187
undo preference
Default
IS-IS preference is 15.
Views
IS-IS view
Predefined user roles
network-admin
Parameters
preference
: Specifies an IS-IS protocol preference in the range of 1 to 255.
route-policy
route-policy-name
: Specifies a routing policy by its name, a case-sensitive string of 1 to 63
characters, to assign a priority to the matching routes.
Usage guidelines
If a routing policy is specified in this command, the preference set by the routing policy applies to the
matching routes. Other routes use the preference set by the
preference
command.
If multiple routing protocols find routes to the same destination, the route found by the routing protocol
with the highest preference is selected as the optimal route.
Examples
# Configure the preference for IS-IS as 25.
<Sysname> system-view
[Sysname] isis 1
[Sysname-isis-1] preference 25
priority
Use
priority
to assign convergence priorities to specific IS-IS routes.
Use
undo priority
to remove the configuration.
Syntax
priority
{
critical
|
high
|
medium
} {
prefix-list
prefix-list-name
|
tag
tag-value
}
undo priority
{
critical
|
high
|
medium
}
[
prefix-list
|
tag
]
Default
IS-IS routes have the lowest convergence priority.
Views
IS-IS view
Predefined user roles
network-admin
Parameters
critical
: Specifies the highest convergence priority.
high
: Specifies the high convergence priority.
medium
: Specifies the medium convergence priority.
