Checking Light Emitting Diode (LED) on the Nortel Ethernet Routing Switch 4500 Series
45
Label
Color and Status
Description
Green, steady
•
During boot-up: The power-on self-test
(POST) is complete and the switch is
operating normally.
•
After boot-up: The switch is running the
agent code successfully.
Status
Off
The switch failed the power-on self-test (POST)
or failed to load the agent code.
Green, steady
The switch is connected to a redundant power
supply unit (RPS) and is receiving power if
necessary.
RPS
Off
The switch is not connected to a RPS, the RPS
is not supplying power, or the DC/DC module
is not supplying power.
Green, steady
The Cascade Up port has a physical connection
to another unit.
Amber, steady
The Cascade Up port has detected an error.
Up
Off
The switch is in stand-alone mode or no link
exists to the Cascade Up port.
Green, steady
The Cascade Down port has a physical
connection to another unit.
Amber, steady
The Cascade Down port detected an error.
Down
Off
The switch is in stand-alone mode or no link
exists to the Cascade Down port.
Green, steady
The switch is the stack base unit.
Green, blinking
A configuration error occurred. Either multiple
base units or no base units are configured in
the stack.
Amber, steady
The switch is operating as the temporary base
unit in the stack configuration.
Base
Off
The switch is not the stack base unit or it is
operating in stand-alone mode.
Port LED state indicators
This section describes the port LED state indicators by color and fluctuation
cues.
The following list describes the three port LEDs:
•
Activity indicates the level of activity on the link.
•
Link indicates the presence of an Ethernet link.
Nortel Ethernet Routing Switch 4500 Series
Installation Guide
NN47205-300 (322811-B)
03.01
Standard
5.1
19 November 2007
Copyright © 2007, Nortel Networks
.
