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Method and system for configuration of OAM attribute of pseudowire

A technology of attribute configuration and configuration method, applied in transmission systems, digital transmission systems, electrical components, etc., can solve the problem that the configuration of PWOAM attributes has no implementation scheme.

Inactive Publication Date: 2012-01-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The documents draft-ietf-ccamp-oam-configuration-fwk and draft-ietf-ccamp-rsvp-te-mpls-tp-oam-ext cover the configuration of OAM attributes on the LSP, but the configuration of OAM attributes on the PW has not yet been implemented. Program

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  • Method and system for configuration of OAM attribute of pseudowire
  • Method and system for configuration of OAM attribute of pseudowire
  • Method and system for configuration of OAM attribute of pseudowire

Examples

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Embodiment 1

[0075] Embodiment 1: LDP configures PW OAM attributes

[0076] In this embodiment, the multi-segment pseudowire has one S-PE, see image 3 . T-PE1 initiates signaling to establish the MS-PW, and the LDP Mapping (mapping) message carries the relevant parameters of PW OAM capability negotiation and the relevant parameters of PW OAM attribute configuration. The process of PW OAM capability negotiation is as follows, refer to Figure 4 ,include:

[0077] According to the PW OAM capabilities it supports, T-PE1 tells the downstream S-PE and T-PE nodes that it supports these OAM capabilities. For example, T-PE1 can inform the downstream nodes of the supported CC (control channel) type and CV (connectivity verification) type in the VCCV capability notification; if T-PE1 supports PW status notification, it can The PW Status TLV is included in the message to inform the downstream node that it supports PW status notification. Here, MPLS-TP adds many new types to PW OAM, such as PM L...

Embodiment 2

[0100] Embodiment 2: LSP Ping configures PW OAM attributes

[0101] refer to Figure 5 , in this embodiment, the MS-PW is established dynamically or statically or a combination of dynamic and static, then after the MS-PW is successfully established, use LSP ping to configure the proactive OAM attribute.

[0102] In this solution, firstly, by default, the T-PE node has been configured with the MEP attribute, and the S-PE node has been configured with the MIP attribute. Then the T-PE1 node can send an LSP ping request (request) message to T-PE2, which can carry the MPLS-TP PW OAM capabilityTLV in Embodiment 1, and is used to communicate between the two nodes T-PE1 and T-PE2 Negotiate the OAM capability it supports, and T-PE2 feeds back the OAM capability it supports to node A in an LSP ping response (response) message.

[0103]Of course, each node can also support various OAM capabilities by default, and the negotiation process is not required; the capability negotiation can a...

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Abstract

The invention provides a configuration method for an operation administration and maintenance (OAM) attribute of a pseudowire (PW). The method comprises the following steps that: during a process of PW dynamic establishment, interaction signaling between provider edges (PE) is provided; a parameter related to OAM attribute configuration of the PW is carried in the signaling; and according to the parameter related to the OAM attribute configuration, a signaling receiver makes OAM attribute configuration be realized. In addition, the invention also provides a configuration system for the OAM attribute of the PW. According to the invention, newly-expanded negotiation of an OAM capability of a PW is increased and an OAM attribute configuration flow is added, so that a proactive OAM attribute of the PW is well configured during PW establishment through signaling and network management operation can be simplified.

Description

technical field [0001] The present invention relates to the field of data network communication, and in particular to a method for configuring pseudo-labels in MPLS (Multiple Protocol Label Switching, Multi-Protocol Label Switching) and MPLS-TP (Multiple Protocol Label Switching-Transport Profile, multi-protocol label switching based on transport network architecture) networks. Methods and systems for line OAM. Background technique [0002] With the development of IP data network, the scalability, upgradeability and compatibility and intercommunication capabilities of IP network itself are very strong, while the flexibility of upgrading, expansion and intercommunication of traditional communication networks is relatively poor, limited by transmission methods and The type of business, and the commonality of the newly built network is also poor, which is not suitable for intercommunication management. Therefore, in the process of upgrading and expanding applications of tradit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/56H04L29/06
CPCH04L43/0811H04L41/0677H04L41/0816H04L41/0886
Inventor 张飞
Owner ZTE CORP