Cisco Systems N3KC3064TFAL3 Configuring Spanning Tree Network Ports on Specified Interfaces, Step

Configuring STP Extensions

Configuring STP Extensions

•no spanning-tree port type—This command implicitly enables edge behavior if you define the spanning-tree port type edge default command in global configuration mode. If you do not configure the edge ports globally, the no spanning-tree port type command is equivalent to the spanning-tree port type disable command.

Before You Begin

Ensure that STP is configured.

Ensure that the interface is connected to hosts.

Procedure

	Command or Action	Purpose
Step 1	switch# configure terminal	Enters configuration mode.
Step 2	switch(config)# interface type	Specifies the interface to configure, and enters the interface
	slot/port	configuration mode.
Step 3	switch(config-if)# spanning-tree	Configures the specified access interfaces to be spanning
	port type edge	edge ports. 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.

This example shows how to configure the Ethernet access interface 1/4 to be a spanning tree edge port:

switch# configure terminal switch(config)# interface ethernet 1/4 switch(config-if)# spanning-tree port type edge

Configuring Spanning Tree Network Ports on Specified Interfaces

You can configure spanning tree network ports on specified interfaces.

Bridge Assurance runs only on spanning tree network ports.

This command has three states:

•spanning-tree port type network—This command explicitly configures the port as a network port. If you enable Bridge Assurance globally, it automatically runs on a spanning tree network port.

•spanning-tree port type normal—This command explicitly configures the port as a normal spanning tree port and Bridge Assurance cannot run on this interface.

•no spanning-tree port type—This command implicitly enables the port as a spanning tree network port if you define the spanning-tree port type network default command in global configuration mode. If you enable Bridge Assurance globally, it automatically runs on this port.

Cisco Nexus 3000 NX-OS Layer 2 Switching Configuration Guide, Release 5.0(3)U3(1)

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