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

Multiple Spanning Tree Protocol Commands
Task ID
Task ID
interface
Examples
The following example shows the output from the show spanning-tree mst command, which produces details
on the BPDUs being output and received on a given local interface:
Several received packets can be stored in case of MSTP operating on a shared LAN.
Note
RP/0/RSP0/CPU0:router# show spanning-tree mst a bpdu interface GigabitEthernet0/1/2/2
direction transmit
MSTI 0 (CIST):
Root ID : 0004.9b78.0800
Path Cost : 83
Bridge ID : 0004.9b78.0800
Port ID : 12
Hello Time : 2
...
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, on page 589
show spanning-tree mst configuration, on page
594
show spanning-tree mst errors, on page 596
show spanning-tree mst interface, on page 598
show spanning-tree mst topology-change
flushes, on page 601
spanning-tree mst, on page 623

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

show spanning-tree mst bpdu interface
Operations
read
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 multiple spanning tree protocol status
information.
Displays the VLAN ID to MSTI mapping table.
Displays information about misconfiguration affecting MSTP.
Displays detailed information on the interface state.
Displays details of the last topology change that occurred for
each pair of port and instance.
Enters the MSTP configuration submode
6.1.x
593