Cisco MWR 2941 Command Reference Manual page 626

show spanning-tree mst
cost 0
Designated bridge address 0002.172c.f400 priority 32771 port id
128.193
Timers: message expires in 0 sec, forward delay 0, forward transitions 1
Bpdus (MRecords) sent 254, received 1
FastEthernet4/2 of MST03 is backup blocking
Port info port id 128.194 priority 128 cost
200000
Designated root address 0002.172c.f400 priority 32771
cost 0
Designated bridge address 0002.172c.f400 priority 32771 port id
128.193
Timers: message expires in 2 sec, forward delay 0, forward transitions 1
Bpdus (MRecords) sent 3, received 252
Router#
This example shows how to display MST information for a specific interface:
Router# show spanning-tree mst 0 interface fastethernet 4/1 detail
Edge port: no (trunk) port guard : none
(default)
Link type: point-to-point (point-to-point) bpdu filter: disable
(default)
Boundary : internal bpdu guard : disable
(default)
FastEthernet4/1 of MST00 is designated forwarding
Vlans mapped to MST00 1-2,4-2999,4000-4094
Port info port id 128.193 priority 128 cost
200000
Designated root address 0050.3e66.d000 priority 8193
cost 20004
Designated ist master address 0002.172c.f400 priority 49152
cost 0
Designated bridge address 0002.172c.f400 priority 49152 port id
128.193
Timers: message expires in 0 sec, forward delay 0, forward transitions 1
Bpdus sent 492, received 3
Router#
This example shows how to display the MD5 digest included in the current MSTCI:
Router# show spanning-tree mst configuration digest
Name
Revision
Digest
Pre-std Digest
Router#
This example displays the new master role for all MST instances at the boundary of the region on the
port that is a CIST root port:
Router# show spanning-tree mst interface fastethernet4/9
FastEthernet4/9 of MST00 is root forwarding
Edge port: no
Link type: point-to-point (auto)
Boundary : boundary
Bpdus sent 3428, received 6771
Instance Role Sts Cost
-------- ---- --- --------- -------- -------------------------------
Cisco MWR 2941 Router Command Reference, Release 15.0(1)MR
608
[mst-config]
10 Instances configured 25
0x40D5ECA178C657835C83BBCB16723192
0x27BF112A75B72781ED928D9EC5BB4251
(default)
(RSTP)
Prio.Nbr Vlans mapped
Cisco MWR 2941 Router Command Reference, Release 15.0(1)MR
port guard : none
bpdu filter: disable
bpdu guard : disable
(default)
(default)
(default)
OL-23890-01