Field
Description
Guard Type
Type of STP guard configured (Root, Loop, or BPDU guard).
Example (Guard)
FTOS#show spanning-tree 0 guard
Interface
Name Instance Sts Guard type
--------- -------- --------- ----------
Gi 0/1 0 INCON(Root) Rootguard
Gi 0/2 0 LIS Loopguard
Gi 0/3 0 EDS (Shut) Bpduguard
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.
C-Series, E-Series, S-Series, Z-Series, S4810
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
Enter the STP instance ID. The range is 0.
cost
cost
Enter the keyword
cost
followed by a number as the cost. The range
is 1 to 65535. The defaults are:
•
100 Mb/s Ethernet interface = 19.
•
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
(C-, S-, and E-Series TeraScale and S4810 only) Enter the keyword
loopguard
to enable STP loop guard on a port or port-channel
interface.
rootguard
(C-, S-, and E-Series TeraScale and S4810 only) Enter the keyword
rootguard
to enable STP root guard on a port or port-channel
interface.
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Summary of Contents for Force10 Z9000
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