BigIron RX Series Configuration Guide 88153-1001986-01Displaying IPv4 IS-IS information 28Syntax: show isis hostnameThe table in this example contains one mapping, for this device. The device’s IS-IS system ID is“bbbb.cccc.dddd“ and its hostname is “RX”. The display contains one entry for each IS thatsupports name mapping.NOTEName mapping is enabled by default. When name mapping is enabled, the output of the show isisdatabase, show isis interface, and show isis neighbor commands uses the host name instead of thesystem ID. To disable mapping so that these displays use the system ID instead, refer to “Disablingor re-enabling display of hostname” on page 866.Displaying neighbor informationTo display IS-IS neighbor information, enter the following command at any level of the CLI.Syntax: show isis neighbor [detail]The detail option displays more details for each neighbor.This display shows the following information.TABLE 132 IS-IS neighbor informationThis field... Displays...Total number of IS-IS Neighbors The number of ISs with which the device has formed IS-IS adjacencies.System ID The System ID of the neighbor or the hostname of the neighbor.Interface The device port or virtual interface attached to the neighbor.SNPA The Subnetwork Point of Attachment (SNPA), which is the MAC addressof the device port or virtual interface attached to the neighbor.State The state of the adjacency with the neighbor. The state can be one ofthe following:• DOWN – The adjacency is down.• INIT – The adjacency is being established and is not up yet.• UP – The adjacency is up.Holdtime The neighbor’s advertised hold time.BigIron RX# show isis hostnameTotal number of entries in IS-IS Hostname Table: 1System ID Hostname * = local IS* bbbb.cccc.dddd RXBigIron RX# show isis neighborTotal number of IS-IS Neighbors: 2System ID Interface SNPA State Holdtime Type Pri StateChgeTime00e0.52b5.7800 Ether2/4 00e0.52b5.7843 UP 10 ISL2 64 0 :0 :16:800e0.52b5.7800 Ether2/4 00e0.52b5.7843 UP 10 ISL1 64 0 :0 :16:8