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Configuration Guide - IP Unicast Routing

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

This document describes the configurations of IP Unicast Routing, including IP Routing, Static Route, RIP, RIPng, OSPF, OSPFv3, IPv4 IS-IS, IPv6 IS-IS, BGP, Routing Policy, and PBR.
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(Optional) Configuring Static BFD for IPv6 Static Routes

(Optional) Configuring Static BFD for IPv6 Static Routes

Usage Scenario

To use BFD sessions to provide link detection for IPv6 static routes, you can bind IPv6 static routes to BFD sessions. One IPv6 static route can be bound to one BFD session.

Optimal IPv6 static routes are delivered to the forwarding table for packet forwarding. However, IPv6 static routes cannot detect the status of the link to the next hop. You can bind IPv6 static routes to BFD sessions. A BFD session can quickly detect changes over a link and inform the routing management system of the changes. The routing management system immediately deletes the static route that is bound to the BFD session from the forwarding table and recalculates another active route. In this manner, fast route convergence is implemented.

Pre-configuration Tasks

Before configuring static BFD for IPv6 static routes, complete the following tasks:

  • Configure link layer protocol parameters and IP addresses for interfaces and ensure that the link layer protocol on the interfaces is Up.

  • Configure a BFD Session. For details, see "BFD Configuration" in the CloudEngine 8800, 7800, 6800, and 5800 Series Switches Configuration Guide-Reliability

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run either of the following commands as required:
    • Run ipv6 route-static dest-ipv6-address prefix-length { interface-type interface-number [ nexthop-ipv6-address ] | vpn-instance vpn-instance-name nexthop-ipv6-address | nexthop-ipv6-address } [ preference preference | tag tag ] * track bfd-session cfg-name [ description text ]

      A BFD session is bound to an IPv6 static route on the public network.

    • Run ipv6 route-static vpn-instance vpn-source-name dest-ipv6-address prefix-length { interface-type interface-number [ nexthop-ipv6-address ] | vpn-instance vpn-destination-name nexthop-ipv6-address | nexthop-ipv6-address [ public ] } [ preference preference | tag tag ]* track bfd-session cfg-name [ description text ]

      A BFD session is bound to an IPv6 static route on the VPN network.

  3. Run commit

    The configuration is committed.

Verifying the Configuration

Run the following commands to verify the configuration.

Information about a BFD session can be viewed only after parameters of the BFD session are set and the BFD session is established.

  • Run the display bfd session { all | discriminator discr-value } [ verbose ] command to check information about BFD sessions.

  • Run the display current-configuration | include bfd command to check configurations of BFD for IPv6 static routes.

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Updated: 2019-04-20

Document ID: EDOC1100074760

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