R21xx-HP FlexFabric 11900 Layer 3 IP Routing Command Reference

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prefix-length: Specifies the length of the IPv6 prefix, in the range of 0 to 128.
avoid-feedback: Avoids learning the summary route by route calculation.
generate_null0_route: Generates a NULL 0 route to avoid routing loops.
level-1: Summarizes only the routes redistributed to Level-1.
level-1-2: Summarizes all the routes redistributed to both Level-1 and Level-2.
level-2: Summarize only the routes redistributed to Level-2.
tag: Specifies an administrative tag in the range of 1 to 4294967295.
Usage guidelines
If no level is specified, the command applies to Level-2.
You can summarize routes with the same next hop into a single route to reduce the size of the routing
table, as well as the size of the LSDB. This command can summarize both learned and redistributed IPv6
IS-IS routes. The cost of the summary route is the smallest cost of those summarized routes.
Examples
# Configure a summary route of 2002::/32.
<Sysname> system-view
[Sysname] isis
[Sysname-isis-1] ipv6 summary 2002:: 32
isis ipv6 bfd enable
Use isis ipv6 bfd enable to enable BFD for IPv6 IS-IS.
Use undo isis ipv6 bfd enable to disable BFD for IPv6 IS-IS.
Syntax
isis ipv6 bfd enable
undo isis ipv6 bfd enable
Default
BFD for IPv6 IS-IS is disabled.
Views
Interface view
Predefined user roles
network-admin
Examples
# Enable BFD for IPv6 IS-IS on VLAN-interface 11.
<Sysname> system-view
[Sysname] interface vlan-interface 11
[Sysname-Vlan-interface11] isis ipv6 bfd enable
isis ipv6 enable
Use isis ipv6 enable to enable IPv6 for an IS-IS process on an interface.