Troubleshooting guide

10-28
ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Chapter 10 Troubleshooting Ethernet, ATM Uplink, and POS Uplink Interfaces
Troubleshooting Gigabit Ethernet Interface Modules
Displaying Enhanced Gigabit Ethernet Interface Module Configurations
To display the enhanced Gigabit Ethernet interface module configuration and status, use the following
commands:
Rx (Receive) Green A port is receiving a packet. Green for
approximately 50 ms.
Off No signal is detected.
Op-Det Green An optical signal from another Gigabit Ethernet
module is detected. It is steadily on when there is
a Gigabit connection.
Off No signal is detected.
Tx (Transmit) Green A port is transmitting a packet. Green for
approximately 50 ms.
Off No signal is detected.
Rx Sync Green A port is synchronized with the port from which it
is receiving data.
Table 10-5 Two-Port Enhanced Gigabit Ethernet Interface Module LED Descriptions (continued)
LED State Description
Command Purpose
show interfaces gigabitEthernet
card/subcard/port
Shows the status of the physical interface.
show controllers gigabitEthernet
card/subcard/port
Shows the interface memory management
and error counters.
show controllers c8500 counters Shows the counters on the switch router
interfaces.