D-Link DGS-6600-48TS Configuration Guide - Page 141

Volume 3-Layer 2 Configurations / Chapter 14-Spanning Tree Protocol (STP) Configuration STP Configuration Commands Data Rate Path Cost 100 Mb/s 200,000 1 Gb/s 20,000 10 Gb/s 2000 100 Gb/s 200 1 Tb/s 20 Table 14-1 Auto-assigned Path Cost for an Interface Use the following commands to specify the path cost for a port: Command spanning-tree cost COST no spanning-tree cost COST Explanation Explicitly specifies the link path cost for a port. Specifies that the link path cost for a port should be auto-determined. In the following example, the user configures the port cost of Ethernet interface 4.7 to be 20000: DGS-6600:2>enable DGS-6600:15#configure terminal DGS-6600:15(config)#interface eth4.7 DGS-6600:15(config-if)#spanning-tree cost 20000 DGS-6600:15(config-if)#end Specifying the Timers The user can specify the hello time, forward delay time, and maximum age to be used in the STP or RSTP state machine computation. Use the following command to configure the Spanning Tree timers: Command Explanation spanning-tree [hello-time SECONDS | Specifies the values for the Spanning Tree timers. forward-time SECONDS | max-age SECONDS] In the following example, the user configures the STP hello timer to be 1 second, the forward time to be 16 seconds, and the maximum aging time to be 21 seconds: DGS-6600:2>enable DGS-6600:15#configure terminal DGS-6600:15(config)#spanning-tree hello-time 1 DGS-6600:15(config)#spanning-tree forward-time 16 DGS-6600:15(config)#spanning-tree max-age 21 DGS-6600:15(config)#end DGS-6600 Configuration Guide 141