Configuring Inter-As Pwe3-Option A; Checking The Configuration - Huawei quidway s7700 Configuration Manual

Quidway S7700 Smart Routing Switch
Configuration Guide - VPN
Pre-configuration Tasks
Before configuring inter-AS PWE3, complete the following tasks:
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Data Preparation
To configure inter-AS PWE3, you need the following data.
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6.11.2 Configuring Inter-AS PWE3-Option A

In inter-AS PWE3 OptionA, each ASBR must reserve a sub-interface for each inter-AS VC. If
the number of inter-AS VCs is small, this solution can be used. Compared with L3VPN, this
inter-AS L2VPN solution consumes more resources and requires heavier configuration
workload, which is not recommended.
Context
The configurations of inter-AS PWE3-Option A can be summarized as follows:
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The configuration details are not mentioned here.

6.11.3 Checking the Configuration

After inter-AS PWE3 is configured, you can view PW information on the local end and remote
end.
Prerequisite
The configurations of the Inter-AS PWE3 function are complete.
Procedure
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Issue 01 (2011-07-15)
Configuring an IGP protocol for MPLS backbone networks in each AS to ensure IP
connectivity within an AS
Configuring basic MPLS functions for MPLS backbone networks in each AS
Configuring MPLS LDP for MPLS backbone networks in each AS and establishing LDP
LSP
Data
Option of the inter-AS VPN
AS number of each AS
6.5 Configuring a Dynamic PW
Configuring the local ASBR by regarding the peer ASBR as its CE
No inter-AS configuration is needed on the ASBRs.
You need not configure the IP addresses on the interfaces that directly connected ASBRs.
Run the display mpls l2vc [ vc-id | interface interface-type interface-number ] command
to check information about the PW on the local PE.
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for each AS
6 PWE3 Configuration
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