Cisco Catalyst 4500 Series Software Configuration Manual page 784

Configuring Bridge Assurance
Configured Pathcost method used is short
Name
---------------------- -------- --------- -------- ---------- ----------
VLAN0199
VLAN0200
VLAN0128
---------------------- -------- --------- -------- ---------- ----------
3 vlans
This example shows how to verify if GigabitEthernet 5/8 (configured as a network port), is in a normal
state. (From the show spanning-tree summary output above, we know that Bridge Assurance is enabled
on GigabitEthernet 5/8).
Switch# show spanning-tree vlan
Sep 17 09:51:36.370 PDT: %SYS-5-CONFIG_I: Configured from console by console2
VLAN0200
Spanning tree enabled protocol rstp
Root ID
Bridge ID
Interface
------------------- ---- --- --------- -------- --------------------------------
Gi5/7
Gi5/8
Gi5/9
Gi5/10
This example shows how port GigabitEthernet 5/8 (configured as a network port), is currently in the
Bridge Assurance inconsistent state:
Note
Switch# show spanning-tree vlan
VLAN200
Spanning tree enabled protocol rstp
Root ID
Bridge ID
Interface
---------------- ---- --- --------- -------- --------------------------------
Gia5/8
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
26-14
Blocking Listening Learning Forwarding STP Active
0
0
0
0
Priority 2
Address 7010.5c9c.5200
This bridge is the root
Hello Time 2 sec
Priority 2
Address 7010.5c9c.5200
Hello Time 2 sec
Aging Time 0 sec
Role Sts Cost
Desg FWD 4
Desg FWD 3
Desg FWD 4
Desg FWD 4
The output shows the port type as network and *BA_Inc, indicating that the port is in an
inconsistent state.
Priority 32778
Address 0002.172c.f400
This bridge is the root
Hello Time 2 sec
Priority 32778
Address 0002.172c.f400
Hello Time 2 sec
Aging Time 300
Role Sts Cost
Desg BKN*4
0 0
0 0
0 0
0 0
Max Age 20 sec Forward Delay 15 sec
(priority 0 sys-id-ext 2)
Max Age 20 sec Forward Delay 15 sec
Prio.Nbr Type
128.1 P2p Edge
128.480 P2p Network
128.169 P2p Edge
128.215 P2p Network
Max Age 20 sec Forward Delay 15 sec
(priority 32768 sys-id-ext 10)
Max Age 20 sec Forward Delay 15 sec
Prio.Nbr Type
128.270 Network, P2p *BA_Inc
Chapter 26 Configuring Optional STP Features
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4 4
4 4
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