Troubleshooting The Channelized T3 Line Card - Cisco 10000 Series Troubleshooting Manual

Troubleshooting the Channelized T3 Line Card

Troubleshooting the Channelized T3 Line Card
Figure 4-2
operation.
Figure 4-2
CISCO
10000
Cisco 10000 Series Router Troubleshooting Guide
4-4
describes the LEDs on the channelized T3 line card faceplate to help you verify proper
LED States on the Channelized T3 Line Card
LED Status
Fail Yellow
Off
Carrier (carrier detect) Green
Off
Alarm Yellow
Off
Loop (active loop) Yellow
Off
Chapter 4
Description
A major failure has disabled the
line card.
The line card is operating
properly.
Carrier detected; the port is
able to pass traffic.
No carrier detected; the port is
not able to pass traffic.
Indicates an alarm condition at
DS1, AIS, DS1 remote,
DS1 OOF, DS3 OOF, DS3 AIS,
or DS3 FERF 1 level.
No alarm condition.
Port is in a loopback state and
not enabled for data traffic.
Port is not in a loopback state.
Troubleshooting Line Cards
OL-0439-02