Isis Dis-Priority - 3Com S7906E Command Reference Manual

Examples
# Configure the DIS name as LOCALAREA.
<Sysname> system-view
[Sysname] interface vlan-interface 10
[Sysname-Vlan-interface10] isis dis-name LOCALAREA

isis dis-priority

Syntax
isis dis-priority value [ level-1 | level-2 ]
undo isis dis-priority [ level-1 | level-2 ]
View
Interface view
Default Level
2: System level
Parameters
value: Specifies a DIS priority for the interface, ranging from 0 to 127.
level-1: Applies the DIS priority to Level-1.
level-2: Applies the DIS priority to level-2.
Description
Use the isis dis-priority command to specify a DIS priority at a specified level for an interface.
Use the undo isis dis-priority command to restore the default priority of 64 for Level-1 and Level-2.
If neither level-1 nor level-2 is specified in this command, the DIS priority applies to both Level-1 and
Level-2.
On an IS-IS broadcast network, a router should be elected as the DIS at each routing level. You can
specify a DIS priority at a level for an interface. The greater the interface's priority is, the more likelihood
it becomes the DIS. If multiple routers in the broadcast network have the same highest DIS priority, the
router with the highest SNPA (Subnetwork Point of Attachment) address (SNPA addresses are MAC
addresses on a broadcast network) becomes the DIS.
There is no backup DIS in IS-IS and the router with a priority of 0 can also participate in DIS election.
This command is not available in loopback interface view.
Examples
# Configure the level-2 DIS priority as 127 for VLAN-interface 10.
<Sysname> system-view
1-40