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Method and device for switching OAM (Operations, Administration and Maintenance) between MPLS (Multiple-Protocol Label Switching) and MPLS-TP (Multiple-Protocol Label Switching-Transport Profile)

A conversion module and purpose technology, applied in the field of communication, can solve the problems of not providing MPLS and MPLS-TPOAM conversion implementation solutions, etc.

Active Publication Date: 2011-07-27
FENGJIE DONGYANG BUILDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In actual network deployment, MPLS and MPLS-TP may coexist at the same time. At this time, OAM conversion between MPLS and MPLS-TP needs to be realized, but the existing technology does not provide an implementation solution for OAM conversion between MPLS and MPLS-TP.

Method used

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  • Method and device for switching OAM (Operations, Administration and Maintenance) between MPLS (Multiple-Protocol Label Switching) and MPLS-TP (Multiple-Protocol Label Switching-Transport Profile)
  • Method and device for switching OAM (Operations, Administration and Maintenance) between MPLS (Multiple-Protocol Label Switching) and MPLS-TP (Multiple-Protocol Label Switching-Transport Profile)
  • Method and device for switching OAM (Operations, Administration and Maintenance) between MPLS (Multiple-Protocol Label Switching) and MPLS-TP (Multiple-Protocol Label Switching-Transport Profile)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment provides a method for OAM conversion between MPLS and MPLS-TP, such as figure 2 As shown, the method includes:

[0029] 201. Receive the MPLS-TP OAM message sent by the MPLS-TP node, wherein the MPLS-TP OAM message includes an LSP label, a GAL (General Alert Label, general alarm label) field, and an ACH (Associated Channel Header, associated channel header ) field and MPLS-TP OAM PDU (Packet Data Unit, packet data unit) field. Wherein, the MPLS-TP OAM message can be an MPLS-TP LSP Ping message or an MPLS-TP BFD message, etc., and the MPLS-TP OAM PDU field can be an MPLS-TP LSP Ping PDU field or an MPLS-TP BFD PDU fields, etc.

[0030] 202. Acquire first conversion information according to the MPLS-TP OAM packet, where the first conversion information includes an IP source address and a UDP source port number.

[0031] Wherein, said obtaining the first conversion information according to the MPLS-TP OAM message includes:

[0032] Finding the first co...

Embodiment 2

[0048] This embodiment provides a method for OAM conversion between MPLS and MPLS-TP. The interconnection scenario between MPLS and MPLS-TP is as follows figure 1 As shown, in this scenario, OAM conversion needs to be realized between MPLS and MPLS-TP. In this embodiment, the realization of LSP Ping (Packet Internet Groper, Internet packet explorer) conversion between MPLS and MPLS-TP is an example .

[0049] Such as image 3 As shown, node A is an MPLS-TP node, node B is an IWF (Inter-Working Function, interoperability function) node, and node C is an MPLS node. Node A is the source end of the LSP ping operation, and node C is the sink end of the LSPPing operation. LSP 1 between node A and node C needs to be detected. The interoperability function node is a node that converts the OAM message.

[0050] The method for OAM conversion between the MPLS and MPLS-TP includes:

[0051] 301. Node A sends an MPLS-TP LSP Ping request message to Node B. The MPLS-TP LSP Ping request m...

Embodiment 3

[0133] This embodiment provides a method for OAM conversion between MPLS and MPLS-TP. The interconnection scenario between MPLS and MPLS-TP is as follows figure 1 As shown, in this scenario, OAM conversion needs to be implemented between MPLS and MPLS-TP. In this embodiment, the implementation of BFD (Bidirectional Forwarding Detection, bidirectional forwarding detection) conversion between MPLS and MPLS-TP is taken as an example.

[0134]Such as Figure 4 As shown, node A is an MPLS-TP node, node B is an IWF node, and node C is an MPLS node. LSP 1 between node A and node C needs to be detected. In the uplink direction, node A initiates BFD connectivity detection to node C; in the downlink direction, node C initiates BFD connectivity detection to node A.

[0135] When performing connectivity detection in the uplink direction, the method for OAM conversion between the MPLS and MPLS-TP includes:

[0136] 401. Node A sends an MPLS-TP BFD message to node B, where the MPLS-TP BF...

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Abstract

The embodiment of the invention discloses a method and device for switching OAM (Operations, Administration and Maintenance) between MPLS (Multiple-Protocol Label Switching) and MPLS-TP (Multiple-Protocol Label Switching-Transport Profile). The method comprises the following steps of: receiving an MPLS-TP OAM message sent by an MPLS-TP node, wherein the MPLS-TP OAM message contains an LSP (Label Switch Path) label, a GAL (General Alert Label) field, an ACH (Associated Channel Header) field and an MPLS-TP OAM PDU (Packet Data Unit) field; acquiring first switching information according to the MPLS-TP OAM message, wherein the first information contains an IP source address and a UDP source port number; converting the MPLS-TP OAM message into an MPLS OAM message according to the first switching information; and sending the MPLS OAM message to an MPLS node. The method and device disclosed by the invention are applicable to OAM switching between the MPLS and the MPLS-TP.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for OAM conversion between MPLS and MPLS-TP. Background technique [0002] MPLS (Multi-Protocol Label Switching) is a mature IP high-speed switching network architecture and standard. It is a system for fast data packet switching and routing, providing addressing and routing for network data traffic. , forwarding and switching capabilities. MPLS-TP (MPLS Transport Profile, Transport Multi-Protocol Label Switching) is a connection-oriented packet transport network (Packet Transport Network, PTN) technology based on the extension of MPLS, which inherits the scalability of MPLS , multi-service provisioning capability, network flexibility and other advantages, while expanding and improving to enhance the necessary OAM (Operations, Administration and Management, operation management and maintenance) and protection capabilities of the transport network. [...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L45/50H04L45/741
Inventor 邓柱升
Owner FENGJIE DONGYANG BUILDING MATERIALS CO LTD
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