Cisco MDS 9000 Series Configuration Manual page 190

Identifying Module LEDs
LED
System
MGMT 10/100 Ethernet Link LED
MGMT 10/100 Ethernet Activity
LED
This table describes the LEDs for the 16-port and 32-port switching modules, and the 4-port, 12-port, 24-port,
and 48-port Generation 2 switching modules.
Cisco MDS 9000 Family NX-OS Fundamentals Configuration Guide
172
Status
Green
Orange
Red
Green
Off
Green
Off
Managing Modules
Description
All chassis environmental monitors
are reporting OK.
The power supply failed or the
power supply fan failed.
or
Incompatible power supplies are
installed.
or
The redundant clock failed.
The temperature of the supervisor
module exceeded the major
threshold.
Link is up.
No link.
Traffic is flowing through port.
No link or no traffic.
OL-29291-02