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
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
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
MSTIRegionalRootIdentifier: priority 8, MSTI 1, address 6969.6969.6969
MSTIInternalRootPathCost: 0
MSTIBridgePriority: 1
MSTIPortPriority: 8
MSTIRemainingHops: 20
Related Commands
Command
debug spanning-tree mstag packet, on page 483
show spanning-tree mstag, on page 604
show spanning-tree mstag topology-change
flushes, on page 608
spanning-tree mstag, on page 625
0
Agreement 1
Forwarding 1
Learning 1
Role 3
Proposal 0
Topology Change 0
0
Agreement 1
Forwarding 1
Learning 1
Role 3
Proposal 0
Topology Change 0

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

show spanning-tree mstag bpdu interface
Description
Enables MSTAG packet debugging.
Displays the values currently used for populating the BPDUs
sent by all ports.
Displays details of the last topology change that occurred
for each pair of port and instance.
Enters the MST Access Gateway configuration submode.
6.1.x
607