Configuring Bpdu Skewing On The Switch - Cisco WS-C6506 Software Manual

Chapter 7 Configuring Spanning Tree
Console> (enable) show spantree mst config
Current (NVRAM) MST Region Configuration:
Configuration Name:arthur
Instance VLANs
-------- --------------------------------------------------------------
=======================================================================
NEW MST Region Configuration (Not committed yet)
Configuration Name:arthur
Instance VLANs
-------- --------------------------------------------------------------
1400
=======================================================================
Edit buffer is locked by:Console (pid 143)
Console> (enable) clear spantree mst 1400 vlan 900-998
Edit Buffer modified.
Use 'set spantree mst config commit' to apply the changes
Console> (enable) set spantree mst config commit
Console> (enable) show spantree mst config
Current (NVRAM) MST Region Configuration:
Configuration Name:arthur
Instance VLANs
-------- --------------------------------------------------------------
1400
=======================================================================
Console> (enable)

Configuring BPDU Skewing on the Switch

Commands that support the spanning-tree BPDU skewing allow you to perform these functions:
•
•
•
To change how spanning tree performs BPDU skewing statistics gathering, enter the set spantree
bpdu-skewing command. The bpdu-skewing command is disabled by default.
To configure the BPDU skewing statistics gathering for a VLAN, perform this task in privileged mode:
OL-8978-04
0 1,31-4094
2 2-20
3 21-30
0 1,31-899,1000-4094
2 2-20
3 21-30
900-999
0 1,31-998,1000-4094
2 2-20
3 21-30
999
Enable or disable BPDU skewing. The default is disabled.
Modify the show spantree summary output to show if the skew detection is enabled and for which
VLANs or PVST+ or MISTP instances the skew was detected.
Provide a display of the VLAN, PVST+, or MISTP instance and the port that is affected by the skew,
including this information:
The last skew duration (in absolute time)
–
The worst skew duration (in absolute time)
–
The date and time of the worst duration
–
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
Configuring BPDU Skewing on the Switch
3 instances
Revision:23703
4 instances
Revision:23703
4 instances
Revision:23703
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