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Method and apparatus for carrying out multicast forwarding on MPLS (Multi-Protocol Label Switching) intermediate node

A multi-protocol label and intermediate node technology, applied in the field of multi-protocol label switching intermediate node multicast forwarding, can solve the problem that P nodes cannot realize protection, etc.

Active Publication Date: 2016-07-20
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] It can be seen that in the current technology, there is no point-to-multipoint multicast forwarding technology for P nodes. Since P nodes cannot perform point-to-point forwarding, 1+1 or 1+N protection cannot be realized on P nodes.

Method used

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  • Method and apparatus for carrying out multicast forwarding on MPLS (Multi-Protocol Label Switching) intermediate node
  • Method and apparatus for carrying out multicast forwarding on MPLS (Multi-Protocol Label Switching) intermediate node
  • Method and apparatus for carrying out multicast forwarding on MPLS (Multi-Protocol Label Switching) intermediate node

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Embodiment Construction

[0036] In the embodiment of the present invention, the P node grabs the MPLS message according to the ACL rule, redirects the captured MPLS message to the VPLS multicast forwarding table, and according to the following One-hop information, and multicast forward the MPLS message.

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] The embodiment of the present invention implements a method for MPLS intermediate node multicast forwarding, such as figure 1 As shown, the method includes the following steps:

[0039] Step 101: the P node captures the MPLS packets that need to be multicast according to the ACL rules;

[0040] Specifically, in a static MPLS scenario, after receiving an MPLS packet, the P node judges whether the ingress tunnel label of the MPLS packet matches the tunnel label configured in the ACL rule. When the configured tunnel label matches, capture the MPLS messa...

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Abstract

The invention discloses a method for carrying out multicast forwarding on an MPLS (Multi-Protocol Label Switching) intermediate node. A P (Provider) node captures an MPLS message according to an ACL (Access Control List) rule; the captured MPLS message is redirected to a VPLS (Virtual Private Lan Service) multicast forwarding list; and according to a next hop of information of each multicast forwarding list item in the VPLS multicast forwarding list, the MPLS message is subjected to multicast forwarding. The invention simultaneously further discloses an apparatus for carrying out multicast forwarding on the MPLS intermediate node, and a node.

Description

technical field [0001] The invention relates to message forwarding technology, in particular to a multi-protocol label switching (MPLS) intermediate node multicast forwarding method, device and node. Background technique [0002] In general, MPLS forwarding is performed on the backbone router (P, Provider) node in the service provider network, and the P node will directly search the MPLS forwarding table according to the ingress tunnel label of the MPLS message, and replace the tunnel label and send it directly. They are all one-to-one, and cannot complete one-to-many forwarding. [0003] The current MPLS multicast is performed on the ingress service provider edge router (PE, ProviderEdge) node through the MPLS ingress Layer 2 Virtual Private Network (L2VPN) multicast mode. After the original message enters the PE node, The PE node directly encapsulates the tunnel label and the pseudowire label through the network deployment of the virtual private local area network service...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/713H04L12/723H04L12/761H04L12/741H04L45/16H04L45/50H04L45/586H04L45/74
CPCH04L12/18H04L12/1886H04L45/502H04L45/16H04L12/4641H04L45/586H04L63/0263H04L63/101
Inventor 林宁
Owner ZTE CORP