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Method, system and equipment for protecting double-return switch-in RRPP loop network

A protection system and ring network technology, applied in the field of network communication, can solve problems such as poor performance of forwarding data traffic, and achieve the effects of ensuring normal forwarding, preventing interruption of data traffic, and fast switching

Inactive Publication Date: 2007-08-22
郓城县完美网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problem of poor performance of forwarding data traffic due to lack of corresponding forwarding table refresh mechanism in the prior art when RRPP and Ethernet OAM are mixed networking, the present invention implements The example provides a protection method, system and equipment for a dual-homing access RRPP ring network

Method used

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  • Method, system and equipment for protecting double-return switch-in RRPP loop network
  • Method, system and equipment for protecting double-return switch-in RRPP loop network
  • Method, system and equipment for protecting double-return switch-in RRPP loop network

Examples

Experimental program
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Embodiment 1

[0054] Referring to FIG. 4 , it is a flowchart of a protection method for a dual-homing access RRPP ring network. The method for protecting the RRPP ring network with dual-homing access includes the following steps:

[0055] Step 401: The Ethernet OAM primary link fails, and link switching is performed, from the primary link to the standby link.

[0056]Step 402: Notifying the RRPP system of the current Ethernet OAM link switching.

[0057] Step 403: After receiving the notification, the RRPP system judges whether the device connected to the Ethernet OAM faulty link is the master node of the RRPP ring, and if not, executes step 404; otherwise, executes step 405.

[0058] Step 404: The equipment connected to the Ethernet OAM failure link is a transit node, and this transit node constructs a new protocol message (TOPO-CHANGE message, topology change message), and notifies the master node by the TOPO-CHANGE message The topology is changed, and then step 405 is performed. In th...

Embodiment 2

[0063] In order to speed up the convergence of faults caused by Ethernet OAM link switching, the transit node not only forwards the TOPO-CHANGE normally, but also sends it to notify other nodes to delete the MAC entry in the MAC table and the ARP table where the RRPP port is located. ARP entry where the RRPP port resides. After the master node receives the TOPO-CHANGE message, in addition to deleting its own MAC entry and ARP entry, it will no longer notify each transit node to refresh its respective forwarding table.

[0064] Referring to FIG. 5 , it is a flowchart of another protection method for an RRPP ring network with dual-homing access. The method for protecting the RRPP ring network with dual-homing access in this embodiment includes the following steps:

[0065] Step 501: When the Ethernet OAM active link fails, link switching is performed, and the active link is switched to the standby link.

[0066] Step 502: Notifying the RRPP system of the current Ethernet OAM l...

Embodiment 3

[0075] Referring to FIG. 6 , it is a schematic diagram of a protection system for a dual-homed access RRPP ring network. This embodiment provides a protection system for a dual-homed access RRPP ring network, including:

[0076] The fault detection and switching module is used to detect whether the link of the Ethernet OAM fails, and performs link switching when a fault occurs;

[0077] The forwarding table refresh notification module is used to notify the nodes on the RRPP ring to refresh the forwarding table when the fault detection and switching module performs link switching;

[0078] The forwarding table refreshing module is configured to refresh the forwarding table after receiving the forwarding table refreshing notification sent by the forwarding table refreshing notification module.

[0079] In addition, when the equipment connected to the Ethernet OAM failure link is a transit node on the RRPP ring, a topology change message is added in the RRPP protocol, and the top...

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Abstract

A method for protecting diattribution access RRPP ring network includes updating retransmission table of itself and informing the other nodes on RRPP ring to update their retransmission tables by node connected with fault link when link switch-over of Ether-OAM is carried out. The protection device used for realizing said method is also disclosed.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a protection method, system and equipment for a dual-homing access RRPP ring network. Background technique [0002] RRPP (Rapid Ring Protection Protocol, Rapid Ring Protection Protocol) is a link layer protocol specially applied to the Ethernet ring. When the Ethernet ring is complete, it can prevent the broadcast storm caused by the data ring. When the last link is disconnected, the backup link can be activated quickly to restore the communication path between the nodes on the ring network. [0003] An RRPP ring physically corresponds to the Ethernet topology of a ring connection. See Figure 1, which is a schematic diagram of the complete state of the RRPP ring, where 4 is the master node of the RRPP ring, and 1, 2, 3, 5, and 6 are the transit nodes of the RRPP ring , 41 is the primary port of the primary node, and 42 is the secondary port of the primary node. In the compl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/42H04L12/24
Inventor 顾荣伟钱锋汪河川
Owner 郓城县完美网络科技有限公司
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