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acl-number: Specifies an ACL by its number in the range of 2000 to 3999 to filter routes from Level-1 to
Level-2.
prefix-list prefix-list-name: Specifies an IPv4 prefix list by its name, a case-sensitive string of 1 to 63
characters, to filter routes from Level-1 to Level-2 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 routes from Level-1 to Level-2.
tag tag: Specifies a tag for marking redistributed routes, in the range of 1 to 4294967295.
Usage guidelines
If a routing policy is used, the routing policy must be specified in the import-route isis level-1 into level-2
command to filter routes from Level-1 to Level-2. Other routing policies specified for route reception and
redistribution do not affect the route leaking.
If a filtering policy is configured, only Level-1 routes not filtered out can be advertised into the Level-2
area.
Examples
# Enable route advertisement from Level-1 to Level-2.
<Sysname> system-view
[Sysname] isis 1
[Sysname-isis-1] import-route isis level-1 into level-2
Related commands
• import-route
• import-route isis level-1 into level-2
import-route isis level-2 into level-1
Use import-route isis level-2 into level-1 to enable route advertisement from Level-2 to Level-1.
Use undo import-route isis level-2 into level-1 to disable route advertisement from Level-2 to Level-1.
Syntax
import-route isis level-2 into level-1 [ filter-policy { acl-number | prefix-list prefix-list-name | route-policy
route-policy-name } | tag tag ] *
undo import-route isis level-2 into level-1
Default
Route advertisement is not enabled.
Views
IS-IS view
Predefined user roles
network-admin
Parameters
filter-policy: Specifies a filtering policy.
acl-number: Specifies an ACL by its number in the range of 2000 to 3999 to filter routes from Level-2 to
Level-1.
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