Cisco Nexus 5500 Series Command Reference Manual page 172

spanning-tree bpdufilter
spanning-tree bpdufilter
To enable bridge protocol data unit (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 spanning-tree port type edge bpdufilter
default command.
Command Modes Interface configuration mode
Command History Release
5.2(1)N1(1)
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 Command
show spanning-tree
summary
Cisco Nexus 5500 Series NX-OS Layer 2 Interfaces Command Reference
1166
spanning-tree bpdufilter {enable | disable}
no spanning-tree bpdufilter
Enables BPDU Filtering on this interface.
Disables BPDU Filtering on this interface.
Modification
This command was introduced.
Description
Displays information about the spanning tree state.
Chapter S Commands
OL-27880-02