D-Link DES-3828 Product Manual - Page 293

xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch CLI Manual config stp ports for MSTP, the port is capable of migrating from 802.1d STP to 802.1s MSTP. RSTP and MSTP can coexist with standard STP, however the benefits of RSTP and MSTP are not realized on a port where an 802.1d network connects to an 802.1w or 802.1s enabled network. Migration should be set as yes on ports connected to network stations or segments that are capable of being upgraded to 802.1w RSTP or 802.1s MSTP on all or some portion of the segment. edge [true | false] - true designates the port as an edge port. Edge ports cannot create loops, however an edge port can lose edge port status if a topology change creates a potential for a loop. An edge port normally should not receive BPDU packets. If a BPDU packet is received it automatically loses edge port status. false indicates that the port does not have edge port status. p2p [true | false | auto] - true indicates a point-to-point (P2P) 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. fbpdu [enable | disable] − Allows the forwarding of STP BPDU packets from other network devices when STP is disabled on the Switch. This function can only be in use when STP is globally disabled and forwarding BPDU packets is enabled. The default is enabled and BPDU packets will not be forwarded. Restrictions Only Administrator or Operator-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. DES-3800:admin#config stp ports 1-5 externalCost 19 hellotime 5 migrate yes state enable Command: config stp ports 1-5 externalCost 19 hellotime 5 migrate yes state enable Success. DES-3800:admin# 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 5 STP instances on the Switch (one internal CIST, unchangeable) and the user may create up to 4 instance IDs for the Switch. - Enter a value between 1 and 4 to identify the Spanning Tree instance on the Switch. Only Administrator or Operator-level users can issue this command. Example usage: 289