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Configuration Guide - VPN

S9300, S9300E, and S9300X V200R010C00

This document describes the VPN configuration procedures and provides configuration examples.
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Configuring Inter-AS Martini VPLS in OptionA Mode

Configuring Inter-AS Martini VPLS in OptionA Mode

When VPLS is deployed in a large area, PEs may belong to different ASs. In this case, PWs cannot be established between PEs through LDP. To solve the problem in a normal network, configure inter-AS Martini VPLS.

Pre-configuration Task

Before configuring inter-AS Martini VPLS in OptionA mode, complete the following tasks:
  • Configure IGP for the MPLS backbone network of each AS to ensure IP connectivity of the backbone network within an AS.
  • Configure basic MPLS functions on the MPLS backbone network of each AS.
  • Configure MPLS LDP and establish the LDP LSP for the MPLS backbone network of each AS.
  • Establish a tunnel between the PE and ASBR within an AS.

Context

The configuration is described as follows:

  • Configuring Martini VPLS in each AS.
  • An ASBR considers a peer ASBR as a CE.
  • No inter-AS configuration needs to be performed on ASBRs.
  • No IP address needs to be configured for the interfaces connecting ASBRs.

For details, see Configuring Martini VPLS.

NOTE:

In inter-AS Martini VPLS OptionA, each ASBR must reserve an AC interface for each inter-AS VC. OptionA can be used when the number of inter-AS VCs is small. Compared with the L3VPN, the inter-AS L2VPN OptionA consumes more resources and requires more configuration workload. Therefore, the inter-AS L2VPN OptionA is not recommended.

Checking the Configuration

  • Run the display vsi [ name vsi-name ] [ verbose ] command to check information about a VPLS VSI.
  • Run the display vsi remote ldp [ router-id ip-address ] [ pw-id pw-id ] command to check information about a remote VSI.
  • Run the display vpls connection [ ldp | vsi vsi-name ] [ down | up ] [ verbose ] command to check information about a VPLS connection.
  • Run the ping vpn-config peer-address peer-address vsi-name vsi-name [ pw-id pw-id ] [ local ] [ remote ] command to check configurations of the VSI on the peer PE.
  • Run the ping vpls mac mac-address vsi vsi-name [ vlan vlan-id | -c count | -m time-value | -s packsize | -t timeout | -exp exp | -r replymode ] * command to check the connectivity of Layer 2 links on the VPLS network.
  • Run the trace vpls mac mac-address vsi vsi-name [ vlan vlan-id ] [ -t timeout | -f first-ttl | -m max-ttl | -exp exp | -r replymode ] * command to check the PEs and P that packets pass from the sender to the receiver and check the connectivity of Layer 2 links, which helps locate the faulty node on the network.
NOTE:

In OptionA mode, the ping and trace functions support intra-AS detection.

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Updated: 2019-08-21

Document ID: EDOC1000142068

Views: 115363

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