157
Syntax
fast-reroute
{
auto
|
route-policy
route-policy-name
}
undo fast-reroute
Default
IS-IS FRR is disabled.
Views
IS-IS view
Predefined user roles
network-admin
Parameters
auto
: Calculates a backup next hop automatically for all routes.
route-policy
route-policy-name
: Uses the specified routing policy to designate a backup next hop. The
route-policy-name
argument is a case-sensitive string of 1 to 63 characters.
Usage guidelines
Do not use FRR and BFD at the same time. Otherwise, FRR might fail to take effect.
Example
# Enable IS-IS FRR to automatically calculate a backup next hop for all routes.
<Sysname> system-view
[Sysname] isis
[Sysname-isis-1] fast-reroute auto
filter-policy export
Use
filter-policy export
to configure IS-IS to filter redistributed routes.
Use
undo filter-policy export
to remove the configuration.
Syntax
filter-policy
{
acl-number
|
prefix-list
prefix-list-name
|
route-policy
route-policy-name
}
export
[
protocol
[
process-id
] ]
undo
filter-policy
export
[
protocol
[
process-id
] ]
Views
IS-IS view
Predefined user roles
network-admin
Parameters
acl-number
: Specifies an ACL by its number in the range of 2000 to 3999 to filter redistributed routes.
prefix-list
prefix-list-name
: Specifies an IPv4 prefix list by its name, a case-sensitive string of 1 to 63
characters, to filter redistributed routes by destination address.
route-policy
route-policy-name
: Specifies a routing policy by its name, a case-sensitive string of 1 to 63
characters, to filter redistributed routes.