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
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Cisco Nexus 5000 Series Command Reference
OL-16599-01
Chapter 2 Ethernet Commands
spanning-tree bpdufilter
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.
spanning-tree bpdufilter
{
enable
|
disable
}
no spanning-tree bpdufilter
Syntax Description
Command Default
The setting that is already configured when you enter the
spanning-tree port type edge bpdufilter
default
command.
Command Modes
Interface configuration mode
Command History
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 port type edge bpdufilter default
command to enable BPDU Filtering on all
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
enable
Enables BPDU Filtering on this interface.
disable
Disables BPDU Filtering on this interface.
Release
Modification
4.0(0)N1(1a)
This command was introduced.
Command
Description
show spanning-tree
summary
Displays information about the spanning tree state.
