BigIron RX Series Configuration Guide 103553-1001986-01802.1s Multiple Spanning Tree Protocol 40Configuring MSTPTo configure a switch for MSTP, you could configure the name and the revision on each switch thatis being configured for MSTP. This name is unique to each switch. You must then create an MSTPInstance and assign an ID. VLANs are then assigned to MSTP instances. These instances must beconfigured on all switches that interoperate with the same VLAN assignments. Port cost, priorityand global parameters can then be configured for individual ports and instances. In addition,operational edge ports and point-to-point links can be created and MSTP can be disabled onindividual ports.Each of the commands used to configure and operate MSTP are described in the following:• “Setting the MSTP name”• “Setting the MSTP revision number”• “Configuring an MSTP instance”• “Configuring port priority and port path cost”• “Configuring bridge priority for an MSTP instance”• “Setting the MSTP global parameters”• “Setting ports to be operational edge ports”• “Setting point-to-point link”• “Disabling MSTP on a port”• “Forcing ports to transmit an MSTP BPDU”• “Enabling MSTP on a switch”Setting the MSTP nameEach switch that is running MSTP is configured with a name. It applies to the switch which can havemany different VLANs that can belong to many different MSTP regions. By default, the name is theMAC address of the device.To configure an MSTP name, use a command such as the following at the Global Configurationlevel.BigIron RX(config)# mstp name brocadeSyntax: [no] mstp name <name>The name parameter defines an ASCII name for the MSTP configuration. The default name is theMAC address of the switch expressed as a string.Setting the MSTP revision numberEach switch that is running MSTP is configured with a revision number. It applies to the switchwhich can have many different VLANs that can belong to many different MSTP regions.To configure an MSTP revision number, use a command such as the following at the GlobalConfiguration level.BigIron RX(config)# mstp revision 4Syntax: [no] mstp revision <revision-number>
