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Method and system for spreading pseudowire routing and sink node equipment

A diffusion method and a technology of convergence nodes, applied in the field of communication, can solve the problems of increasing the complexity of access equipment and increasing the burden of access equipment, and achieve the effect of reducing complexity

Active Publication Date: 2011-08-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventor found in practice that the access device is usually only a layer 2 device, and in order to support PW routing expansion in a multi-segment PW scenario, the access device needs to upgrade the control plane to a layer 3, which not only increases the complexity of the access device degree, and increases the burden on access equipment

Method used

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  • Method and system for spreading pseudowire routing and sink node equipment
  • Method and system for spreading pseudowire routing and sink node equipment
  • Method and system for spreading pseudowire routing and sink node equipment

Examples

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Embodiment 1

[0038] See figure 2 , from the access device DSLAM1 to the aggregation node Router1, and from the access device DSLAM2 to the aggregation node Router2 are generally referred to as the access section, and non-routing protocols can be used to transmit messages on the access section, for example, in the unique Distributes PW routes using a specific configuration protocol, which can simplify the complexity and burden of access devices.

[0039] For example, the access device DSLAM1 and the access device DSLAM2 can adopt specific configuration protocols such as Access Node Control Protocol (Access Node Control Protocol, ANCP) or Ethernet Operation, Administration and Maintenance (Ethernet Operation, Administration and Maintenance, ETH The OAM protocol is used to realize the PW path of the diffuse access device. Usually, the ANCP protocol is used for Digital Subscriber Line (Digital Subscriber Line, DSL) or Ethernet access scenarios; the Eth OAM protocol is used for Gigabit-bit pas...

Embodiment 2

[0052] see Figure 4 , is a flow chart of the pseudowire routing diffusion method according to the second embodiment of the present invention. In this embodiment, a specially configured non-routing protocol such as the ANCP protocol or the ETH OAM protocol is used to implement PW routing of the flooded access device (such as a DSLAM). Schematic diagram of PW routing extension in this embodiment and figure 2 same. Generally, the ANCP protocol is used in DSL or Ethernet access scenarios, and the Eth OAM protocol is used in GPON access scenarios, but other situations are not excluded. For example, ETH OAM protocol is used in DSL or Ethernet or EPON access scenarios.

[0053] Wherein, the specific steps of the pseudowire routing diffusion method are:

[0054] In step 401, the access device DSLAM1 enables the PW routing function, and encapsulates the GlobalID, Prefix and AC ID of the access device DSLAM1 into AII information, that is, into PW routing.

[0055] In step 402, the...

Embodiment 3

[0074] In the second embodiment, the PW route of the access device needs to be maintained and released by the access device. For example, the PW route of the DSLAM11 needs to be maintained and released by the DSLAM11 itself, and a PW routing table is maintained in the DSLAM1. In this embodiment, the PW routing of the access device is maintained by the aggregation node as an agent, and between the aggregation node and the access device, an existing configuration protocol (such as ANCP protocol or ETH OAM protocol) is used to control the aggregation node to access Maintain the PW route of the device.

[0075] In this example, the aggregation node Router1 maintains the PW route of DSLAM1, and also maintains the PW route of Router1. Next, the ANCP protocol or the ETH OAM protocol is used to realize the PW routing of the diffuse DSLAM1. Generally, the ANCP protocol is used in DSL or Ethernet access scenarios, and the Eth OAM protocol is used in EPON access scenarios, but other sit...

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Abstract

The embodiment of the invention relates to the technical field of communications and discloses a method and system for spreading pseudowire routing and sink node equipment. The method comprises the following steps: receiving a non-routing protocol message sent by an access device, wherein the non-routing protocol message carries the pseudowire routing of the access device or port information of the access device; according to the non-routing protocol message, acquiring the pseudowire routing of the access device; according to the pseudowire routing, generating a routing protocol message carrying with the pseudowire routing, and sending the routing protocol message to switching equipment, so that the switching equipment spreads the pseudowire routing. According to the embodiment of the invention, the complexity of the access device can be reduced.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a pseudowire routing diffusion method, system and sink node equipment. Background technique [0002] Pseudowire (Pseudo Wire, PW) is a method of carrying the key elements of an emulation service from a provider edge device (Provider Edge, PE) to another or more The mechanism of PE. In most cases, a single-segment pseudowire (Single-Segment PseudoWire, SS-PW) can meet the carrying requirements. However, when a signaling connection or a tunnel cannot be established between two PEs, or the In the case of different signaling, the transmission shall be completed through a multi-segment pseudowire (Multi-Segment PseudoWire, MS-PW). When creating a multi-segment PW, the PE access device such as a subscriber line access multiplexer (Digital Subscriber Line Access Multiplexer, DSLAM) will diffuse the PW route to each node in the network, so that the access device (such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L45/02
CPCH04L45/02H04L45/68H04L45/00H04L45/033H04L2012/5603
Inventor 徐卫平
Owner HUAWEI TECH CO LTD
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