Reference Guide
Parameters
edge-port Enter the keywords edge-port to configure the interface as a
PVST+ edge port.
bpduguard
Enter the keyword portfast to enable Portfast to move the
interface into Forwarding mode immediately after the root fails.
Enter the keyword bpduguard to disable the port when it receives a
BPDU.
shutdown-on-
violation
(OPTIONAL) Enter the keywords shutdown-on-violation to
hardware disable an interface when a BPDU is received and the port
is disabled.
err-disable Enter the keywords err-disable to enable the port to be put into
the error-disable state (EDS) if an error condition occurs.
vlan
vlan-range
Enter the keyword vlan then the VLAN numbers. The range is from 1
to 4094.
cost
number
Enter the keyword cost then the port cost value. The range is from 1
to 200000.
Defaults:
• 100 Mb/s Ethernet interface = 200000.
• 1-Gigabit Ethernet interface = 20000.
• 10-Gigabit Ethernet interface = 2000.
• Port Channel interface with one 100 Mb/s Ethernet = 200000.
• Port Channel interface with one 1 Gigabit Ethernet = 20000.
• Port Channel interface with one 10 Gigabit Ethernet = 2000.
• Port Channel with two 1 Gigabit Ethernet = 18000.
• Port Channel with two 10 Gigabit Ethernet = 1800.
• Port Channel with two 100 Mbps Ethernet = 180000.
priority
value
Enter the keyword priority then the Port priority value in
increments of 16. The range is from 0 to 240. The default is 128.
loopguard (C-, S-, and E-Series TeraScale only) Enter the keyword loopguard
to enable loop guard on a PVST+ port or port-channel interface.
rootguard (C-, S-, and E-Series TeraScale only) Enter the keyword rootguard
to enable root guard on a PVST+ port or port-channel interface.
Defaults Not configured.
Command Modes INTERFACE
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant
FTOS Command Line Reference Guide
.
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
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