HP Cisco MDS 9216 Cisco Nexus 5000 Series Command Reference Release 4.0(1a)N2( - Page 204

spanning-tree mode Chapter 2 Ethernet Commands Send comments to [email protected] spanning-tree mode To switch between Rapid per VLAN Spanning Tree Plus (Rapid PVST+) and Multiple Spanning Tree (MST) Spanning Tree Protocol (STP) modes, use the spanning-tree mode command. To return to the default settings, use the no form of this command. spanning-tree mode {rapid-pvst | mst} no spanning-tree mode Syntax Description rapid-pvst mst Sets the STP mode to Rapid PVST+. Sets the STP mode to MST. Command Default Rapid PVST+. Command Modes Configuration mode Command History Release 4.0(0)N1(1a) Modification This command was introduced. Usage Guidelines You cannot simultaneously run MST and Rapid PVST+ on the switch. Caution Be careful when using the spanning-tree mode command to switch between Rapid PVST+ and MST modes. When you enter the command, all STP instances are stopped for the previous mode and are restarted in the new mode. Using this command may cause the user traffic to be disrupted. Examples This example shows how to switch to MST mode: switch(config)# spanning-tree mode mst switch(config-mst)# Related Commands Command show spanning-tree summary Description Displays the information about the spanning tree configuration. 2-56 Cisco Nexus 5000 Series Command Reference OL-16599-01