Supermicro SSE-G2252, User Manual

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Chapter 31: Loopback Detection Commands
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C
OMMAND
U
SAGE
•
When the response to a detected loopback condition is set to block user
traffic, loopback detection control frames may untagged or tagged
depending on the port’s VLAN membership type.
•
When the response to a detected loopback condition is set to block user
traffic, ingress filtering for the port is enabled automatically if not
already enabled by the switchport ingress-filtering command. The
port’s original setting for ingress filtering will be restored when
loopback detection is disabled.
•
Use the loopback-detection recover-time command to set the time to
wait before re-enabling an interface shut down by the loopback
detection process.
•
When the loopback detection response is changed, any ports placed in
shutdown state by the loopback detection process will be immediately
restored to operation regardless of the remaining recover time.
E
XAMPLE
This example sets the loopback detection mode to block user traffic.
Console(config)#loopback-detection action block
Console(config)#
loopback-detection
recover-time
This command specifies the interval to wait before the switch automatically
releases an interface from shutdown state. Use the no form to restore the
default setting.
S
YNTAX
loopback-detection recover-time seconds
no loopback-detection recover-time
seconds - Recovery time from shutdown state.
(Range: 60-1,000,000 seconds, or 0 to disable automatic recovery)
D
EFAULT
S
ETTING
60 seconds
C
OMMAND
M
ODE
Global Configuration
C
OMMAND
U
SAGE
•
When the loopback detection mode is changed, any ports placed in
shutdown state by the loopback detection process will be immediately
restored to operation regardless of the remaining recover time.
•
If the recovery time is set to zero, all ports placed in shutdown state
can be restored to operation using the loopback-detection release
command. To restore a specific port, use the no shutdown command.