Spanning-Tree - Dell S6100 Configuration Manual

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
loopguard
rootguard
portfast [bpduguard
[shutdown-on-viol
ation]]
priority priority
Defaults cost = depends on the interface type; priority = 8
Command Modes INTERFACE
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version
9.10(0.0)
9.8(1.0)
9.8(0.0P5)
9.8(0.0P2)
1576 Spanning Tree Protocol (STP)
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.
Enter the keyword loopguard to enable STP loop guard on a port or port-channel
interface.
Enter the keyword rootguard to enable STP root guard on a port or port-channel
interface.
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.
Enter keyword priority then a number as the priority. The range is from zero (0) to 15.
The default is 8.
Description
Introduced on the S6100–ON.
Introduced on the Z9100–ON.
Introduced on the S4048-ON.
Introduced on the S3048-ON.