for obtain the loop paths existed between network element from topological data, be stored in loop paths in the loop paths table of memory module 901.
Agreement loop computing module 905, while drifting about for the port generation media access control address when network element, search described loop paths table according to the port-mark after former port-mark and drift, obtains the loop paths on agreement.
The loop paths table record has the physics loop paths existed between network element.Concrete, physics loop computing module 903 comprises control module 9031 and spider module 9033, as shown in figure 10.
The management equipment 900 that the present embodiment provides also comprises network element interface module 907, and for receiving the MAC Address drift information of reported by network elements, MAC Address drift information comprises the former identification information of the port that the MAC Address drift occurs and the identification information after drift.
The management equipment that the present embodiment provides can be webmaster, it can be also the network element that serves as the role of manager, as DSLAM (Digital Subscriber Line Access Multiplexer, Digital Subscriber Line Access Multiplexer), OLT (Optical Line Terminal, optical line terminal), router, switch etc.
The management equipment that the present embodiment provides can be obtained the loop paths physically existed between network element from the topological data of the port preserved, when the MAC Address drift occurs, can accurately navigate to the loop paths on agreement, do not need to send in addition detection messages, effectively saved the cpu resource of network bandwidth resources and equipment.
For system and device embodiment, due to it, substantially corresponding to embodiment of the method, so describe fairly simplely, relevant part gets final product referring to the part explanation of embodiment of the method.System embodiment described above is only schematic, the wherein said module as the separating component explanation can or can not be also physically to separate, the parts that show as module can be or can not be also physical modules, can be positioned at a place, or also can be distributed on a plurality of mixed-media network modules mixed-medias.Can select according to the actual needs some or all of module wherein to realize the purpose of the present embodiment scheme.Those of ordinary skills in the situation that do not pay creative work, can understand and implement.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.Multiple modification to these embodiment will be apparent for those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the embodiment of the present invention, realization in other embodiments.Therefore, the embodiment of the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (13)
1. a loop detecting method, is characterized in that, comprising:
Obtain the loop paths existed in network element from the topological data of the port of network element, loop paths is stored in the loop paths table, described topological data comprises the identification information of described port and the identification information of the next-hop node that described port connects;
When the port generation media access control address of network element drifts about, search described loop paths table according to the identification information after the former identification information of port and drift, obtain the loop paths on agreement.
2. method according to claim 1, is characterized in that, described topological data also comprises the type of described port, and the type of described port comprises the edge port that there is no next-hop node, and the inline port that is connected with next-hop node.
3. method according to claim 2, is characterized in that, obtains the loop paths existed in network element the topological data of the described port from network element and specifically comprise:
Choosing an edge port on any network element is the path originating point, mode according to from the inline port direction traversal to network element travels through, until the inline port of the network element that path node is originating point place, described path, the set of traversal node out is a loop paths.
4. method according to claim 1 and 2, is characterized in that, the identification information of the port on the down hop network element that the identification information of described next-hop node is described port connection.
5. method according to claim 4, is characterized in that, the identification information of described port comprises port numbers and/or the described port frame position/slot number on network element, or comprise the combination of port numbers and network element numbering.
6. method according to claim 1 and 2, is characterized in that, described topological data also comprises the quantity of the next-hop node that described port connects.
7. method according to claim 1, is characterized in that, described method also comprises: close the forwarding capability of certain port on the loop paths on described agreement, or block certain port on the loop paths on described agreement.
8. the management equipment of a network element, is characterized in that, comprising:
Memory module, for the topological data of the port of storing network element, described topological data comprises the identification information of described port and the identification information of the next-hop node that described port connects;
Physics loop computing module, for obtain the loop paths existed between network element from described topological data, be stored in loop paths in the loop paths table of memory module;
Agreement loop computing module, while drifting about for the port generation media access control address when network element, search described loop paths table according to the former identification information of described port and the identification information after drift, obtains the loop paths on agreement.
9. management equipment according to claim 8, is characterized in that, described topological data also comprises the type of described port, and the type of described port comprises the edge port that there is no next-hop node, and the inline port that is connected with next-hop node,
Described physics loop computing module comprises:
Control module, for choosing an edge port on network element;
Spider module, for take the port that described control module chooses, it is the path originating point, mode according to from the inline port direction traversal to network element travels through, until the inline port on the network element that path node is originating point place, described path, the set of traversal node out is a loop paths.
10. management equipment according to claim 8 or claim 9, is characterized in that, described management equipment also comprises the network element interface module, for the described former identification information that receives reported by network elements and the identification information after drift.
11. a loop paths detection system, comprise and it is characterized in that the management equipment of a plurality of network elements and described a plurality of network elements,
Described management equipment, topological data for the port from network element is obtained loop paths, loop paths is stored in the loop paths table, when the port generation media access control address of network element drifts about, search described loop paths table according to the former identification information of port and the identification information after drift, obtain the loop paths on agreement;
Wherein, described topological data comprises the identification information of described port and the identification information of the next-hop node that described port connects.
12. system according to claim 11, is characterized in that, described topological data also comprises the type of described port, and the type of described port comprises the edge port that there is no next-hop node, and the inline port that is connected with next-hop node,
Described management equipment is obtained loop paths from the topological data of the port of network element and is specifically comprised:
Choose a network element in described a plurality of network elements, an edge port of take on selected network element is the path originating point, mode according to from the inline port direction traversal to network element travels through, until the inline port that path node is the described network element of choosing, the set of traversal node out is a loop paths.
13. according to the described system of claim 11 or 12, it is characterized in that, described management equipment is also for closing the forwarding capability of certain port on the loop paths on described agreement, or blocks certain port on the loop paths on described agreement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210182984.0A CN103457756B (en) | 2012-06-05 | 2012-06-05 | A kind of loop path detection, Apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210182984.0A CN103457756B (en) | 2012-06-05 | 2012-06-05 | A kind of loop path detection, Apparatus and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103457756A true CN103457756A (en) | 2013-12-18 |
| CN103457756B CN103457756B (en) | 2016-08-03 |
Family
ID=49739746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210182984.0A Active CN103457756B (en) | 2012-06-05 | 2012-06-05 | A kind of loop path detection, Apparatus and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103457756B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119777A (en) * | 2015-09-07 | 2015-12-02 | 烽火通信科技股份有限公司 | Link loopback detection method in passive optical network (PON) system |
| CN105721297A (en) * | 2016-01-28 | 2016-06-29 | 北京国电通网络技术有限公司 | Routing loop detecting method and system based on SDN |
| CN106789625A (en) * | 2016-12-26 | 2017-05-31 | 北京华为数字技术有限公司 | A kind of loop detecting method and device |
| CN112187635A (en) * | 2019-07-01 | 2021-01-05 | 中兴通讯股份有限公司 | Message forwarding method and device |
| CN114257891A (en) * | 2021-12-22 | 2022-03-29 | 苏州盛科通信股份有限公司 | Method for controlling MAC drift in passive optical network and application |
| CN114301815A (en) * | 2021-12-30 | 2022-04-08 | 山石网科通信技术股份有限公司 | Broadcast storm processing method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217539A (en) * | 2007-12-29 | 2008-07-09 | 杭州华三通信技术有限公司 | A firewall device and method for treatment of secondary forwarding message |
| US20100172245A1 (en) * | 2009-01-07 | 2010-07-08 | Alcatel-Lucent Usa Inc. | Monitoring connectivity in ring networks |
| CN101827414A (en) * | 2010-03-26 | 2010-09-08 | 中兴通讯股份有限公司 | Method and device for finding mesh network loop path |
| CN102118291A (en) * | 2011-03-25 | 2011-07-06 | 华为技术有限公司 | Ring network link failure processing method, device and ring network |
-
2012
- 2012-06-05 CN CN201210182984.0A patent/CN103457756B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217539A (en) * | 2007-12-29 | 2008-07-09 | 杭州华三通信技术有限公司 | A firewall device and method for treatment of secondary forwarding message |
| US20100172245A1 (en) * | 2009-01-07 | 2010-07-08 | Alcatel-Lucent Usa Inc. | Monitoring connectivity in ring networks |
| CN101827414A (en) * | 2010-03-26 | 2010-09-08 | 中兴通讯股份有限公司 | Method and device for finding mesh network loop path |
| CN102118291A (en) * | 2011-03-25 | 2011-07-06 | 华为技术有限公司 | Ring network link failure processing method, device and ring network |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119777A (en) * | 2015-09-07 | 2015-12-02 | 烽火通信科技股份有限公司 | Link loopback detection method in passive optical network (PON) system |
| CN105119777B (en) * | 2015-09-07 | 2019-01-25 | 烽火通信科技股份有限公司 | A method of the link loopback detection in PON system |
| CN105721297A (en) * | 2016-01-28 | 2016-06-29 | 北京国电通网络技术有限公司 | Routing loop detecting method and system based on SDN |
| CN105721297B (en) * | 2016-01-28 | 2019-04-09 | 北京国电通网络技术有限公司 | Detection method and system based on route loop in SDN network |
| CN106789625A (en) * | 2016-12-26 | 2017-05-31 | 北京华为数字技术有限公司 | A kind of loop detecting method and device |
| CN106789625B (en) * | 2016-12-26 | 2021-02-23 | 北京华为数字技术有限公司 | Loop detection method and device |
| CN112187635A (en) * | 2019-07-01 | 2021-01-05 | 中兴通讯股份有限公司 | Message forwarding method and device |
| CN112187635B (en) * | 2019-07-01 | 2023-02-03 | 中兴通讯股份有限公司 | Message forwarding method and device |
| CN114257891A (en) * | 2021-12-22 | 2022-03-29 | 苏州盛科通信股份有限公司 | Method for controlling MAC drift in passive optical network and application |
| CN114301815A (en) * | 2021-12-30 | 2022-04-08 | 山石网科通信技术股份有限公司 | Broadcast storm processing method and device |
| CN114301815B (en) * | 2021-12-30 | 2024-03-15 | 山石网科通信技术股份有限公司 | Method and device for processing broadcast storm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103457756B (en) | 2016-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102333028B (en) | Method and communication equipment for sending messages by using layered bi-layer virtual private network | |
| US11086653B2 (en) | Forwarding policy configuration | |
| CN101815107B (en) | Method, system and equipment for managing address in Ethernet ring | |
| RU2612599C1 (en) | Control device, communication system, method for controlling switches and program | |
| US9001644B2 (en) | Ethernet virtual private network system for providing fast protection for access rings | |
| CN103457756B (en) | A kind of loop path detection, Apparatus and system | |
| CN100512148C (en) | Convergence method and device based on VPLS dual home full connection network | |
| CN104022953A (en) | Message forwarding method and device based on Open Flow | |
| CN102413060B (en) | User private line communication method and equipment used in VPLS (Virtual Private LAN (Local Area Network) Service) network | |
| CN102347889B (en) | Message forwarding method, system and device in H-VPLS (Hierarchical Virtual Private local area network service) | |
| CN104168184A (en) | Message forwarding method and device | |
| US20100085982A1 (en) | Optimized Synchronization of Mac Address Tables in Network Interconnection Apparatuses | |
| CN103259726A (en) | Method, device and system for storing and sending MAC address table entries | |
| CN101252503B (en) | Method and apparatus for switching traffic of looped network | |
| CN104811380A (en) | Method for transmitting traffic-guiding routing information and cleaning apparatus | |
| CN103401781A (en) | Access method and access device applied to TRILL (Transparent Interconnection of Lots of Links) network | |
| CN102326370B (en) | Message processing method, apparatus and system | |
| CN100518128C (en) | Multi-point to multi-point VPN interconnecting method, system and device in PBT network | |
| CN102281165A (en) | Fault detection method based on QoS, system and apparatus thereof | |
| CN105743780B (en) | Message transmitting method and device | |
| CN100499549C (en) | Apparatus and base station equipment for transmitting IP message in WiMAX network | |
| CN101729361B (en) | Method and device for processing message | |
| CN104009919A (en) | Message forwarding method and device | |
| CN103763196A (en) | Method and device for processing multicast source filtering entry | |
| CN103873339A (en) | Method and device for distributing virtual gateway router |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170511 Address after: 510640 Guangdong City, Tianhe District Province, No. five, road, public education building, unit 371-1, unit 2401 Patentee after: Guangdong Gaohang Intellectual Property Operation Co., Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: Huawei Technologies Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170622 Address after: 226000, Jiangsu, Nantong province Tongzhou District Ping Town Industrial Concentration Area Patentee after: "NANTONG CITY TONGZHOU DISTRICT MAICHANG TEXTILE CO., LTD." Address before: 510640 Guangdong City, Tianhe District Province, No. five, road, public education building, unit 371-1, unit 2401 Patentee before: Guangdong Gaohang Intellectual Property Operation Co., Ltd. |