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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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Configuring Route Reflection for BGP VPNv4 Routes

Configuring Route Reflection for BGP VPNv4 Routes

Context

Perform the following steps on the RR.

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

    The BGP VPNv4 address family view is displayed.

  4. Enable route reflection for BGP VPNv4 routes on the RR.

    • Run the peer group-name reflect-client command to enable route reflection if the RR establishes the MP IBGP connection with the peer group consisting of client PEs.

    • Run the peer ipv4-address reflect-client command to enable route reflection if the RR establishes the MP IBGP connection with each PE rather than peer group. Run this command for each PE.

  5. Run undo policy vpn-target

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

  6. (Optional) Run rr-filter { extcomm-filter-number | extcomm-filter-name }

    The reflection policy is configured for the RR. Only the IBGP route of which the route-target extended community attribute meets the matching rules can be reflected. This allows load balancing among RRs.

    In this command, the extended community filter specified by extcomm-filter-number or extcomm-filter-name must have been configured using the ip extcommunity-filter command.

  7. (Optional) Run undo reflect between-clients

    Route reflection is disabled between clients.

    If the clients of an RR have established full-mesh connections with each other, the undo reflect between-clients command can be used to disable route reflection between clients. This reduces the link cost. By default, route reflection is enabled between the clients of an RR.

  8. (Optional) Run reflector cluster-id cluster-id

    The RR cluster ID is set.

    If a cluster has multiple RRs, set the same cluster ID for these RRs to prevent routing loops. By default, the cluster ID is the router ID.

  9. Run commit

    The configuration is committed.

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Updated: 2019-04-03

Document ID: EDOC1100075353

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