Cisco ASR 9000 Series - Page 621

Examples
The following example shows the output from the show spanning-tree mstag bpdu interface command:
RP/0/RSP0/CPU0:router#show spanning-tree mstag foo bpdu interface GigabitEthernet 0/0/0/0
Transmitted:
MSTI 0 (CIST):
ProtocolIdentifier: 0
ProtocolVersionIdentifier: 3
BPDUType: 2
CISTFlags: Top Change Ack 0
Agreement 1
Forwarding 1
Learning 1
Role 3
Proposal 0
Topology Change 0
CISTRootIdentifier: priority 8, MSTI 0, address 6969.6969.6969
CISTExternalPathCost: 0
CISTRegionalRootIdentifier: priority 8, MSTI 0, address 6969.6969.6969
CISTPortIdentifierPriority: 8
CISTPortIdentifierId: 1
MessageAge: 0
MaxAge: 20
HelloTime: 2
ForwardDelay: 15
Version1Length: 0
Version3Length: 80
FormatSelector: 0
Name: 6969:6969:6969
Revision: 0
MD5Digest: ac36177f 50283cd4 b83821d8 ab26de62
CISTInternalRootPathCost: 0
CISTBridgeIdentifier: priority 8, MSTI 0, address 6969.6969.6969
CISTRemainingHops: 20
MSTI 1:
MSTIFlags: Master 0
Agreement 1
Forwarding 1
Learning 1
Role 3
Proposal 0
Topology Change 0
MSTIRegionalRootIdentifier: priority 8, MSTI 1, address 6969.6969.6969
MSTIInternalRootPathCost: 0
MSTIBridgePriority: 1
MSTIPortPriority: 8
MSTIRemainingHops: 20
Related Commands
DescriptionCommand
Enables MSTAG packet debugging.debug spanning-tree mstag packet, on page 483
Displays the values currently used for populating the BPDUs
sent by all ports.
show spanning-tree mstag, on page 604
Displays details of the last topology change that occurred
for each pair of port and instance.
show spanning-tree mstag topology-change
flushes, on page 608
Enters the MST Access Gateway configuration submode.spanning-tree mstag, on page 625
Cisco ASR 9000 Series Aggregation Services Router VPN and Ethernet Services Command Reference, Release
6.1.x
607
Multiple Spanning Tree Protocol Commands
show spanning-tree mstag bpdu interface