Method and system for updating blocked port information

A port information and port technology, which is applied in the field of blocking port information update in the Ethernet ring network, and can solve the problem of repeated refresh of the node to which it belongs.

Inactive Publication Date: 2011-04-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the main purpose of the present invention is to provide a method and system for updating blocked port information, so that the blocked port information of the node to which the Ethernet ring protection link belongs can be updated in time, thereby solving the problem of ring protection when the Ethernet ring network is switched back. The problem of repeated refreshing of the node to which the link belongs

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  • Method and system for updating blocked port information
  • Method and system for updating blocked port information
  • Method and system for updating blocked port information

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Embodiment

[0046] Example: such as image 3 Shown is a flow chart of the method for updating blocked port information of the present invention in a switchback scenario, including the following steps:

[0047] Step 101: The faulty link of the Ethernet ring network is restored or other protection switching requests are cleared.

[0048] Step 102: The node to which the ring protection link of the Ethernet ring network belongs starts a waiting recovery timer and enters a suspended state.

[0049] Step 103: The node to which the ring protection link of the Ethernet ring network belongs is in a suspended state, and waits for the recovery timer to expire.

[0050] Step 104: The node to which the ring protection link of the Ethernet ring network belongs blocks an adjacent port of the ring protection link, and sends a ring protection link blocking protocol frame to notify other nodes to switch back. Wherein, other nodes refer to: other nodes to which the ring protection link of the non-Ethernet...

example

[0054] Example: Figure 4 For the Ethernet ring network topology diagram of the present invention, a link failure occurs between nodes S2 and S3. After the link is restored, the node S1 to which the ring protection link belongs starts the waiting recovery timer and enters a suspended state. The node S1 is in the Suspend the state and wait for the recovery timer to expire, then switch back, first block the adjacent port 11 of the ring protection link, send a ring protection link blocking protocol frame to notify other nodes to switch back, and the nodes contained in the ring protection protocol frame number is 1, and the index number of the blocked port is 0. Node S1 updates the refresh record information of port 11 to its own node number 1 and the index number 0 of port 11. When node S1 receives the ring protection protocol frame sent by itself, it passes In contrast, the node number and port index number included in the protocol frame are consistent with the refresh record in...

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Abstract

The invention discloses a method for updating blocked port information. The method comprises that: the node of a ring protection link of an Ethernet ring is in a suspended state, and after a waiting recovery timer is exhausted, the node of the ring protection link of the Ethernet ring updates the refresh record information of an adjacent port of the ring protection link into information for identifying a blocked port of the node of the ring protection link of the Ethernet ring. The invention also discloses a system for updating the blocked port information. In the system, an updating unit is used for the node of the ring protection link of the Ethernet ring to update the refresh record information of the adjacent port of the ring protection link into the information for identifying the blocked port of the node of the ring protection link of the Ethernet ring. The method and the system can update the blocked port information of the Ethernet ring protection link in time, and can solve the problem of repeated refresh of the node of the ring protection link when the Ethernet ring is switched back.

Description

technical field [0001] The invention relates to an update technology in Ethernet protection, in particular to a method and system for updating blocked port information in an Ethernet ring network. Background technique [0002] With the development of Ethernet in the direction of multi-service bearing, especially some services have higher and higher requirements on network reliability and real-time performance, Ethernet widely adopts ring networking to improve network reliability. And in the protection scheme of this ring networking, it is usually required that the fast protection switching can reach less than 50 ms. Currently, this fast protection switching technology can be implemented based on the G.8032 protocol of the International Telecommunication Union (ITU-T, International Telecommunication Union). [0003] Based on the above-mentioned G.8032 protocol, an automatic protection switching protocol and mechanism are defined for the Ethernet layer of the ring topology Et...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/437
CPCH04L12/437H04L12/462
Inventor 吴少勇
Owner ZTE CORP
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