H3C Technologies H3C SR8800 User Manual
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Interface: GigabitEthernet1/1/1
Id IPV4.State IPV6.State MTU Type DIS
001 Up Down 1497 L1/L2 No/Yes
By using the default DIS priority, Router C is the Level-1 DIS, and Router D is the Level-2 DIS. The
pseudonodes of Level-1 and Level-2 are 0000.0000.0003.01 and 0000.0000.0004.01
respectively.
3.
Configure the DIS priority of Router A:
[RouterA] interface GigabitEthernet 1/1/1
[RouterA-GigabitEthernet1/1/1] isis dis-priority 100
# Display information about IS-IS neighbors of Router A.
[RouterA] display isis peer
Peer information for ISIS(1)
----------------------------
System Id: 0000.0000.0002
Interface: GigabitEthernet1/1/1 Circuit Id: 0000.0000.0001.01
State: Up HoldTime: 29s Type: L1(L1L2) PRI: 64
System Id: 0000.0000.0003
Interface: GigabitEthernet1/1/1 Circuit Id: 0000.0000.0001.01
State: Up HoldTime: 22s Type: L1 PRI: 64
System Id: 0000.0000.0002
Interface: GigabitEthernet1/1/1 Circuit Id: 0000.0000.0001.01
State: Up HoldTime: 22s Type: L2(L1L2) PRI: 64
System Id: 0000.0000.0004
Interface: GigabitEthernet1/1/1 Circuit Id: 0000.0000.0001.01
State: Up HoldTime: 22s Type: L2 PRI: 64
# Display information about IS-IS interfaces of Router A.
[RouterA] display isis interface
Interface information for ISIS(1)
---------------------------------
Interface: GigabitEthernet1/1/1
Id IPV4.State IPV6.State MTU Type DIS
001 Up Down 1497 L1/L2 Yes/Yes
After the DIS priority configuration, you can see Router A is the DIS for Level-1-2, and the
pseudonode is 0000.0000.0001.01.
# Display information about IS-IS neighbors and interfaces of Router C.
[RouterC] display isis peer
Peer information for ISIS(1)
----------------------------