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Chapter 8
Configuring Spanning Tree PortFast, UplinkFast, and BackboneFast, and Loop Guard
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Console> (enable)
Disabling PortFast BPDU Filtering
To disable PortFast BPDU filtering on a switch, perform this task in privileged mode:
Task
Step 1
Disable PortFast BPDU filteringon the switch.
Step 2
Verify the PortFast BPDU filtering setting.
This example shows how to disable PortFast BPDU filtering on the switch and verify the configuration:
Console> (enable) set spantree portfast bpdu-filter disable
Spantree portfast bpdu-filter disabled on this switch.
Console> (enable) show spantree summary
Summary of connected spanning tree ports by vlan
Portfast bpdu-filter disabled for bridge.
Uplinkfast disabled for bridge.
Backbonefast disabled for bridge.
Vlan
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Console> (enable)
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Blocking Listening Learning Forwarding STP Active
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Blocking Listening Learning Forwarding STP Active
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Blocking Listening Learning Forwarding STP Active
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Software Configuration Guide—Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4
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Command
set spantree portfast bpdu-filter disable
show spantree
show portfast
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Configuring PortFast BPDU Filtering
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Troubleshooting
