Example 10-87 and Example 10-88 show the IS-IS neighbor tables of two routers, router A and router B, connected to via a serial interface. What is wrong?
Example 10-87. The IS-IS neighbor table of router A, Troubleshooting Exercise 1.
Router_A#show clns is-neighbors detail
System Id Interface State Type Priority Circuit Id Format
0000.00EF.DCBA To0 Up L1L2 64/64 0000.00EF.DCBA.04 Phase V
Area Address(es): 01
IP Address(es): 192.168.11.2
Uptime: 0:09:25
0000.00EF.5678 Se0.17 Up IS 0 /0 00 Phase V
Area Address(es): 01
IP Address(es): 192.168.5.9
Uptime: 1:28:22
0000.00EF.9ABC Se0.18 Up L1L2 0 /0 07 Phase V
Area Address(es): 01
IP Address(es): 192.168.5.13
Uptime: 1:29:45
0000.00EF.1234 Se0.16 Up L1L2 0 /0 06 Phase V
Area Address(es): 01
IP Address(es): 192.168.5.5
Uptime: 1:29:45
Router_A#
Example 10-88. The IS-IS neighbor table of router B, Troubleshooting Exercise 1.
Router_B#show clns is-neighbors detail
System Id Interface State Type Priority Circuit Id Format
0000.00EF.DEF1 Se0.17 Up IS 0 /0 00 Phase V
Area Address(es): 01
IP Address(es): 10.1.1.1
Uptime: 0:11:06
Router_B#
| 
