Netgear XCM8810 Chassis Hardware Installation Guide - Page 779

NETGEAR 8800 Chassis Switch CLI Manual If you configure MSTP, all member VLANs in an MSTP region are protected VLANs. These VLANs do not transmit or receive STP BPDUs, but they are affected by STP state changes communicated by the CIST to the MSTP regions. MSTIs cannot share the same protected VLAN; however, any port in a protected VLAN can belong to multiple MSTIs. Automatically Inheriting Ports-MSTP Only In an MSTP environment, whether you manually or automatically bind a port to an MSTI in an MSTP region, the switch automatically binds that port to the CIST. The CIST handles BPDU processing for itself and all of the MSTIs; therefore, the CIST must inherit ports from the MSTIs in order to transmit and receive BPDUs. Displaying STP Information To view STP configuration status of the ports on a VLAN, use the following command: show vlan stpd Example The examples in this section assume that you have already removed the ports from the Default VLAN. To automatically add ports to an STPD running 802.1D, EMISTP, or PVST+ and to expand the boundary of the STPD, you must complete the following tasks: • Create the carrier VLAN. • Assign a VLAN ID to the carrier VLAN. • Add ports to the carrier VLAN. • Create an STPD (or use the default, S0). • Enable autobind on the STPDs carrier VLAN. • Configure the STPD tag (the STPD ID must be identical to the VLAN ID of the carrier VLAN in the STP domain). • Enable STP. The following example enables autobind on an STPD named s8 after creating a carrier VLAN named v5: create vlan v5 configure vlan v5 tag 100 configure vlan v5 add ports 1:1-1:20 tagged create stpd s8 enable stpd s8 auto-bind v5 configure stpd s8 tag 100 enable stpd s8 To automatically add ports to the CIST STPD and to expand the boundary of the STPD, you must complete the following tasks: • Create a VLAN or use the Default VLAN. (In this example, the Default VLAN is used.) Chapter 17. STP Commands | 779