The is-name command configures a dynamic hostname for the local IS-IS system and enables a local router to identify the hostname carried in an LSP and advertise the configured dynamic hostname in an LSP.
The undo is-name command disables a local router from identifying the hostname carried in an LSP and deletes the configured hostname.
By default, the local IS-IS system does not have a dynamic hostname.
| Parameter | Description | Value |
|---|---|---|
| symbolic-name | Specifies the dynamic hostname for the local IS-IS system. | The name is a string of 1 to 64 characters without
spaces. It is case sensitive. NOTE:
When double quotation
marks are used around the string, spaces are allowed in the string. |
Usage Scenario
In most cases, to check information about IS-IS neighbors and LSDBs on an IS-IS router, you need to use a system ID of a 12-digit hexadecimal number, for example, aaaa.eeee.1234. This representation, however, is complicated and not easy to use. The dynamic hostname mapping mechanism is introduced to facilitate maintenance and management of IS-IS networks. The is-name command is used to configure a simple hostname for a local router and enables the router to advertise it in an LSP.
After the configuration is completed, you can run the display isis name-table command to check the configured hostname.
This command is valid for all topologies in an IS-IS process.
Prerequisites
An IS-IS process has been enabled using the isis command in the system view.
Precautions
If the is-name command is run more than once, the latest configuration overrides the previous one, and only one host name can be configured for a device.