89
Figure 28
Network diagram
Table 3
Interface and IP address assignment
Device Interface IP
address
Device
Interface
IP address
Switch A
Loop0
1.1.1.9/32
Switch D
Loop0
4.4.4.9/32
Vlan-int1
10.1.1.1/24
Vlan-int3
30.1.1.2/24
Switch B
Loop0
2.2.2.9/32
Switch C
Loop0
3.3.3.9/32
Vlan-int1
10.1.1.2/24
Vlan-int3
30.1.1.1/24
Vlan-int2
20.1.1.1/24
Vlan-int2
20.1.1.2/24
Configuration procedure
1.
Configure IP addresses and masks for interfaces. (Details not shown.)
2.
Configure IS-IS to advertise interface addresses, including the loopback interface address:
# Configure Switch A.
<SwitchA> system-view
[SwitchA] isis 1
[SwitchA-isis-1] network-entity 00.0005.0000.0000.0001.00
[SwitchA-isis-1] quit
[SwitchA] interface vlan-interface 1
[SwitchA-Vlan-interface1] isis enable 1
[SwitchA-Vlan-interface1] isis circuit-level level-2
[SwitchA-Vlan-interface1] quit
[SwitchA] interface loopback 0
[SwitchA-LoopBack0] isis enable 1
[SwitchA-LoopBack0] isis circuit-level level-2
[SwitchA-LoopBack0] quit
# Configure Switch B.
<SwitchB> system-view
[SwitchB] isis 1
[SwitchB-isis-1] network-entity 00.0005.0000.0000.0002.00
[SwitchB-isis-1] quit
[SwitchB] interface vlan-interface 1
[SwitchB-Vlan-interface1] isis enable 1
[SwitchB-Vlan-interface1] isis circuit-level level-2