Spanning-Tree Bpdufilter - Cisco AP775A - Nexus Converged Network Switch 5010 Command Reference Manual

Chapter 2 Ethernet Commands
S e n d c o m m e n t s t o n x 5 0 0 0 - d o c f e e d b a c k @ c i s c o . c o m

spanning-tree bpdufilter

To enable BPDU Filtering on the interface, use the spanning-tree bpdufilter command. To return to the
default settings, use the no form of this command.
Syntax Description
enable
disable
Command Default The setting that is already configured when you enter the
default
Command Modes Interface configuration mode
Command History Release
4.0(0)N1(1a)
Usage Guidelines Entering the spanning-tree bpdufilter enable command to enable BPDU Filtering overrides the
spanning tree edge port configuration. That port then returns to the normal spanning tree port type and
moves through the normal spanning tree transitions.
Caution Be careful when you enter the spanning-tree bpdufilter enable command on specified interfaces.
Explicitly configuring BPDU Filtering on a port this is not connected to a host can cause a bridging loop
because the port will ignore any BPDU that it receives, and the port moves to the STP forwarding state.
Use the
spanning tree edge ports.
Examples This example shows how to explicitly enable BPDU Filtering on the Ethernet spanning tree edge port
1/4:
switch (config)# interface ethernet 1/4
switch(config-if)# spanning-tree bpdufilter enable
Related Commands Command
show spanning-tree
summary
OL-16599-01
spanning-tree bpdufilter {enable | disable}
no spanning-tree bpdufilter
Enables BPDU Filtering on this interface.
Disables BPDU Filtering on this interface.
command.
Modification
This command was introduced.
spanning-tree port type edge bpdufilter default
Description
Displays information about the spanning tree state.
spanning-tree port type edge bpdufilter
command to enable BPDU Filtering on all
Cisco Nexus 5000 Series Command Reference
spanning-tree bpdufilter
2-47