Cisco Catalyst 2000 Configuration Handbook page 150

Bridge ID Priority
Address
Hello Time
Port
Name Port ID Prio Cost Sts
———- ———- —— —— —-
Fa0/1 128.13 128
Fa0/2 128.14 128
...(output removed)...
Gi0/1 128. 67 128
Gi0/2 128.75 128
Here, STP port 67 corresponds to the physical interface Gigabit0/1. The output
also shows a bonus piece of information: the MAC address of the designated
bridge on the root port.
d. Identify the designated bridge on the root port:
(exec) show cdp neighbor type mod/num detail
The neighboring switch can be found as a Cisco Discovery Protocol (CDP)
neighbor if CDP is in use. Look for the neighbor's IP address in the output. An
example follows:
switch# show cdp neighbor gigabitEthernet 0/1 detail
————————————
Device ID: SCA03320048(Switch-B)
Entry address(es):
IP address: 192.168.254.17
Platform: WS-C6509,
Interface: GigabitEthernet0/1,
Holdtime : 120 sec
After the IP address has been found, you can open a Telnet session to the neigh-
boring switch.
Chapter 7: Spanning Tree Protocol (STP) 129
49152
0005.32f5.45ef
2 sec Max Age 20 sec
Designated
Cost Bridge ID
—— ——————— ———-
3100 BLK 3006 0005.32f5.45ef 128.13
3019 FWD 3006 0005.32f5.45ef 128.14
3004 FWD 2 00d0.ff8a.2a15 129.7
4 FWD 3006 0005.32f5.45ef 128.75
Capabilities: Trans-Bridge Switch
Port ID (outgoing port): 5/7
Forward Delay 15 sec
Port ID