D-Link 3312SR Reference Manual - Page 80

DGS-3312SR Layer 3 Gigabit Switch config stp ports Restrictions shared link. P2P ports are similar to edge ports however they are restricted in that a P2P port must operate in full-duplex. Like edge ports, P2P ports transition to a forwarding state rapidly thus benefiting from RSTP. A p2p value of false indicates that the port cannot have p2p status. auto allows the port to have p2p status whenever possible and operate as if the p2p status were true. If the port cannot maintain this status (for example if the port is forced to half-duplex operation) the p2p status changes to operate as if the p2p value were false. The default setting for this parameter is auto. state [enable | disable] − Allows STP to be enabled or disabled for the ports specified in the port list. The default is enable. Only administrator-level users can issue this command. Example usage: To configure STP with path cost 19, hellotime set to 5 seconds, migration enable, and state enable for ports 1-5 of module 1. DGS-3312SR:4#config stp ports 1:1-1:5 externalCost 19 hellotime 5 migrate yes state enable Command: config stp ports 1:1-1:5 externalCost 19 hellotime 5 migrate yes state enable Success. DGS-3312SR:4# create stp instance_id Purpose Syntax Description Parameters Restrictions Used to create a STP instance ID for MSTP. create stp instance_id This command allows the user to create a STP instance ID for the Multiple Spanning Tree Protocol. There are 16 STP instances on the Switch (one internal CIST, unchangeable) and the user may create up to 15 instance IDs for the Switch. - Enter a value between 1 and 15 to identify the Spanning Tree instance on the Switch. Only administrator-level users can issue this command. Example usage: To create a spanning tree instance 2: DGS-3312SR:4#create stp instance_id 2 Command: create stp instance_id 2 Success. DGS-3312SR:4# 74