F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Network Management Configuration Guide-6PW100

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Interface: Ethernet1/1
Id IPV4.State IPV6.State MTU Type DIS
001 Up Down 1497 L1/L2 No/Yes
The output shows that when the default DIS priority is used, Router B is the Level-1 DIS, and Router
C 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:
# Configure the DIS priority of Firewall.
[Firewall] interface gigabitethernet 1/1
[Firewall-GigabitEthernet1/1] isis dis-priority 100
# Display information about IS-IS neighbors of Router A.
[RouterA] display isis peer
Peer information for ISIS(1)
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System Id: 0000.0000.0002
Interface: GigabitEthernet1/1 Circuit Id: 0000.0000.0001.01
State: Up HoldTime: 29s Type: L1(L1L2) PRI: 64
System Id: 0000.0000.0003
Interface: GigabitEthernet1/1 Circuit Id: 0000.0000.0001.01
State: Up HoldTime: 22s Type: L1 PRI: 64
System Id: 0000.0000.0002
Interface: GigabitEthernet1/1 Circuit Id: 0000.0000.0001.01
State: Up HoldTime: 22s Type: L2(L1L2) PRI: 64
System Id: 0000.0000.0004
Interface: GigabitEthernet1/1 Circuit Id: 0000.0000.0001.01
State: Up HoldTime: 22s Type: L2 PRI: 64
# Display information about IS-IS interfaces of Firewall.
[Firewall] display isis interface
Interface information for ISIS(1)
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Interface: GigabitEthernet1/1
Id IPV4.State IPV6.State MTU Type DIS
001 Up Down 1497 L1/L2 Yes/Yes
The output shows that after the DIS priority configuration, Firewall 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 B.
[RouterB] display isis peer
Peer information for ISIS(1)