Interface: Ethernet1/1
State: Up
HoldTime: 23s
# Display information about IS-IS interfaces of Router A.
[RouterA] display isis interface
Interface: Ethernet1/1
Id
IPv4.State
001
Up
# Display IS-IS interfaces of Router C.
[RouterC] display isis interface
Interface: Ethernet1/1
Id
IPv4.State
001
Up
# Display information about IS-IS interfaces of Router D.
[RouterD] display isis interface
Interface: Ethernet1/1
Id
IPv4.State
001
Up
The output shows that when the default DIS priority is used, Router C is the DIS for Level-1, and
Router D is the DIS for Level-2. The pseudonodes of Level-1 and Level-2 are 0000.0000.0003.01
and 0000.0000.0004.01.
# Configure the DIS priority of Router A.
[RouterA] interface ethernet 1/1
[RouterA-Ethernet1/1] isis dis-priority 100
# Display information about IS-IS neighbors of Router A.
[RouterA] display isis peer
System Id: 0000.0000.0002
Interface: Ethernet1/1
State: Up
HoldTime: 29s
System Id: 0000.0000.0003
Interface: Ethernet1/1
Circuit Id: 0000.0000.0004.01
Type: L2
Interface information for IS-IS(1)
---------------------------------
IPv6.State
MTU
Down
1497
Interface information for IS-IS(1)
---------------------------------
IPv6.State
MTU
Down
1497
Interface information for IS-IS(1)
---------------------------------
IPv6.State
MTU
Down
1497
Peer information for IS-IS(1)
----------------------------
Circuit Id: 0000.0000.0001.01
Type: L1(L1L2)
Circuit Id: 0000.0000.0001.01
159
PRI: 64
Type
DIS
L1/L2
No/No
Type
DIS
L1/L2
Yes/No
Type
DIS
L1/L2
No/Yes
PRI: 64