Method, system and node for transmitting operation management and maintenance packet of ethernet

一种传输方法、传输系统的技术，应用在PBT网络的连接维护领域，能够解决报文无法正常返回等问题

Inactive Publication Date: 2008-05-14
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in PBT, due to the different identifiers of the two-way paths, especially the VLAN ID may be different, and for nodes in PBT, the processing method for unknown packets is not broadcasting but discarding, so if the OAM method of Ethernet is adopted, in PBT Messages in the network may not be returned normally

Method used

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  • Method, system and node for transmitting operation management and maintenance packet of ethernet
  • Method, system and node for transmitting operation management and maintenance packet of ethernet
  • Method, system and node for transmitting operation management and maintenance packet of ethernet

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Embodiment one, when adopting image 3 In the OAM structure of the PBT network shown, it is assumed that CC detection from B to D with an MEL of 3 is required, and the destination MAC address in the OAM message sent by the source node is the MAC address identified by the path where the monitored service is located, the present invention Embodiment comprises the following steps:

[0048] In step s101, the destination node D configures the time interval t for sending the MEP list and the CCM (Continuity Check Message, continuity check message).

[0049] Step s102, the source node B initiates CC detection, generates a CCM message at each time t, and sends the message to the destination node D; the message includes:

[0050] Destination MAC address: the MAC address identified by the path where the monitored service is located. Since there is no path identifier from B to D, but the path is part of the path A to H, in the CCM message, the destination MAC address is the MAC a...

Embodiment 2

[0063] Embodiment two, when adopting image 3 In the OAM structure of the PBT network shown, it is assumed that CC detection from B to D with an MEL of 3 is required, and the destination MAC address in the OAM message sent by the source node is a MAC address dedicated to the OAM function, the embodiment of the present invention includes The following steps:

[0064] In step s201, the destination node D configures the MEP list and the time interval t for sending the CCM.

[0065] In step s202, the source node B initiates CC detection, generates a CCM message at each time t, and sends the message to the destination node D; the message includes:

[0066] Destination MAC address: a MAC address dedicated to the OAM function, placed in the forwarding table of the bridge supporting the OAM method, and its forwarding table entry directly points to the OAM processing unit of the bridge;

[0067] VLAN ID: the virtual local area network identifier of the route where the monitored servi...

Embodiment 3

[0081] Embodiment three, when adopting image 3 In the OAM structure of the PBT network shown, it is assumed that LB detection from A to D with MEL of 4 is required, and the destination MAC address in the OAM message sent by the source node is the MAC address of the path identifier where the monitored service is located, the present invention Embodiment comprises the following steps:

[0082] In step s301, the source node A initiates LB detection, generates an LBM message, and sends the message to the destination node D; the message includes:

[0083] Destination MAC address: the MAC address identified by the path where the monitored service is located. Since there is no path identifier from A to D, but the path is part of the path A to H, in the LBM message, the destination MAC address is the MAC address of H MAC(H), not D's MAC address;

[0084] VLAN ID: the virtual local area network identifier of the path where the monitored service is located. Since there is no path ide...

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Abstract

The invention discloses a transmission method used for an operation management and maintenance message of an Ethernet. The method includes the following steps: an original node transmits an OAM message, and a receiving node judges whether a connection maintenance termination address is matched with current node address; and if matched, the message is terminated; otherwise, the message is transmitted according to a router mark. The invention also discloses the transmission method used for an operation management and maintenance message of an Ethernet. The method includes the following steps: the first node receives an OAM message; the first node transmits an OAM returning message; the second node transmits the OAM returning message. The invention also discloses the transmission system used for the operation management and maintenance message of the Ethernet, the transmission node of the operation management and maintenance message of the Ethernet and the receiving node of the operation management and maintenance message of the Ethernet. The OAM message of the invention is transmitted according to the monitored MAC of the service router mark and a VLAN ID message, and is able to transmit the OAM message in a PBT network.

Description

technical field [0001] The present invention relates to the technical field of network maintenance, in particular to a connection maintenance method, system and node of a PBT (Provider Backbone Transport, operator backbone transport) network. Background technique [0002] PBT is a carrier-class Ethernet solution. Compared with traditional Ethernet, this solution removes the self-learning, spanning tree and flooding mechanisms, and uses the management plane or control plane to issue forwarding tables to establish paths. Different from the traditional connectionless Ethernet, PBT is a connection-oriented technology, that is, the connection is established before the service is opened. [0003] In PBT, use destination MAC (Medium Access Control, media access control) address and VLAN (Virtual Local Area Network, virtual local area network) ID (Identifier, mark) to mark a one-way connection; The forwarding of PBT message is based on If the destination MAC address and VLANID in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/24
CPCH04L41/06H04L12/4641H04L43/0811
Inventor 龙昊邓柱升
Owner HUAWEI TECH CO LTD
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