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Method, system, device and network device for realizing E-TREE service

A technology based on multiple points and implementation methods, applied in the field of communications, can solve the problem of a small number of VFIs

Active Publication Date: 2014-08-27
RUIJIE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] Embodiments of the present invention provide a method, system, device, and network equipment for implementing Ethernet-based multipoint services, so as to solve the problem in the prior art that the number of VFIs that PEs can actually establish is relatively small when implementing E-TREE services

Method used

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  • Method, system, device and network device for realizing E-TREE service
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  • Method, system, device and network device for realizing E-TREE service

Examples

Experimental program
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Embodiment 1

[0048] Such as image 3 As shown, it is a schematic flow diagram of the method for realizing the Ethernet-based multipoint service in Embodiment 1 of the present invention, and its specific processing flow is as follows:

[0049] Step 31 , the first PE sends a label mapping message to the peer second PE. The label mapping message carries node type information of each first CE connected to the first PE, and the node types include leaf nodes and root nodes.

[0050] In Embodiment 1 of the present invention, the first PE may, but is not limited to, carry the node type information of each first CE connected to the first PE in the interface parameter Type-Length-Value (TLV, Type-Length-Value) of the label mapping message.

[0051] Among them, the interface parameter TLV format is defined as follows:

[0052]

[0053] Embodiment 1 of the present invention uses 2 bits (R and L) in the reserved field of the TLV to carry the node type information of the connected CE. R is used to i...

Embodiment 2

[0100] The method for realizing the Ethernet-based multipoint service proposed by the embodiment of the present invention mainly includes a processing flow of sending a label mapping message and a processing flow of receiving a label mapping message, which are respectively introduced below.

[0101] Such as Figure 4 As shown, it is a schematic diagram of the processing flow of sending a label mapping message when implementing the Ethernet-based multipoint service proposed by Embodiment 2 of the present invention. The specific processing flow is as follows:

[0102] Step 41, PE1 configures node attributes for the CE connected to itself, including information such as node type, E-TREE identification and MTU;

[0103] Step 42, PE1 checks whether the node type of CE configured with node attributes is a root node or a leaf node, if it is a leaf node, then go to step 43, if it is a root node, then go to step 47;

[0104] Step 43, PE1 determines that except for the CE configured wi...

Embodiment 3

[0136] Based on the method for implementing Ethernet-based multipoint services proposed in Embodiment 1 of the present invention, Embodiment 3 of the present invention proposes a device for implementing Ethernet-based multipoint services, which corresponds to the first PE in Embodiment 1 of the present invention, and its structure is as follows Figure 6 shown, including:

[0137] A node type obtaining unit 61, configured to obtain node type information of each first CE connected to the Ethernet root multipoint service implementation device, where the node type includes a leaf node and a root node;

[0138] The label mapping message sending unit 62 is configured to send a label mapping message to other Ethernet basic multipoint service implementation devices at the opposite end, and the label mapping message carries the first CE information of each first CE connected to the Ethernet basic multipoint service implementation device. Node type information.

[0139] Preferably, th...

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Abstract

The invention discloses a method, a system, a device and a network device for realizing E-TREE service. The method comprises the following steps: a first PE sends label maping information to a second PE; the second PE confirms node types of both first CEs connected with the first PE and second CEs connected with the second PE according to the node type information in the received label maping information; a pseudo circuit is created for realizing communication between the second CEs and the first CEs if all the nodes of the second CEs connected with the second PE are root nodes; and a pseudo circuit is created for realizing communication between the second CEs and the first CEs of which the nodes are root nodes if the second CEs connected with the second PE include the second CEs of which the nodes are leaf nodes, and the first CEs include the first CEs of which the nodes are root nodes. Through the technical scheme provided by the invention, the problem in the prior art that the number of actually built VFIs (Visual Fault Indicator) is less for realizing the E-TREE service is solved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, system, device and network equipment for realizing Ethernet-based multipoint service. Background technique [0002] The prior art defines the following three Ethernet services: point-to-point Ethernet line (E-line, Ethernetline) service, multipoint-to-multipoint Ethernet local area network (E-LAN, Ethernet Local Area Network) service and point-to-multipoint Ethernet Tree (E-TREE, Ethernet Tree) service, wherein, the E-TREE service may also be called Ethernet root multipoint service. [0003] Virtual Private LAN Service (VPLS, Virtual Private LAN Service) is a Layer 2 Virtual Private Network (L2vpn, Layer 2 Virtual Private Network) technology defined by the Internet Engineering Task Force (IETF, Internet Engineering Task Force), which can provide E -LAN service. E-TREE technology is a hybrid technology of E-LAN ​​technology and E-line technology: in an E...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/46H04L12/70H04L12/701
Inventor 曹玉群
Owner RUIJIE NETWORKS CO LTD