hostname disable

Disables Intermediate System-to-Intermediate System (IS-IS) name mapping on a device.

Syntax

hostname disable

no hostname disable

Command Default

Disabled.

Modes

IS-IS router configuration mode

Usage Guidelines

IS-IS is supported on the Extreme 8820, SLX 9740, SLX 9640, and SLX 9540 devices only.

The implementation of IS-IS supports RFC 2763, which describes a mechanism for mapping IS-IS system IDs to the host names of the devices with those IDs. For example, if you set the host name on the device to "IS-IS Router 1", the mapping capability uses this name instead of the IS-IS system ID of the device in the output of the following commands:

show isis database
show isis interface
show isis neighbor

The no form of the command re-enables IS-IS name mapping on a device.

Examples

The following example disables IS-IS name mapping.

device# configure terminal
device(config)# router isis
device(config-isis-router)# hostname disable

The following example re-enables IS-IS name mapping.

device# configure terminal
device(config)# router isis
device(config-isis-router)# no hostname disable