locator locator-name [ ipv6-prefix ipv6-address prefix-length [ args args-length | static static-length ] * ]
4. Configure an End.M SID and specify the locator to be protected by the End.M SID.
opcode opcode end-m mirror-locator ipv6-address prefix-length
Enabling egress protection
About this task
This task enables the SRv6 node to compute a backup path (mirror FRR path) for the egress node based on the End.M SID carried in a received IS-ISv6 or OSPFv3 route. When the egress node fails, the transit node can forward traffic to the node that protects the egress node according to the End.M
SID.
In an egress protection scenario, the transit node deletes the mirror FRR path after completing route convergence. If the deletion occurs before the ingress node switches traffic back from the mirror
FRR path, the traffic will be dropped because of no mirror FRR path.
To resolve this issue, you can configure a proper mirror FRR deletion delay time on the transit node to delay the deletion of the mirror FRR route. So, packets can be forwarded over the mirror FRR path before the ingress finishes the path switchover.
Enabling IS-IS egress protection
1. Enter system view. system-view
2. Enter IS-IS view. isis [ process-id ] [ vpn-instance vpn-instance-name ]
3. Enter IS-IS IPv6 address family view. address-family ipv6 [ unicast ]
4. Enable IS-IS egress protection.
fast-reroute mirror enable
By default, IS-IS egress protection is disabled.
5. (Optional.) Configure the mirror FRR deletion delay time.
fast-reroute mirror delete-delay delete-delay-time
By default, the mirror FRR deletion delay time is 60 seconds.
Enabling OSPFv3 egress protection
1. Enter system view. system-view
2. Enter OSPFv3 view. ospfv3 [ process-id | vpn-instance vpn-instance-name ] *
3. Enable OSPFv3 egress protection.
fast-reroute mirror enable
By default, OSPFv3 egress protection is disabled.
4. (Optional.) Configure the mirror FRR deletion delay time.
fast-reroute mirror delete-delay delete-delay-time
By default, the mirror FRR deletion delay time is 60 seconds.
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