CN105281936A - Network structure of realizing ring network link backup based on multiple Ethernet ring networks - Google Patents
Network structure of realizing ring network link backup based on multiple Ethernet ring networks Download PDFInfo
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- CN105281936A CN105281936A CN201410322771.2A CN201410322771A CN105281936A CN 105281936 A CN105281936 A CN 105281936A CN 201410322771 A CN201410322771 A CN 201410322771A CN 105281936 A CN105281936 A CN 105281936A
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Abstract
The invention discloses a network structure of realizing a ring network link backup based on multiple Ethernet ring networks. The network structure supplements a network topology protection scheme which can not be solved by a single ring network and multiple ring networks. Through configuring a related node and/or port on a main ring link, a corresponding backup link is formed. In the invention, a MEAPS technology is used to complete to carry out backup on an EAPS ring network link so that a safe and effective network environment is provided.
Description
Technical field
The present invention relates to a kind of network communications technology, be specifically related to the control technology of broadcast storm in a kind of network service.
Background technology
Ethernet Circle protection agreement (EAPS) is a link layer protocol being specifically applied to Ethernet ring.The broadcast storm that data loopback causes should be prevented when Ethernet ring is complete, and when a link disconnects on Ethernet ring, backup link should be enabled rapidly to recover the communication path on looped network between each node.The role of switch is specified by configuration by user.
Many Ethernets Loop Protection agreement (MEAPS), on the basis of EAPS, supports conventional monocycle or secondary multi-ring networks framework: centre is convergence-level, is mainly built by ethernet ring network between convergence device, realizes switching fast; Outside is Access Layer, is mainly used between access device.Looped network not at the same level mainly adopts tangent or crossing mode to be connected.
A simple MEAPS structure as shown in Figure 1, by blocking the secondary port of main ring host node and subring host node, prevents the broadcast storm caused in looped network.Subring is linked in main ring by fringe node (Edge) and assistant edge node (Assistant), fringe node sends edge-hello message by main ring chain road direction assistant edge node, monitor the connectedness of link between Edge node and assistant edge node, between Edge node and assistant edge node, link is obstructed, now block the edge port (connecting the port to subring) of assistant edge node, to prevent the network configuration (as shown in Figure 2) of dual-homed ring.
As mentioned above, the control of MEAPS subring broadcast storm, at least needs 1 node to be configured to subring host node in subring; If there is no node in subring, then according to the mechanism of MEAPS, it is the generation that cannot prevent broadcast storm.
For this situation, providing a solution and produce broadcast storm to prevent this kind of network topology, is the problem that those skilled in the art need solution badly.
Summary of the invention
The present invention is directed in the existing network communication technology problem of the network topology generation broadcast storm that subring cannot be prevented without node, its object is to, a kind of network configuration solution realizing loop network link backup based on many ethernet ring networks is provided, with the supplementary safety management to various network topology structure and control, can prevent subring from producing broadcast storm without the network topology of node thus, thus one network environment is more safely and effectively provided.
In order to achieve the above object, the present invention adopts following technical scheme:
A kind of network configuration realizing loop network link backup based on many ethernet ring networks, main ring link will connect 2 nodes without node subring in this network configuration, Edge node and assistant edge node is configured to based on MEAPS, and the port arrangement of connection is become edge port, the backup link will be configured to without node subring on main ring link thus;
And under normal circumstances, block the edge port of assistant edge node; 2 links between Edge node and assistant edge node all break down, and now recover the port that backup link blocks, carry out looped network and switch, to ensure the normal operation of network.
In the preferred embodiment of this programme, the fringe node on main ring link sends edge-hello probe messages, to monitor the integrality of main ring by main ring port to assistant edge node; Assistant edge node receives edge-hello message, then block its edge port; If can not receive edge-hello message within a certain period of time, then think that 2 links between Edge node and assistant edge node all break down, recover its edge port.
For the above-mentioned network configuration realizing loop network link backup based on many ethernet ring networks, the present invention also provides another alternative, in the network configuration of this alternative, direct-connected 2 looped network nodes, giving their looped network port arrangement backup port respectively, is that these 2 direct-connected looped network node configurations form backup link by backup port; When normal port is linkup, backup port blocks; When normal port becomes the situation of linkdown, recover backup port, carry out looped network and switch, to ensure the normal operation of network.
Utilize such scheme can prevent subring from producing broadcast storm without the network topology of node; namely be equivalent to carry out link backup to common monocycle looped network; for the ring network structure of protection can be provided to supplement, thus provide one network environment more safely and effectively.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is simple MEAPS looped network protection structure;
Fig. 2 is the situation of the dual-homed generation broadcast storm of MEAPS looped network;
Fig. 3 is the network configuration example topology of solution in example 1 of the present invention;
For main ring in example shown in Fig. 3 there is network topological change example after 2 place's faults in Fig. 4;
Fig. 5 is the network configuration example topology of solution in example 2 of the present invention;
Fig. 6 is network topological change example after breaking down in example shown in Fig. 5.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
Example 1
The scheme that this example provides can effectively be supplemented in MEAPS network configuration, subnet does not have the situation of node, subnet is made to become a backup link on main ring link, major programme is on main ring, connect 2 nodes without the subring of node, as MEAPS, Edge node and assistant edge node will be configured to, the port arrangement connected becomes edge port, thus subnet is configured to a backup link on main ring link; And under normal circumstances, block the edge port of assistant edge node; 2 links between Edge node and assistant edge node all break down, and now recover the port that backup link blocks, carry out looped network and switch, to ensure the normal operation of network.
See Fig. 3, its be depicted as based on above-mentioned principle formed for preventing subring from producing the network configuration example topology figure of broadcast storm solution without the network topology of node.As seen from the figure, in the network configuration topology of this solution, 6 nodes are all the nodes on main ring, its interior joint 4 is configured to host node, its 2 looped network ports are configured to master port and time port respectively, and all the other Joint Enterprise become transmission node, and its looped network port is all configured to transmit port.For backup link 1, node 1 and 3 joins in subring 1, and configuration node 1 is the fringe node of subring 1, and configuration node 3 is the assistant edge node of subring 1; Similar, for backup link 2, node 5 and 6 joins in subring 1, and configuration node 5 is the fringe node of subring 2, and configuration node 6 is the assistant edge node of subring 2.
Under normal circumstances, on main ring, the master port of host node sends hello packet, each node on main ring, finally get back to the secondary port of host node, after secondary port receives hello packet, think that looped network is complete, secondary port is blocked, prevents main ring from producing broadcast storm; Assistant edge node in subring (backup link) can receive the edge-hello message that fringe node is sent by main ring link, blocks the edge port of assistant edge node, prevents subring (backup link) from broadcast storm occurring.
When link failure occurs in subring (backup link), for main link without impact, network topology does not also change.When one place's fault occurs main ring link, main ring host node detects this event, then recover the obstruction of host node time port, the looped network carrying out main ring is switched, to maintain the normal operation of network; Main ring in that case, there occurs place's fault again, as shown in Figure 4, now, the assistant edge node (node 3) be connected with subring 1 (backup link 1) does not receive the edge-hello message sent from fringe node (node 1), recover the obstruction of assistant edge node edge port, the looped network carrying out subring 1 is switched, to maintain the normal operation of network.
When fault (place's fault) on main ring is recovered, assistant edge node (node 3) can receive again the edge-hello message sent from fringe node (node 1), for preventing broadcast storm, block the edge port of assistant edge node; When other place's fault is also recovered, the host node on main ring detects that looped network recovers normal, blocks the secondary port of host node, to prevent broadcast storm.
Example 2
The scheme that this example provides, by direct-connected 2 looped network nodes, gives their looped network port arrangement backup port respectively, then is that these 2 direct-connected looped network nodes configurations form backup link by backup port;
And when normal port is linkup, backup port blocks; When normal port becomes the situation of linkdown, recover backup port, carry out looped network and switch, to ensure the normal operation of network.
The arrangements that this example provides is at direct-connected node, and its operation is simpler.
See Fig. 5, its be depicted as based on above-mentioned principle formed for preventing subring from producing the network configuration example topology figure of broadcast storm solution without the network topology of node.As seen from the figure, in the network configuration topology of this solution, 6 nodes are all in looped network, and its interior joint 4 is configured to host node, and its 2 looped network ports are configured to master port and time port respectively; All the other are configured to transmission node, and its looped network port is all configured to transmit port.Node 2 and node 3 are direct-connected, and giving their looped network port arrangement backup port respectively, is direct node 2 and node 3 configuration backup link 1 by backup port; In like manner, be configured with backup link 2 for node 5 and node 6 again, connect the backup port of port as generic link of backup link.
Under normal circumstances, on main ring, the master port of host node sends hello packet, each node on main ring, finally get back to the secondary port of host node, after secondary port receives hello packet, think that looped network is complete, secondary port is blocked, prevents main ring from producing broadcast storm; Connect the backup port of backup link, when common port is normal, block, prevent subring (backup link) from broadcast storm occurring.
As shown in Figure 6, when the normal link that backup link 1 is relative breaks down, recover the obstruction to backup port, switch loop network link on backup link, to maintain the normal operation of network; And when looped network not having the link occurs fault of backup link, host node recovering the obstruction of time port, carrying out looped network and switching, to maintain the normal operation of network, and to other backup link without any association.
When the normal link that backup link 1 is relative carries out fault recovery, block backup port, switch loop network link in normal link; And when looped network not having the link of backup link carry out fault recovery, the host node on main ring detects that looped network recovers normal, block the secondary port of host node, to prevent broadcast storm.
In above-mentioned two examples, the network instruction plan of the loop network link backup that example 2 provides can realize carrying out link backup to direct-connected 2 adjacent nodes, and the network instruction plan of the loop network link backup that example 1 provides can carry out link backup by cross-node.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (3)
1. one kind realizes the network configuration of loop network link backup based on many ethernet ring networks, it is characterized in that, main ring link will connect 2 nodes without node subring in described network configuration, Edge node and assistant edge node is configured to based on MEAPS, and the port arrangement of connection is become edge port, the backup link will be configured to without node subring on main ring link thus;
And under normal circumstances, block the edge port of assistant edge node; 2 links between Edge node and assistant edge node all break down, and now recover the port that backup link blocks, carry out looped network and switch, to ensure the normal operation of network.
2. according to the said a kind of network configuration realizing loop network link backup based on many ethernet ring networks of claim 1, it is characterized in that, fringe node on main ring link sends edge-hello probe messages, to monitor the integrality of main ring by main ring port to assistant edge node; Assistant edge node receives edge-hello message, then block its edge port; If can not receive edge-hello message within a certain period of time, then think that 2 links between Edge node and assistant edge node all break down, recover its edge port.
3. one kind realizes the network configuration of loop network link backup based on many ethernet ring networks, it is characterized in that, in described network configuration, direct-connected 2 looped network nodes, giving their looped network port arrangement backup port respectively, is that these 2 direct-connected looped network node configurations form backup link by backup port; When normal port is linkup, backup port blocks; When normal port becomes the situation of linkdown, recover backup port, carry out looped network and switch, to ensure the normal operation of network.
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| CN103746912A (en) * | 2014-01-03 | 2014-04-23 | 杭州华三通信技术有限公司 | Data message transmission method and equipment based on subring link |
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| CN1960310A (en) * | 2006-11-01 | 2007-05-09 | 华为技术有限公司 | Method and system of realizing rig network protection |
| CN101075935A (en) * | 2007-06-27 | 2007-11-21 | 华为技术有限公司 | Method, system and apparatus for realizing loop protection |
| 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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Application publication date: 20160127 Assignee: Shanghai Puchuang Longke Finance Leasing Co.,Ltd. Assignor: SHANGHAI BAUD DATA COMMUNICATION Co.,Ltd. Contract record no.: X2020980003092 Denomination of invention: Network structure of realizing ring network link backup based on multiple Ethernet ring networks Granted publication date: 20190212 License type: Exclusive License Record date: 20200615 |
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Denomination of invention: Network structure of realizing ring network link backup based on multiple Ethernet ring networks Effective date of registration: 20200615 Granted publication date: 20190212 Pledgee: Shanghai Puchuang Longke Finance Leasing Co.,Ltd. Pledgor: SHANGHAI BAUD DATA COMMUNICATION Co.,Ltd. Registration number: Y2020980003093 |
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Assignee: Shanghai Puchuang Longke Finance Leasing Co.,Ltd. Assignor: SHANGHAI BAUD DATA COMMUNICATION Co.,Ltd. Contract record no.: X2020980003092 Date of cancellation: 20210809 |
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Date of cancellation: 20210809 Granted publication date: 20190212 Pledgee: Shanghai Puchuang Longke Finance Leasing Co.,Ltd. Pledgor: SHANGHAI BAUD DATA COMMUNICATION Co.,Ltd. Registration number: Y2020980003093 |