360 CHAPTER 29: IS-IS CONFIGURATION
Id IPV4.State IPV6.State MTU Type DIS
001 Up Down 1497 L1/L2 No/Yes
n
By using the default DIS priority, Switch C is the Level-1 DIS, and Switch D is the
Level-2 DIS. The pseudo nodes of Level-1 and Level-2 are 0000.0000.0003.01 and
0000.0000.0004.01 respectively.
3 Configure the DIS priority of Switch A.
[SwitchA] interface vlan-interface 100
[SwitchA-Vlan-interface100] isis dis-priority 100
[SwitchA-Vlan-interface100] quit
# Display IS-IS neighbors of Switch A.
[SwitchA] display isis peer
Peer information for ISIS(1)
----------------------------
System Id: 0000.0000.0002
Interface: Vlan-interface100 Circuit Id: 0000.0000.0001.01
State: Up HoldTime: 21s Type: L1(L1L2) PRI: 64
System Id: 0000.0000.0003
Interface: Vlan-interface100 Circuit Id: 0000.0000.0001.01
State: Up HoldTime: 27s Type: L1 PRI: 64
System Id: 0000.0000.0002
Interface: Vlan-interface100 Circuit Id: 0000.0000.0001.01
State: Up HoldTime: 28s Type: L2(L1L2) PRI: 64
System Id: 0000.0000.0004
Interface: Vlan-interface100 Circuit Id: 0000.0000.0001.01
State: Up HoldTime: 30s Type: L2 PRI: 64
# Display information about IS-IS interfaces of Switch A.
[SwitchA] display isis interface
Interface information for ISIS(1)
---------------------------------
Interface: Vlan-interface100
Id IPV4.State IPV6.State MTU Type DIS
001 Up Down 1497 L1/L2 Yes/Yes
n
After the DIS priority configuration, Switch A becomes the Level-1-2 DIS, and the
pseudonode is 0000.0000.0001.01.
# Display information about IS-IS neighbors and interfaces of Switch C.
[SwitchC] display isis peer
Peer information for ISIS(1)
----------------------------
System Id: 0000.0000.0002
Interface: Vlan-interface100 Circuit Id: 0000.0000.0001.01
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