Installation Guide

TABLE 35 Router LED states and actions (continued)
LED label Desired state Meaning Abnormal state Meaning or action
presence of all
power sources.
• If you are using
AC power
supplies, see the
entry for the AC
power supply
LED in this table
for more
information.
Mgmt Act During initialization: steady
blinking.After initialization:
occasional blinking.
The active management
module processor and the
interface module processor
are communicating.
O for an extended period. The interface module may
be in interactive mode.
Check the status of the
module by entering the
show module command at
any level of the CLI.
Link On A link is established with the
remote port.
O This LED will remain o
until you have cabled the
interface module ports.
After cabling the ports, if
this LED is still o, a link is
not established with the
remote port.
Active On or blinking The port is transmitting and
receiving user packets.
O for an extended period. This LED will remain o
until you have cabled the
interface module ports.
After cabling the ports, if
this LED is still o, the port
is not transmitting or
receiving user packets.
Switch Fabric module
Pwr On The module is receiving
power.
O The module is not receiving
power. Check the following:
• Make certain that
the module is
installed properly.
For more
information, refer
to the module
installation
section in this
chapter that
applies to your
router model.
• If you are using
AC power
supplies, refer to
the AC power
supply LED
information in this
table for more
information.
Active On The switch fabric module is
active and ready to switch
user packets.
O for an extended period. The switch fabric module is
not active and user packets
are not being switched from
Verifying proper operation
Extreme Routing MLX Series Hardware Installation Guide
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