CN101247306A - Method for edge port block in ethernet ring, ethernet ring system and device - Google Patents
Method for edge port block in ethernet ring, ethernet ring system and device Download PDFInfo
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- 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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Abstract
The invention discloses a method for blocking edge port in Ethernet ring network, Ethernet ring network system and equipment, belonging to the communication field. The method comprises: after receiving the main ring fault notice message transmitted by an auxiliary edge node, an edge node checks the number of the edge port; unblocking the edge port when the edge port has a number of one; selecting one edge port from multiple edge ports unblocked and blocking unselected edge port when the edge port has more than one; the edge node and auxiliary edge node of the system. The equipment comprises a main ring fault detection module and an edge port block module. When the main ring has multi-point fault, one edge port is unblocked and other edge ports are blocked, thereby ensuring the normal transmission of business flow and preventing broadcasting ring circuit.
Description
Technical field
The present invention relates to the communications field, method, Ethernet ring network system and the equipment of edge port block in particularly a kind of ethernet ring network.
Background technology
RRPP (Rapid Ring Protection Protocol; looped network is protected agreement fast) be a link layer protocol that is specifically applied to ethernet ring network; it can prevent the broadcast storm that data loopback causes in ethernet ring network; when a link disconnects on the ethernet ring network, can enable backup link rapidly to recover the communication link between each node on the looped network.
In the RRPP agreement, support RRPP phase cross ring networking mode, referring to the RRPP networking schematic diagram that Fig. 1 provides, wherein, the ring that node 1, node 2, node 3 and node 4 are formed is a main ring, the ring that node 3, node 4, node 5 and node 6 are formed is subring; Host node is all arranged in main ring and the subring, in Fig. 1, be respectively node 1 and node 5, two nodes (node 3 and node 4) that main ring and subring are intersected are Edge node and assistant edge node, host node cycle ground sends Hello (health detection) message audit loop network link state from its master port, if this host node is received the hello packet that oneself sends from its secondary port, illustrate that loop network link is complete, host node blocks secondary port to prevent to broadcast loop; If in official hour, do not receive hello packet, the loop network link fault is described, this host node is moved to Failed (fault) state, and the open auxiliary port is to guarantee that each node communication is not interrupted on the looped network.
For common networking structure, above-mentioned testing mechanism can not form the broadcasting loop, but usually dual-homing networking in the actual networking, RRPP networking schematic diagram as shown in Figure 2, two dual-homed subring R2 are connected by fringe node with R3, itself just form a ring, after main ring R1 breaks down, the secondary port of the host node of all subrings is decontroled, form the broadcasting loop between the subring, in order to solve this defective, introduced subring protocol massages channel status testing mechanism on the main ring in the prior art, this mechanism is briefly described as follows:
The fringe node of subring periodically sends Edge-Hello (main ring integrity checking) message to the assistant edge node, the assistant edge node utilizes the Edge-Hello message to judge channel status, the assistant edge node detection is had no progeny in subring protocol massages passage, send Major-Fault (main ring signalling trouble) message to fringe node immediately, after fringe node is received Major-Fault, the edge port that blocks oneself, the subring host node is because the main ring fault causes subring protocol massages passage to interrupt, can not receive the hello packet that oneself sends at the appointed time, so move to the Failed state, decontrol secondary port;
Behind the main ring link-recovery, communication recovery between Edge node and assistant edge node, subring protocol massages routing restoration is normal, the subring host node is received the hello packet that oneself sends from secondary port, thereby switch to Complete (complete) state, therefore block secondary port, the subring host node can send Complete-Flush-FDB (database refresh) message from master port, and fringe node is decontroled edge port after receiving this message.
On the main ring that the inventor finds to provide in the prior art in the subring protocol massages channel status testing mechanism:
For the RRPP networking that has subring, if the multiple spot fault appears in main ring, or the assistant edge node is not received subring Edge-Hello message, in order to prevent to broadcast loop, the edge port that will block fringe node, and many subrings situation lower limb node will block all edge ports, can cause the node in the subring to be isolated, can't E-Packet, also can't with the business intercommunication on the main ring.
Summary of the invention
The embodiment of the invention provides method, Ethernet ring network system and the equipment of edge port block in a kind of ethernet ring network, has prevented that the subring node that causes because of the main ring fault is isolated, the message forwarding is obstructed, and described technical scheme is as follows:
The embodiment of the invention provides the method for edge port block in a kind of ethernet ring network, described ethernet ring network comprises main ring and subring, and described main ring and subring intersect at two nodes, and one in described two nodes is fringe node, another is the assistant edge node, and described method comprises:
After fringe node is received the main ring signalling trouble message of assistant edge node transmission, check the number of edge port, described edge port is for only inserting the port of subring;
When the number of described edge port is one, do not block described edge port;
When the number of described edge port when being a plurality of, from a plurality of edge ports, select an edge port not block, with not selected edge port block.
The embodiment of the invention also provides a kind of Ethernet ring network system, described system comprises main ring and subring, described main ring and subring intersect at two nodes, one in described two nodes is fringe node, and another is the assistant edge node, described fringe node, be used for sending main ring integrity checking message to the assistant edge node, after receiving the main ring signalling trouble message that described assistant edge node sends, check the number of edge port, described edge port is for only inserting the port of subring; When the number of described edge port is one, do not block described edge port; When the number of described edge port when being a plurality of, from a plurality of edge ports, select an edge port not block, with not selected edge port block;
Described assistant edge node is used to judge the main ring integrity checking message of whether receiving that in Preset Time described fringe node sends, if do not receive, sends main ring signalling trouble message to described fringe node.
Further, the embodiment of the invention also provides a kind of equipment, and described equipment is main ring and the crossing fringe node of subring in the ethernet ring network, comprising:
The main ring fault detection module is used for after receiving the main ring signalling trouble message that the assistant edge node sends, and confirms that main ring breaks down;
The edge port block module is used for after described main ring fault detection module is confirmed described main ring fault, checks the number of edge port, and described edge port is for only inserting the port of subring; When the number of described edge port is one, do not block described edge port; When the number of described edge port when being a plurality of, from a plurality of edge ports, select an edge port not block, with not selected edge port block.
When present embodiment breaks down when main ring, fringe node can be according to the actual number of edge port, keeping an edge port does not stop up, be used for the professional normal transmission in main ring and the subring, and stop up other edge port, prevent to broadcast loop, improved the troubleshooting capability of ethernet ring network, have very high practicality.
Description of drawings
Fig. 1 is the RRPP networking schematic diagram that prior art provides;
Fig. 2 is the dual-homed RRPP networking schematic diagram that prior art provides;
Fig. 3 is the dual-homed RRPP networking schematic diagram that the embodiment of the invention 1 provides;
Fig. 4 is the method flow diagram that edge port stops up in the ethernet ring network that provides of the embodiment of the invention 1;
The schematic diagram of transport service flow when Fig. 5 is the RRPP networking main ring multiple spot fault of Fig. 1 of providing of the embodiment of the invention 1;
Fig. 6 is the Ethernet ring network system schematic diagram that the embodiment of the invention 2 provides;
Fig. 7 is the equipment schematic diagram that the embodiment of the invention 3 provides.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
The embodiment of the invention breaks down at main ring, be that fringe node is received the Major-Fault message (main ring signalling trouble message) that the assistant edge node sends, fringe node does not stop up by keeping an edge port, has guaranteed professional normal transmission, and has prevented the broadcasting loop.Wherein, edge port is the port that fringe node only inserts subring, and the port that had not only inserted subring on the fringe node but also inserted main ring is a public port.
Embodiment 1
Present embodiment provides the method for edge port block in a kind of ethernet ring network, and this ethernet ring network comprises main ring and subring, and main ring and subring intersect at two nodes, and one in two nodes is fringe node, and another is the assistant edge node, and this method comprises:
1) after fringe node is received the Major-Fault message (main ring signalling trouble message) of assistant edge node transmission, checks the number of edge port;
2) when the number of edge port is one, do not block this edge port;
3) when the number of edge port when being a plurality of, from a plurality of edge ports, select an edge port not block, with not selected edge port block.
Wherein, above-mentioned fringe node can periodically send the Edge-Hello message to the assistant edge node, when the assistant edge node is not received the Edge-Hello message in the default time, will think that the main ring link breaks down, send the Major-Fault message by subring chain road direction fringe node.
Following ethernet ring network is that the ethernet ring network of dual-homed structure is an example, simply introduces the method for edge port block in the ethernet ring network that present embodiment provides, and the RRPP dual-homing networking structure that provides with Fig. 3 is an example, and referring to Fig. 4, this method comprises:
101: fringe node periodically sends the Edge-Hello message to the assistant edge node;
This Edge-Hello message only sends by the link on the main ring (comprising common link), in order to check the link circuit condition on the main ring;
102: the assistant edge node judges whether receive the Edge-Hello message in Preset Time, if, illustrate that the main ring link is normal, carry out 103; Otherwise, carry out 104;
103: the assistant edge node is received the Edge-Hello message, and being considered as main ring is health status, does not carry out any processing;
In the networking structure in the present embodiment, because two place's faults have appearred in main ring, be respectively the link failure (being common link fails) of Edge node and assistant edge node, the internodal link failure of main ring host node and assistant edge (being non-common link fails), therefore, the assistant edge node can not receive the Edge-Hello message in Preset Time, therefore carry out 104; When causing the assistant edge node normally not receive the Edge-Hello message owing to other reason (for example the load on the main ring is overweight), the assistant edge node also can be thought the main ring link failure, carries out 104;
104: send the Major-Fault message by subring chain road direction fringe node, notice fringe node main ring link failure;
105: after fringe node is received the Major-Fault message of assistant edge node transmission, check the number of edge port;
106: whether fringe node judges edge port greater than 1 according to the result who checks, if carry out 107; Otherwise, carry out 108;
The edge port number of fringe node is 2 in the present embodiment, therefore carries out 107;
107:, from a plurality of edge ports, select an edge port not block, with not selected edge port block when the number of edge port when being a plurality of.
108: when the number of edge port is one, do not block this edge port.
After finishing above-mentioned processing, the subring host node can not be received the hello packet that oneself sends at the appointed time because the main ring fault causes subring protocol massages passage to interrupt, so move to the Failed state, decontrols secondary port;
Behind the main ring link-recovery, communication recovery between Edge node and assistant edge node, subring protocol massages routing restoration is normal, the subring host node is received the hello packet that oneself sends from secondary port, thereby switch to Complete (complete) state, therefore block secondary port, the subring host node can send Complete-Flush-FDB (database refresh) message from master port, and fringe node is decontroled edge port after receiving this message.
When the networking structure of ethernet ring network is a RRPP networking structure shown in Figure 1, when if as shown in Figure 5 fault appears in this networking structure, according to said method, fringe node is 1 with the number of checking out edge port, therefore keep this edge port and do not stop up, also can not cause the broadcasting loop, and, can guarantee that original service traffics do not interrupt, by the link transmission of the indication of the direction of arrow among Fig. 5.
A plurality of subrings are arranged in this ethernet ring network, and have at least two subrings to intersect at different nodes with main ring, will have a plurality of Edge node and assistant edge node, this networking structure also is applicable to said method.
Present embodiment breaks down at the main ring link, the common link fails of main ring and subring for example, and when main ring has the non-common link fails of one or more, do not stop up by edge port on the preserving edge node, prevented that the subring node that causes because of main ring multiple spot fault is isolated, message is transmitted obstructed problem, and having prevented the broadcasting loop effectively, the disposal ability when having improved the ethernet ring network fault has practicality.
Embodiment 2
Referring to Fig. 6, present embodiment provides a kind of Ethernet ring network system, and this ethernet ring network comprises main ring and subring, and main ring and subring intersect at two nodes, and one in two nodes is fringe node, and another is the assistant edge node, wherein,
Fringe node is used for sending main ring integrity checking message to the assistant edge node, after receiving the main ring signalling trouble message that the assistant edge node sends, checks the number of edge port, and edge port is for only inserting the port of subring; When the number of edge port is one, do not block edge port; When the number of edge port when being a plurality of, from a plurality of edge ports, select an edge port not block, with not selected edge port block;
The assistant edge node is used to judge the main ring integrity checking message of whether receiving that in Preset Time fringe node sends, if do not receive, sends main ring signalling trouble message to fringe node.
Further, the host node in the subring comprises:
Secondary port is decontroled module, when being used for not receiving the health detection message that self sends in official hour, decontrols secondary port, by the edge port that do not get clogged in the fringe node and the main ring transport service of ethernet ring network.
When link-recovery just often, the host node in this subring also comprises:
The state handover module is used for switching to good working condition when receiving the health detection message that oneself sends from secondary port, blocks secondary port, sends the database refresh message from master port;
Correspondingly, fringe node also comprises:
Block and to cancel module, be used to receive the database refresh message after, decontrol the edge port that blocks.
The system that the Ethernet ring network system that present embodiment provides can be formed for the networking structure of various ethernet ring networks, the preferred Ethernet ring network system of present embodiment is the Ethernet ring network system of dual-homed structure.
When the Ethernet ring network system that present embodiment provides the multiple spot fault occurs when main ring, fringe node can be according to the actual number of edge port, keeping an edge port does not stop up, be used for the professional normal transmission in main ring and the subring, and stop up other edge port, prevent to broadcast loop, improved the troubleshooting capability of ethernet ring network, have very high practicality.
Embodiment 3
Referring to Fig. 7, present embodiment provides a kind of equipment, is main ring in the ethernet ring network and the crossing fringe node of subring, comprising:
The main ring fault detection module is used for after receiving the main ring signalling trouble message that the assistant edge node sends, and confirms that main ring breaks down;
The edge port block module is used for checking the number of edge port after the main ring fault detection module is confirmed the main ring fault, and wherein, edge port is for only inserting the port of subring; When the number of edge port is one, do not block this edge port; When the number of edge port when being a plurality of, from a plurality of edge ports, select an edge port not block, with not selected edge port block.
This equipment be in the ethernet ring network for fringe node, identical among the obstruction mode of its specific implementation edge port and the embodiment 2, detailed description no longer here.
When the equipment that present embodiment provides the multiple spot fault occurs when main ring, can be according to the actual number of edge port, keeping an edge port does not stop up, be used for the professional normal transmission in main ring and the subring, and stop up other edge port, prevent to broadcast loop, improved the troubleshooting capability of ethernet ring network, have very high practicality.
All or part of content in the technical scheme that above embodiment provides can realize that its software program is stored in the storage medium that can read by software programming, storage medium for example: the hard disk in the computer, CD or floppy disk.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the method for edge port block in the ethernet ring network is characterized in that described ethernet ring network comprises main ring and subring, described main ring and subring intersect at two nodes, one in described two nodes is fringe node, and another is the assistant edge node, and described method comprises:
After fringe node is received the main ring signalling trouble message of assistant edge node transmission, check the number of edge port, described edge port is for only inserting the port of subring;
When the number of described edge port is one, do not block described edge port;
When the number of described edge port when being a plurality of, from a plurality of edge ports, select an edge port not block, with not selected edge port block.
2. the method for edge port block is characterized in that in the ethernet ring network as claimed in claim 1, and described ethernet ring network is the ethernet ring network of dual-homed structure.
3. the method for edge port block is characterized in that in the ethernet ring network as claimed in claim 1, and described fringe node receives that the main ring signalling trouble message that the assistant edge node sends also comprises before:
Fringe node periodically sends main ring integrity checking message to described assistant edge node;
When described assistant edge node is not received described main ring integrity checking message in Preset Time, send main ring signalling trouble message to described fringe node.
4. the method for edge port block is characterized in that in the ethernet ring network as claimed in claim 1, and described method also comprises:
When the host node in the described ethernet ring network subring was not received the health detection message that self sends in official hour, the host node in the described subring was decontroled secondary port;
The main ring of described ethernet ring network is by the edge port that do not get clogged in the described fringe node and the subring transport service of described ethernet ring network.
5. the method for edge port block is characterized in that in the ethernet ring network as claimed in claim 4, and described method also comprises:
When described subring host node when secondary port is received the health detection message that oneself sends, switch to good working condition, block described secondary port, send the database refresh message from master port;
After described fringe node is received described database refresh message, decontrol the edge port that blocks.
6. Ethernet ring network system, described system comprises main ring and subring, and described main ring and subring intersect at two nodes, and one in described two nodes is fringe node, and another is the assistant edge node, it is characterized in that,
Described fringe node is used for sending main ring integrity checking message to the assistant edge node, after receiving the main ring signalling trouble message that described assistant edge node sends, checks the number of edge port, and described edge port is for only inserting the port of subring; When the number of described edge port is one, do not block described edge port; When the number of described edge port when being a plurality of, from a plurality of edge ports, select an edge port not block, with not selected edge port block;
Described assistant edge node is used to judge the main ring integrity checking message of whether receiving that in Preset Time described fringe node sends, if do not receive, sends main ring signalling trouble message to described fringe node.
7. Ethernet ring network system as claimed in claim 6 is characterized in that, the host node in the described subring comprises:
Secondary port is decontroled module, when being used for not receiving the health detection message that self sends in official hour, decontrols secondary port, by the edge port that do not get clogged in the described fringe node and the main ring transport service of described ethernet ring network.
8. Ethernet ring network system as claimed in claim 7 is characterized in that, the host node in the described subring also comprises:
The state handover module is used for switching to good working condition when receiving the health detection message that oneself sends from secondary port, blocks described secondary port, sends the database refresh message from master port;
Correspondingly, described fringe node also comprises:
Block and to cancel module, be used to receive described database refresh message after, decontrol the edge port that blocks.
9. Ethernet ring network system as claimed in claim 6 is characterized in that, described Ethernet ring network system is the Ethernet ring network system of dual-homed structure.
10. an equipment is characterized in that, described equipment is main ring and the crossing fringe node of subring in the ethernet ring network, comprising:
The main ring fault detection module is used for after receiving the main ring signalling trouble message that the assistant edge node sends, and confirms that main ring breaks down;
The edge port block module is used for after described main ring fault detection module is confirmed described main ring fault, checks the number of edge port, and described edge port is for only inserting the port of subring; When the number of described edge port is one, do not block described edge port; When the number of described edge port when being a plurality of, from a plurality of edge ports, select an edge port not block, with not selected edge port block.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101018609A CN101247306A (en) | 2008-03-13 | 2008-03-13 | Method for edge port block in ethernet ring, ethernet ring system and device |
| PCT/CN2009/070681 WO2009111969A1 (en) | 2008-03-13 | 2009-03-09 | Method for blocking the edge port in the ethernet, ethernet loop network system and apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101018609A CN101247306A (en) | 2008-03-13 | 2008-03-13 | Method for edge port block in ethernet ring, ethernet ring system and device |
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| CN101247306A true CN101247306A (en) | 2008-08-20 |
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| CNA2008101018609A Pending CN101247306A (en) | 2008-03-13 | 2008-03-13 | Method for edge port block in ethernet ring, ethernet ring system and device |
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| WO (1) | WO2009111969A1 (en) |
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| WO2009111969A1 (en) * | 2008-03-13 | 2009-09-17 | 华为技术有限公司 | Method for blocking the edge port in the ethernet, ethernet loop network system and apparatus |
| WO2010031211A1 (en) * | 2008-09-19 | 2010-03-25 | 中兴通讯股份有限公司 | Method for control channel configuration and message transmission in ethernet multiring network |
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| WO2011026347A1 (en) * | 2009-09-07 | 2011-03-10 | 中兴通讯股份有限公司 | Method for ethernet loop network protection and thransmission node |
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| CN101247306A (en) * | 2008-03-13 | 2008-08-20 | 华为技术有限公司 | Method for edge port block in ethernet ring, ethernet ring system and device |
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- 2009-03-09 WO PCT/CN2009/070681 patent/WO2009111969A1/en active Application Filing
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| CN102984027A (en) * | 2012-11-27 | 2013-03-20 | 华为技术有限公司 | Method and device for message loop detection |
| CN102984027B (en) * | 2012-11-27 | 2015-04-29 | 华为技术有限公司 | Method and device for message loop detection |
| CN105281936A (en) * | 2014-07-08 | 2016-01-27 | 上海博达数据通信有限公司 | Network structure of realizing ring network link backup based on multiple Ethernet ring networks |
| CN105281936B (en) * | 2014-07-08 | 2019-02-12 | 上海博达数据通信有限公司 | A kind of network structure for realizing loop network link backup based on more ethernet ring networks |
| CN108322395A (en) * | 2018-01-31 | 2018-07-24 | 普联技术有限公司 | A kind of message processing method, device and computer storage media, terminal device |
| CN113904975A (en) * | 2021-09-27 | 2022-01-07 | 北京东土科技股份有限公司 | Method, equipment and storage medium for realizing dual-homing link |
| CN114584421A (en) * | 2022-02-18 | 2022-06-03 | 新华三技术有限公司 | Communication method and device |
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| WO2009111969A1 (en) | 2009-09-17 |
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