3-46
Cisco 12404 Internet Router Installation and Configuration Guide
OL-11636-01
Chapter 3 Installing the Cisco 12404 Internet Router
Starting the Router and Observing Initial Conditions
•
2 Ethernet port-selection LEDs labeled PRIMARY.These two LEDs, when
on, identify which of the two Ethernet connections are selected. Because both
ports are supported on the PRP, the LED on port ETH0 is always on. The
ETH1 LED goes on when it is selected.
Figure 3-27
PRP LEDs
Line Card Interfaces Using the Line Card LEDs
During the line card boot process, which occurs immediately after the RP boot
process, observe the alphanumeric LED displays on each line card (
The alphanumeric LED displays on a line card are located in the same place as on
the RP. The system attempts to boot identical line cards in parallel. Further, the
system boots line cards as soon as they are powered on and become available for
backup.
LINK
Indicates link activity
EN
Indicates the port is enabled
TX
Indicates data transmission
RX
Indicates data reception
RX
TX
PRIMARY
SLO
T-1
SLO
T-0
LINK
EN
RX
TX
ETH 1
ETH 0
LINK
PRIMARY
EN
70693
todd.book Page 46 Tuesday, November 27, 2007 6:02 PM