Method and system for end-to-end pseudo-line analog access

Abstract

This invention relates to methods and system of end-to-end pseudo-line simulative cut-in the field of communication technology. PWE3 switch in through Mac-in-Mac; transmit data as Mac-in-Mac report manner between the U-PE equipment of the user periphery oriented and N-PE equipment of the network periphery oriented. The invention achieves the cut-in of PWE3 channel through Mac-in-Mac; increase the network flexibility, so that TAG business of business operators can transmit to the other side through PWE3 channel, to have the same type of treatment to the same business type of users.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and system for end-to-end pseudowire analog access. Background technique [0002] PWE3 (end-to-end pseudowire emulation) is an end-to-end Layer 2 service bearer technology, which belongs to the point-to-point L2VPN (Layer 2 Virtual Private Network). In the two PEs of the PSN (Public Switched Network) network, it uses LDP (Label Distribution Protocol) / RSVP (Resource Reservation Protocol) as signaling to simulate various Layer 2 services at the CE (User Edge Device) end through tunnels , such as various Layer 2 data packets, bit streams, etc., so that Layer 2 data at the CE side can be transparently transmitted in the PSN network. [0003] FIG. 1 is a schematic diagram of a reference model of an existing PWE3 accessing an Ethernet. PE1 and PE2 are network edge devices. A PW virtual private line, namely PWE3 channel, is established between PE1 and PE2. CE1 ...

AI Technical Summary

Problems solved by technology

[0023] Since there are only 4K service labels for QinQ access to PWE3, and the intermediate devices of the QinQ network need to support QinQ and need to know the user's MAC address, the scalability of packet transmission through QinQ access to PWE3 is poor.

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