Cisco 10000 Series Troubleshooting Manual page 34

Troubleshooting the OC-12 Packet-Over-SONET Line Card
Figure 4-1
CISCO
10000
Cisco 10000 Series Router Troubleshooting Guide
4-2
OC-12 POS line card LEDs
LED Status
Fail Yellow Yellow
Off
Rx (receive) Green
Off
Tx (transmit) Green
Off
Carrier Green
Off
Chapter 4
Description
A major failure has disabled the
line card.
The line card is operating
properly.
Receiving traffic.
Not receiving traffic.
Transmitting traffic.
Not transmitting traffic.
Carrier detected.
Carrier not detected.
Troubleshooting Line Cards
OL-0439-02