Verifying Stp Extension Configuration - Cisco Nexus 5000 Series Configuration Manual

Verifying STP Extension Configuration

SUMMARY STEPS
1. switch# configure terminal
2. switch(config)# interface type slot/port
3. switch(config-if)# spanning-tree guard {loop | root | none}
DETAILED STEPS
Command or Action
Step 1 switch# configure terminal
Step 2 switch(config)# interface type slot/port
Step 3 switch(config-if)# spanning-tree guard
{loop | root | none}
This example shows how to enable Root Guard on Ethernet port 1/4:
switch# configure terminal
switch (config)# interface ethernet 1/4
switch(config-if)# spanning-tree guard root
Verifying STP Extension Configuration
To display the configuration information for the STP extensions, perform one of the following tasks:
Command
switch# show running-config spanning-tree [all]
switch# show spanning-tree [options]
Cisco Nexus 5000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.0(3)N1(1)
214
Purpose
Enters configuration mode.
Specifies the interface to configure, and enters the interface
configuration mode.
Enables or disables either Loop Guard or Root Guard for the specified
interface. By default, Root Guard is disabled by default, and Loop
Guard on specified ports is also disabled.
Note Loop Guard runs only on spanning tree normal and network
interfaces.
Purpose
Displays the current status of spanning tree on the
switch
Displays selected detailed information for the current
spanning tree configuration.
Configuring STP Extensions