Dell S3100 EMC Command Line Reference Guide for the Series 9.14.2.2 - Page 1765

spanning-tree Assigns a Layer 2 interface to STP instance 0 and configures a port cost or port priority, or enables loop guard, root guard, or the Portfast feature on the interface. Syntax spanning-tree stp-id {cost cost | {loopguard | rootguard} | portfast [bpduguard [shutdown-on-violation]] | priority priority} To disable Spanning Tree group on an interface, use the no spanning-tree stp-id {cost cost | {loopguard | rootguard} | portfast [bpduguard [shutdown-on-violation]] | priority priority} command. Parameters stp-id cost cost Enter the STP instance ID. The range is 0. Enter the keyword cost then a number as the cost. The range is from 1 to 65535. The defaults are: • 1-Gigabit Ethernet interface = 4. • 10-Gigabit Ethernet interface = 2. • Port Channel interface with 100 Mb/s Ethernet = 18. • Port Channel interface with 1 Gigabit Ethernet = 3. • Port Channel interface with 10 Gigabit Ethernet = 1. loopguard Enter the keyword loopguard to enable STP loop guard on a port or port-channel interface. rootguard Enter the keyword rootguard to enable STP root guard on a port or port-channel interface. portfast [bpduguard [shutdown-on-viol ation]] Enter the keyword portfast to enable Portfast to move the interface into Forwarding mode immediately after the root fails. Enter the optional keyword bpduguard to disable the port when it receives a BPDU. Enter the optional keyword shutdown-on-violation to hardware disable an interface when a BPDU is received and the port is disabled. priority priority Enter keyword priority then a number as the priority. The range is from zero (0) to 15. The default is 8. Defaults Command Modes Command History cost = depends on the interface type; priority = 8 INTERFACE This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide. Version 9.10(0.1) 9.10(0.0) 9.10(0.0) 9.8(2.0) Description Introduced on the S6010-ON and S4048T-ON. Introduced on the S3148. Introduced on the S6100-ON. Introduced on the S3100 series. Spanning Tree Protocol (STP) 1765