Configuration Prerequisites; Configuration Guidelines; Configuring Is-Is Frr To Automatically Calculate A Backup Next Hop; Configuring Is-Is Frr Using A Routing Policy - HP 6125XLG Configuration Manual

Configuration prerequisites

Before you configure IS-IS FRR, complete the following tasks:
• Configure IP addresses for interfaces to ensure IP connectivity between neighboring nodes.
Enable IS-IS.
•

Configuration guidelines

Do not use FRR and BFD at the same time. Otherwise, FRR may fail to take effect.
Configuring IS-IS FRR to automatically calculate a backup next
hop
Step
1. Enter system view.
2. Configure the source address
of echo packets.
3. Enter IS-IS view.
4. Enable IS-IS FRR to
automatically calculate a
backup next hop.

Configuring IS-IS FRR using a routing policy

You can use the apply fast-reroute backup-interface command to specify a backup next hop in a routing
policy for routes matching specific criteria, and perform this task to reference the routing policy for IS-IS
FRR. For more information about the apply fast-reroute backup-interface command and routing policy
configurations, see "Configuring routing policies."
To configure IS-IS FRR using a routing policy:
Step
1. Enter system view.
2. Configure the source address
of echo packets.
3. Enter IS-IS view.
4. Enable IS-IS FRR using a
routing policy.
Command
system-view
bfd echo-source-ip ip-address
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
fast-reroute auto
Command
system-view
bfd echo-source-ip ip-address
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
fast-reroute route-policy
route-policy-name
134
Remarks
N/A
By default, the source address of
echo packets is not configured.
N/A
By default, IS-IS FRR is disabled.
Remarks
N/A
By default, the source address of
echo packets is not configured.
N/A
By default, this feature is not
enabled.