Configuring IEEE 802.1s MST
Router# show spanning-tree mst 1 detail
###### MST01
Bridge
Root
FastEthernet4/4 of MST01 is backup blocking
Port info
Designated root
Designated bridge
Timers:message expires in 5 sec, forward delay 0, forward transitions 0
Bpdus (MRecords) sent 123, received 1188
FastEthernet4/5 of MST01 is designated forwarding
Port info
Designated root
Designated bridge
Timers:message expires in 0 sec, forward delay 0, forward transitions 1
Bpdus (MRecords) sent 1188, received 123
FastEthernet4/48 of MST01 is boundary forwarding
Port info
Designated root
Designated bridge
Timers:message expires in 0 sec, forward delay 0, forward transitions 1
Bpdus (MRecords) sent 78, received 0
Router# show spanning-tree vlan 10
MST01
Spanning tree enabled protocol mstp
Root ID
Bridge ID
Interface
---------------- ---- --- --------- -------- --------------------------------
Fa4/4
Fa4/5
Router# show spanning-tree summary
Root bridge for:MST01
EtherChannel misconfiguration guard is enabled
Extended system ID
Portfast
PortFast BPDU Guard
Portfast BPDU Filter is disabled by default
Loopguard
UplinkFast
BackboneFast
Pathcost method used is long
Name
---------------------- -------- --------- -------- ---------- ----------
MST00
MST01
---------------------- -------- --------- -------- ---------- ----------
2 msts
Router#
Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide—Release 12.1 E
15-38
vlans mapped:
address 00d0.00b8.1400
this switch for MST01
port id
address 00d0.00b8.1400
address 00d0.00b8.1400
port id
address 00d0.00b8.1400
address 00d0.00b8.1400
port id
address 00d0.00b8.1400
address 00d0.00b8.1400
Priority
32769
Address
00d0.00b8.1400
This bridge is the root
Hello Time
2 sec
Max Age 20 sec
Priority
32769
(priority 32768 sys-id-ext 1)
Address
00d0.00b8.1400
Hello Time
2 sec
Max Age 20 sec
Role Sts Cost
Back BLK 1000
Desg FWD 200000
is enabled
is disabled by default
is disabled by default
is disabled by default
is disabled
is disabled
Blocking Listening Learning Forwarding STP Active
1
1
2
Chapter 15
1-10
priority
32769 (32768 sysid 1)
160.196
priority
priority
32769
priority
32769
128.197
priority
priority
32769
priority
32769
128.240
priority
priority
32769
priority
32769
Forward Delay 15 sec
Forward Delay 15 sec
Prio.Nbr Status
160.196
P2p
128.197
P2p
0
0
2
0
0
2
0
0
4
Configuring STP and IEEE 802.1s MST
160
cost
1000
cost
0
port id
128.197
128
cost
200000
cost
0
port id
128.197
128
cost
200000
cost
0
port id
128.240
3
3
6
78-14099-04