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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 IPv6 FRR

Configuring IPv6 FRR

IPv6 FRR is applicable to services that are sensitive to the delay and packet loss on an IPv6 network.

Usage Scenario

Public network IPv6 FRR is applicable to services that are sensitive to the delay and packet loss on an IPv6 public network.

After IPv6 FRR is configured, if a fault is detected at the lower layer, the fault is reported to the upper-layer routing system. Then, packets are forwarded through a backup link, which minimizes the impact of link faults on ongoing services.

IPv6 FRR enables routes of different protocols to back up each other, which may result in loops.

Pre-configuration Tasks

Before configuring IPv6 FRR, complete the following tasks:

  • Configure parameters of the link layer protocol and IPv6 addresses for interfaces and ensure that the link layer protocol on the interfaces is Up.

  • Configure routes of different routing protocols but destined for the same destination address.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run ipv6 frr

    IPv6 FRR is enabled.

    NOTE:

    If IPv6 FRR is configured both in the system view and a routing protocol view, the IPv6 FRR that is configured in the routing protocol view preferentially takes effect.

  3. 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 outbound interfaces and next hops of backup routes in the routing table.

  • Run the display ipv6 routing-table ip-address [ mask | mask-length ] [ longer-match ] verbose command to check information about the outbound interfaces and next hops of backup routes in the routing table.

  • Run the display ipv6 routing-table ip-address1 { mask1 | mask-length1 } ip-address2 { mask2 | mask-length2 } verbose command to check information about the outbound interfaces and next hops of backup routes in the routing table.

# Run the display ipv6 routing-table verbose command to view information about route backup. For example:

<HUAWEI> display ipv6 routing-table 20::1 64 verbose
Routing Table : _public_
Summary Count : 2

Destination  : 20::                                    PrefixLength : 64
NextHop      : 200::2                                  Preference   : 10
Neighbour    : ::                                      ProcessID    : 1
Label        : NULL                                    Protocol    : OSPFv3
State        : Active Adv                              Cost         : 3
Entry ID     : 0                                       EntryFlags   : 0x00000000
Reference Cnt: 0                                       Tag          : 0
IndirectID   : 0x69                                    Age          : 553sec
RelayNextHop : ::                                      TunnelID     : 0x0
Interface    : gigabitethernet 0/2/0                   Flags        : D
BkNextHop    : 100::2                                 BkInterface : gigabitethernet 0/3/0
BkLabel      : NULL                                    BkTunnelID   : 0x0
BkPETunnelID : 0x0                                     BkIndirectID : 0xb5

Destination  : 20::                                    PrefixLength : 64
NextHop      : 100::2                                  Preference   : 15
Neighbour    : ::                                      ProcessID    : 1
Label        : NULL                                    Protocol     : ISIS
State        : Inactive Adv                            Cost         : 30
Entry ID     : 0                                       EntryFlags   : 0x00000000
Reference Cnt: 0                                       Tag          : 0
IndirectID   : 0xb5                                    Age          : 485sec
RelayNextHop : ::                                      TunnelID     : 0x0
Interface    : gigabitethernet 0/3/0                  Flags        : 0
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Updated: 2019-01-14

Document ID: EDOC1100058916

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