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Configuring IPv6 IS-IS FRR using a routing policy
You can use the apply ipv6 fast-reroute backup-interface command to specify a backup next hop
in a routing policy for routes matching specific criteria. You can also perform this task to reference the
routing policy for IPv6 IS-IS FRR. For more information about the apply ipv6 fast-reroute
backup-interface command and routing policy configurations, see "Configuring routing policies."
To configure IPv6 IS-IS FRR using a routing policy:
1. Enter system view.
system-view
N/A
2. Enter interface view.
interface
interface-type
interface-number
N/A
3. (Optional.) Disable LFA
calculation on the interface.
isis ipv6 fast-reroute lfa-backup
exclude
By default, the interface
participates in LFA calculation,
and can be elected as a backup
interface.
4. Return to system view.
quit
N/A
5. Enter IS-IS IPv6 unicast
address family view.
isis
[ process-id ] [
vpn-instance
vpn-instance-name ]
N/A
address-family ipv6
[
unicast
]
6. Enable IPv6 IS-IS FRR
using a routing policy.
fast-reroute route-policy
route-policy-name
By default, IPv6 IS-IS FRR is
disabled.
Enabling BFD for IPv6 IS-IS FRR
By default, IPv6 IS-IS FRR does not use BFD to detect primary link failures. To speed up IPv6 IS-IS
convergence, enable BFD for IPv6 IS-IS FRR to detect primary link failures.
To enable BFD control packet mode for IPv6 IS-IS FRR:
1. Enter system view.
system-view
N/A
2. Enter interface view.
interface
interface-type
interface-number
N/A
3. Enable BFD control packet
mode for IPv6 IS-IS FRR.
isis ipv6 primary-path-detect bfd
ctrl
By default, BFD control packet
mode for IPv6 IS-IS FRR is
disabled.
To enable BFD echo packet mode for IPv6 IS-IS FRR:
1. Enter system view.
system-view
N/A
2. Configure the source IPv6
address of BFD echo packets.
bfd echo-source-ipv6
ip-address
By default, the source IPv6
address of BFD echo packets is
not configured.
The source IPv6 address
cannot be on the same network
segment as any local interface's
IP address.
For more information, see High
Availability Command
Reference.
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