Cisco Systems N3KC3064TFAL3 Enabling Rapid PVST+ per VLAN, mode rapid-pvst, switch# configure

Configuring Rapid PVST+

Enabling Rapid PVST+ per VLAN

Note Changing the spanning tree mode disrupts traffic because all spanning tree instances are stopped for the previous mode and started for the new mode.

Procedure

	Command or Action	Purpose
Step 1	switch# configure terminal	Enters configuration mode.
Step 2	switch(config)# spanning-tree	Enables Rapid PVST+ on the switch. Rapid PVST+ is the
	mode rapid-pvst	default spanning tree mode.
		Note	Changing the spanning tree mode disrupts traffic
			because all spanning tree instances are stopped for
			the previous mode and started for the new mode.

This example shows how to enable Rapid PVST+ on the switch:

switch# configure terminal

switch(config)# spanning-tree mode rapid-pvst

Note Because STP is enabled by default, entering the show running-configcommand to view the resulting configuration does not display the command that you entered to enable Rapid PVST+.

Enabling Rapid PVST+ per VLAN

You can enable or disable Rapid PVST+ on each VLAN.

Note Rapid PVST+ is enabled by default on the default VLAN and on all VLANs that you create.

Procedure

	Command or Action	Purpose
Step 1	switch# configure	Enters configuration mode.
	terminal
Step 2	switch(config)#	Enables Rapid PVST+ (default STP) on a per VLAN basis. The
	spanning-tree vlan-range	vlan-rangevalue can be 2 through 4094 (except reserved VLAN
		values).
Step 3	switch(config)# no	(Optional)

spanning-treevlan-rangeDisables Rapid PVST+ on the specified VLAN.

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

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