Usage Scenario
To enable FRR for IS-IS or display the IS-IS FRR view if FRR has been enabled, run the frr command. Before using the frr command, you need to enable an IS-IS process.Running the undo frr command will also delete all configurations from the FRR view. Therefore, exercise caution when running this command.
On a network with redundant links, a backup link can be pre-computed through IP FRR, and then the backup link is added to the forwarding table. In this manner, if the primary link fails, traffic can be protected in time and the traffic interruption time is reduced to within 50 ms. This meets the requirement for real-time services.
The
ipv6 frr command is applicable to IPv6 base topologies.
The
ipv6 frr command is used to enable IPv6 FRR and enter the IPv6 FRR view.
After configuring the
ipv6 frr command, run the
loop-free-alternate command to compute a loop-free backup route.
Prerequisites
Before configuring the frr command, enable an IS-IS process.
Before configuring the
ipv6 frr command, enable IPv6 IS-IS.
Precautions
Running the undo frr command will also delete all configurations from the FRR view. Therefore, exercise caution when running this command.