The ipv6 import-route isis level-1 into level-2 command enables IPv6 route leaking from a Level-1 area to a Level-2 area.
The undo ipv6 import-route isis level-1 into level-2 command disables IPv6 route leaking from a Level-1 area to a Level-2 area.
By default, all IPv6 routes can leak from a Level-1 area to a Level-2 area.
ipv6 import-route isis level-1 into level-2 [ tag tag | filter-policy { acl6-number | acl6-name acl6-name-string | ipv6-prefix ipv6-prefix-name | route-policy route-policy-name | route-filter route-filter-name } | direct allow-filter-policy ] *
undo ipv6 import-route isis level-1 into level-2
undo ipv6 import-route isis level-1 into level-2 { tag tag | filter-policy { acl6-number | acl6-name acl6-name-string | ipv6-prefix ipv6-prefix-name | route-policy route-policy-name | route-filter route-filter-name } | direct allow-filter-policy } *
| Parameter | Description | Value |
|---|---|---|
| tag tag |
Assigns administrative tags to imported routes. |
The value ranges from 1 to 4294967295. |
| filter-policy |
Indicates a route filtering policy. |
- |
| acl6-number |
Specifies a basic ACL6 number. |
The value is an integer ranging from 2000 to 2999. |
| acl6-name acl6-name-string |
Specifies the name of a named basic ACL6. |
The value is a string of 1 to 64 case-sensitive characters without spaces. The value must start with a letter (a to z or A to Z, case sensitive). |
| ipv6-prefix ipv6-prefix-name |
Specifies the name of an IPv6 prefix list. Only the routes that match the specified IPv6 prefix can leak from a Level-1 area to a Level-2 area. |
The name is a string of 1 to 169 case-sensitive characters, with spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string. |
| route-policy route-policy-name |
Specifies the name of a route-policy. |
The name is a string of 1 to 200 case-sensitive characters, with spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string. |
| route-filter route-filter-name |
Specifies the name of a route filter policy. The policy is used to filter the imported routes so that only some of the routes of other routing domains can be imported. |
The value is a string of 1 to 200 case-sensitive characters, spaces not supported. If parameters are included in the referenced route-filter, specify values for them in the format of (var1, var2, ...var8) behind the route-filter name. A maximum of eight parameters can be specified, and each value ranges from 1 to 200 characters. |
| direct |
Specifies the direct routes. |
- |
| allow-filter-policy |
Applies the filtering policy to direct routes. If the parameter is configured, only the IS-IS direct routes that match the filtering policy can leak from a Level-1 area to a Level-2 area. If the parameter is not configured, all direct routes can leak from a Level-1 area to a Level-2 area. |
- |
Usage Scenario
To enable IPv6 route leaking from a Level-1 area to a Level-2 area, run the ipv6 import-route isis level-1 into level-2 command, which facilitates routing management. The ipv6 import-route isis level-1 into level-2 command takes effect only after IPv6 is enabled for the IS-IS process. For details, see isis ipv6 enable.
Precautions
This command must be configured on a Level-1-2 device on the area boundary.
In the route-policy specified in this command, if-match clauses can be configured to set matching rules, but apply clauses cannot be configured to set route attributes.<HUAWEI> system-view [~HUAWEI] ip ipv6-prefix list deny 2001:db8::1 64 [*HUAWEI] isis 1 [*HUAWEI-isis-1] ipv6 enable [*HUAWEI-isis-1] ipv6 import-route isis level-1 into level-2 filter-policy ipv6-prefix list