No Light; Red Light - HP ProCurve 7000dl Series Basic Management And Configuration Manual

Color Meaning

no light

No module is installed, or the interface is not
activated.
red Interface is activated, but there are alarms.
yellow The interface is in loopback mode.
green The Physical Layer is up.
Table 5-1. Check the LEDs
No Light
Ensure that you are checking the LED that corresponds to the slot where the
serial module is installed. Next, view the status of the serial interface by
entering:
ProCurve# show interfaces serial <slot>/<port>
If the serial interface is administratively down, move to the serial interface
configuration mode context and enter:
ProCurve(config-ser 1/1)# no shutdown
The status of the interface should change.

Red Light

If the LED is red, the interface is administratively up, but it is receiving alarms.
View the status of the serial interface by entering:
ProCurve# show interfaces serial <slot>/<port>
Configuring Serial Interfaces for E1- and T1-Carrier Lines
Troubleshooting a Serial Connection
Action
• Use the show interfaces serial <slot>/<port>
command to determine if you need to activate the
interface.
• If the line is administratively down, enter no
shutdown.
• Use the show interfaces serial <slot>/<port>
command to determine what alarms are being
reported.
• Contact the public carrier to cancel the loopback
test. Loopback commands are not available from
the serial interface configuration mode context.
• Enter the show interfaces serial <slot>/<port>
command to ensure that you have configured the
correct protocol for the line. (The protocol is the
logical interface.)
• Check the status of the logical interface and follow
the troubleshooting steps for the protocol you are
using.
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