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show isis hostname


Syntax (EX Series Switches and QFX Series)


Display IS-IS hostname database information.

This command displays the system ID-to-name cache. The output shows if the mapping has been learned by receipt of a Hostname TLV #137 (type dynamic) configured in Junos OS with the set system host-name command, or a static mapping defined in Junos OS with the set system static-host-mapping hostname sysid command (type static). The local router always has its type set to static even if static-host-mapping is not configured.



Display IS-IS hostname database information.

logical-system (all | logical-system-name)

(Optional) Perform this operation on all logical systems or on a particular logical system.

Required Privilege Level


Output Fields

Table 1 describes the output fields for the show isis hostname command. Output fields are listed in the approximate order in which they appear.

Table 1: show isis hostname Output Fields

Field Name

Field Description

System Id

System identifier mapped to the hostname.


Hostname mapped to the system identifier.


Type of mapping between system identifier and hostname.

  • Dynamic—Hostname mapping determined as described in RFC 2763, Dynamic Hostname Exchange Mechanism for IS-IS.

  • Static—Hostname mapping configured by user.

Sample Output

show isis hostname

Release Information

Command introduced before Junos OS Release 7.4.