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Configuration Guide - VPN

CloudEngine 12800 and 12800E V200R005C10

This document describes the configurations of VPN, including GRE, BGP/MPLS IP VPN, BGP/MPLS IPv6 VPN, VLL, PWE3, and VPLS.
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Disabling an ASBR from Filtering VPNv4 Routes by VPN Targets

Disabling an ASBR from Filtering VPNv4 Routes by VPN Targets

Context

By default, the PE filters received VPNv4 routes based on VPN targets. The routes passing the filter are added to the routing table, and the others are discarded. If the PE is not configured with a VPN instance, or the VPN instance is not configured with a VPN target, the PE discards all the received VPNv4 routes.

In Inter-AS VPN Option B, you do not need to configure VPN instances on the ASBRs. An ASBR must save all the VPNv4 routes and advertises the VPNv4 routes to the remote ASBR. In this case, the ASBR must accept all the VPNv4 routing information without the VPN target filtering.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run bgp { as-number-plain | as-number-dot }

    The BGP view is displayed.

  3. Run ipv4-family vpnv4 [ unicast ]

    The BGP-VPNv4 address family is displayed.

  4. Run undo policy vpn-target

    The switch is disabled from filtering VPNv4 routes based on the VPN target.

  5. Run commit

    The configuration is committed.

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Updated: 2019-04-03

Document ID: EDOC1100075353

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