Cisco Nexus 5000 Series Switch CLI Software Configuration Guide (OL-16597-01, July 2009)

PurposeCommand or Action
Configures the specified interfaces to be spanning network
ports. If you enable Bridge Assurance, it automatically
switch(config-if)# spanning-tree
port type network
Step 3
runs on network ports. By default, spanning tree ports are
normal port types.
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.
We recommend that you enable BPDU Guard on all edge ports.Note
Before You Begin
Ensure that STP is configured.
Ensure that you have configured some spanning tree edge ports.
Procedure
PurposeCommand or Action
Enters configuration mode.switch# configure terminal
Step 1
Enables BPDU Guard by default on all spanning
tree edge ports. By default, global BPDU Guard
is disabled.
switch(config)# spanning-tree port type
edge bpduguard default
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.
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
206 OL-16597-01
About STP Extensions
Enabling BPDU Guard Globally