Enabling Bpdu Guard Globally; Enabling Bpdu Guard On Specified Interfaces - Cisco Nexus 3000 Series Configuration Manual

Configuring STP Extensions
This example shows how to configure the Ethernet interface 1/4 to be a spanning tree network port:
switch# configure terminal
switch(config)# interface ethernet 1/4
switch(config-if)# spanning-tree port type network

Enabling BPDU Guard Globally

You can enable BPDU Guard globally by default. In this condition, the system shuts down an edge port that
receives a BPDU.
Note We recommend that you enable BPDU Guard on all edge ports.
Before You Begin
Ensure that STP is configured.
Ensure that you have configured some spanning tree edge ports.
Procedure
Step 1
Step 2
This example shows how to enable BPDU Guard on all spanning tree edge ports:
switch# configure terminal
switch(config)# spanning-tree port type edge bpduguard default

Enabling BPDU Guard on Specified Interfaces

You can enable BPDU Guard on specified interfaces. Enabling BPDU Guard shuts down the port if it receives
a BPDU.
You can configure BPDU Guard on specified interfaces as follows:
• spanning-tree bpduguard enable—Unconditionally enables BPDU Guard on the interface.
• spanning-tree bpduguard disable—Unconditionally disables BPDU Guard on the interface.
• no spanning-tree bpduguard—Enables BPDU Guard on the interface if it is an operational edge port
OL-29545-03
Command or Action
switch# configure terminal
switch(config)# spanning-tree port type
edge bpduguard default
and if the spanning-tree port type edge bpduguard default command is configured.
Cisco Nexus 3000 Series NX-OS Layer 2 Switching Configuration Guide, Release 6.x
Enabling BPDU Guard Globally
Purpose
Enters global configuration mode.
Enables BPDU Guard by default on all spanning
tree edge ports. By default, global BPDU Guard
is disabled.
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