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Configuration Guide - IP Routing 01

NE05E and NE08E V300R003C10SPC500

This is NE05E and NE08E V300R003C10SPC500 Configuration Guide - IP Routing

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Configuring FRR for IPv6 Static Routes

Configuring FRR for IPv6 Static Routes

Fast ReRoute (FRR) is applicable to services that are sensitive to packet delay and packet loss. FRR can be configured for IPv6 static routes to protect traffic using backup links.

Usage Scenario

FRR is applicable to IP services that are sensitive to delay and packet loss. FRR minimizes the impact of link faults on services.

You can specify different priorities for different IPv6 static routes to implement FRR for IPv6 static routes. Routes to the same destination but with different priorities can back up each other.

Pre-configuration Tasks

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

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run ipv6 route-static frr [ vpn-instance vpn-instance-name ]

    FRR is enabled for public or VPN IPv6 static routes.

    NOTE:

    To implement route backup by configuring FRR for static routes, you need to specify different priorities for these static routes.

  3. (Optional) Enable IP FRR poison reverse.
    1. Run interface interface-type interface-number

      The interface or sub-interface view is displayed.

    2. Run poison-reverse enable

      IP FRR poison reverse is enabled.

      On an IP ring network configured with IP FRR, the poison-reverse enable command is used to prevent instantaneous traffic storms caused by the route convergence.

      In the load balancing scenario, poison reverse does not take effect.

  4. Run commit

    The configuration is committed.

Checking the Configurations

Run the following commands to check the previous configuration.

  • Run the display ipv6 routing-table verbose command to check detailed information about the backup outbound interface and the backup next hop in the routing table.

  • Run the display ipv6 routing-table ipv6-address [ prefix-length ] [ longer-match ] verbose command to check detailed information about the backup outbound interface and the backup next hop in the routing table.

# Run the display ipv6 routing-table verbose command to view detailed information about the backup outbound interface and the backup next hop in the routing table.

<HUAWEI> display ipv6 routing-table 2001:db8:10::1 verbose
Routing Table : _public_
Summary Count : 1

Destination  : 2001:db8:9::                            PrefixLength : 64
NextHop      : 2001:db8:10::2                          Preference   : 40
Neighbour    : ::                                      ProcessID    : 0
Label        : NULL                                    Protocol     : Static
State        : Active Adv Relied                       Cost         : 0
Entry ID     : 0                                       EntryFlags   : 0x00000000
Reference Cnt: 0                                       Tag          : 0
IndirectID   : 0x2c                                    Age          : 41sec
RelayNextHop : 2001:db8:10::2                          TunnelID     : 0x0
Interface   : GigabitEthernet0/1/0                                Flags        : RD
BkNextHop   : 2001:db8:20::2                          BkInterface : GigabitEthernet0/2/0
BkLabel      : NULL                                    BkTunnelID   : 0x0
BkPETunnelID : 0x0                                     BkIndirectID : 0x2d
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Updated: 2019-01-14

Document ID: EDOC1100058916

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