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Chapter 9
Configuring Spanning-Tree PortFast, UplinkFast, BackboneFast, and Loop Guard
This example shows how to disable PortFast BPDU guard on the switch and verify the configuration:
Console> (enable) set spantree portfast bpdu-guard disable
Spantree portfast bpdu-guard disabled on this switch.
Console> (enable) show spantree summary
Summary of connected spanning tree ports by vlan
Portfast bpdu-guard disabled for bridge.
Uplinkfast disabled for bridge.
Backbonefast disabled for bridge.
Vlan
----- -------- --------- -------- ---------- ----------
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50
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152
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524
570
801
802
850
917
999
1003
1005
----- -------- --------- -------- ---------- ----------
Total
Console> (enable)
Configuring PortFast BPDU Filtering on the Switch
These sections describe how to configure PortFast BPDU filtering on the switch:
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OL-8978-04
Blocking Listening Learning Forwarding STP Active
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Enabling PortFast BPDU Filtering, page 9-14
Disabling PortFast BPDU Filtering, page 9-15
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Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
Configuring PortFast BPDU Filtering on the Switch
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9-13
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