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Configuration Guide - Reliability

CloudEngine 8800, 7800, 6800, and 5800 V200R003C00

This document describes the configurations of Reliability, including BFD Configuration, VRRP Configuration, DLDP Configuration, Smart Link and Monitor Link Configuration, EFM Configuration, and CFM Configuration.
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Configuring BFD to Detect VPN Routes

Configuring BFD to Detect VPN Routes

Pre-configuration Tasks

Before configuring BFD to detect VPN routes, complete the following tasks:

  • Configure network layer attributes of interfaces to ensure network connectivity.

  • Configure VPN instances.

Configuration Process

Figure 2-19 Configuring BFD to detect VPN routes

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run bfd

    BFD is enabled globally and the BFD view is displayed.

    By default, BFD is disabled globally.

  3. Run bfd session-name bind peer-ip ip-address vpn-instance vpn-name [ interface interface-type interface-number ] [ select-board slot-id1 [ slot-id2 ] ] [ source-ip ip-address ]

    A BFD session is created and the peer IP address is specified.

    NOTE:
    • When creating a BFD session, bind the BFD session to the peer IP address and the local VPN instance.

    • When the BFD configuration items are created, the system checks only the IP address format. The BFD session cannot be established if an incorrect peer IP address or source IP address is bound.

    • When BFD and URPF are used together, UPRF checks the source IP address of the received BFD packets. You must bind the correct source IP address to the BFD session to prevent BFD packets from being discarded incorrectly.

  4. Run discriminator local discr-value

    The local discriminator is set.

  5. Run discriminator remote discr-value

    The remote discriminator is set.

    NOTE:

    The local discriminator of the local system must be the same as the remote discriminator of the remote system; the remote discriminator of the local system must be the same as the local discriminator of the remote system. Otherwise, BFD sessions cannot be established.

  6. Run commit

    The configuration is committed.

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Updated: 2019-05-08

Document ID: EDOC1100004359

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