Stp Extensions Configuration Guidelines; Configuring Stp Extensions; Configuring Spanning Tree Port Types Globally - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual

About STP Extensions

Configuring STP Extensions

STP Extensions Configuration Guidelines

When configuring STP extensions, follow these guidelines:
• Configure all access and trunk ports connected to hosts as edge ports.
• Bridge Assurance runs only on point-to-point spanning tree network ports. You must configure each
• Loop Guard does not run on spanning tree edge ports.
• Enabling Loop Guard on ports that are not connected to a point-to-point link will not work.
• You cannot enable Loop Guard if Root Guard is enabled.

Configuring Spanning Tree Port Types Globally

The spanning tree port type designation depends on the type of device the port is connected to, as follows:
• Edge—Edge ports are connected to hosts and can be either an access port or a trunk port.
• Network—Network ports are connected only to switches or bridges.
• Normal—Normal ports are neither edge ports nor network ports; they are normal spanning tree ports.
You can configure the port type either globally or per interface. By default, the spanning tree port type is
normal.
Before You Begin
Ensure that STP is configured.
Ensure that you are configuring the ports correctly for the type of device to which the interface is connected.
Procedure
Step 1
Step 2
Step 3
OL-16597-01
side of the link for this feature.
These ports can be connected to any type of device.
Command or Action
switch# configure terminal
switch(config)# spanning-tree
port type edge default
switch(config)# spanning-tree
port type network default
Purpose
Enters configuration mode.
Configures all interfaces as edge ports. This assumes all ports are
connected to hosts/servers. Edge ports immediately transition to
the forwarding state without passing through the blocking or
learning state at linkup. By default, spanning tree ports are normal
port types.
Configures all interfaces as spanning tree network ports. This
assumes all ports are connected to switches and bridges. If you
enable Bridge Assurance, it automatically runs on network ports.
By default, spanning tree ports are normal port types.
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
Configuring STP Extensions
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