Configuring The Port Beacon Led; Configuring A Switch Port Attribute Default Value - Cisco MDS 9000 Series Configuration Manual

Configuring Interfaces
To configure a beacon mode for a specified interface or range of interfaces, perform these steps:
Step 1
Enter configuration mode:
switch# configure terminal
Step 2 Select a Fibre Channel interface and enter interface configuration submode:
switch(config)# interface fc1/1
Step 3
Enable the beacon mode for the interface:
switch(config-if)# switchport beacon
(Optional) Disable the beacon mode for the interface:
switch(config-if)# no switchport beacon
The flashing green light turns on automatically when an external loopback that causes the interfaces to be
Tip
isolated is detected. The flashing green light overrides the beacon mode configuration. The state of the LED is
restored to reflect the beacon mode configuration after the external loopback is removed.

Configuring the Port Beacon LED

To configure the port beacon LEDs on one or both ends of a link, perform this step:
switch# beacon interface fc slot/port {both | local | peer} [status {normal | warning | critical}] [duration
seconds] [frequency number]

Configuring a Switch Port Attribute Default Value

You can configure default values for various switch port attributes. These attributes will be applied globally
to all future switch port configurations, even if you do not individually specify them at that time.
To configure a default value for a switch port attribute, perform these steps:
Step 1
Enter configuration mode:
switch# configure terminal
Step 2
Configure the default setting for the administrative state of an interface as up (the factory default setting is down):
switch(config)# no system default switchport shutdown
This command is applicable only to interfaces for which no user configuration exists for the administrative
Note
state.
(Optional) Configure the default setting for the administrative state of an interface as down:
switch(config)# system default switchport shutdown
Note This command is applicable only to interfaces for which no user configuration exists for the administrative
state.
Cisco MDS 9000 Series Interfaces Configuration Guide, Release 8.x
Configuring the Port Beacon LED
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