Cisco Asr 9000 Series Aggregation Services Router Vpn And Ethernet Services Command Reference, Release - Cisco ASR 9000 Series Reference Manual

show spanning-tree mst
Operating in Provider Bridge mode
MSTI 0 (CIST):
VLANS Mapped: 1-100, 500-1000, 1017
Root ID
Bridge ID
Interface
Name
----------------------
GigabitEthernet0/1/2/1
GigabitEthernet0/1/2/2
...
The following example shows the output from the show spanning-tree mst command when the brief and
blocked-ports keywords are used:
RP/0/RSP0/CPU0:router# show spanning-tree mst a brief
MSTI 0 (CIST):
VLAN IDs: 1-100, 500-1000, 1017
This is the Root Bridge
MSTI 1:
VLAN IDS: 101-499
Root Port GigabitEthernet0/1/2/2
...
RP/0/RSP0/CPU0:router# show spanning-tree mst blocked-ports
MSTI 0 (CIST):
Interface
Name
----------------------
GigabitEthernet0/0/4/4
...
Related Commands
Command
debug spanning-tree mst packet, on page 479
debug spanning-tree mst protocol-state, on
page 481
show l2vpn mstp port, on page 585
show l2vpn mstp vlan, on page 587
show spanning-tree mst bpdu interface, on
page 592
show spanning-tree mst configuration, on page
594
show spanning-tree mst errors, on page 596

Cisco ASR 9000 Series Aggregation Services Router VPN and Ethernet Services Command Reference, Release

6.1.x
590
Priority 4097
Address 0004.9b78.0800
This bridge is the root
Hello Time 2 sec Max Age 20 sec
Priority 4097 (priority 4096 sys-id-ext 1)
Address 0004.9b78.0800
Hello Time 2 sec Max Age 20 sec
Port ID
Prio.Nbr Cost
-------- ------ ---------
128.65 20000
128.66 20000
, Root Bridge ID 0002.9b78.0812
Port ID
Prio.Nbr Cost
-------- ------ ---------
128.196
Multiple Spanning Tree Protocol Commands
Forward Delay 15 sec
Forward Delay 15 sec
Designated
Role State Cost Bridge ID
------------------------ --------
DSGN FWD 0 4097 0004.9b78.0800 128.65
DSGN FWD 0 4097 0004.9b78.0800 128.66
Designated
Role State Cost Bridge ID
------------------------ --------
200000 ALT BLK 0
Description
Enables debugging for sent and received MSTP packets.
Enables debugging protocol-state changes such as port role
or state changes, topology change notification.
Displays the internal MSTI number and number of ports for
each VLAN.
Displays the Multiple Spanning Tree Protocol (MSTP) state
for the virtual local area network (VLAN) on a given interface.
Displays the contents of MSTP BPDUs being sent and
received on a particular interface.
Displays the VLAN ID to MSTI mapping table.
Displays information about misconfiguration affecting MSTP.
Port ID
Prio.Nbr
Port ID
Prio.Nbr
4097 0004.9b78.0800 128.195