4-port 10GigE SFP+ MDA-a Overview
Label/Part
Description
Pwr / Stat
Power and Status
LED
Lnk/Act
Link and Activity
LED
156
Table 71: 4-port 10GigE SFP+ MDA-a LEDs
LED Display
Green (slow blink): The MDA-a is loading the firmware and running
diagnostics.
Green (solid): The MDA-a has successfully completed loading the
firmware and running diagnostics, and is operationally up and
administratively up.
Amber (solid): The MDA-a is operationally down but administratively
up.
Unlit: The MDA is operationally down and administratively down.
Green (solid): Valid communications link established
Green (blink): Port active and receiving or transmitting data
Amber (fast blink): Loopback
Amber (slow blink): Administratively up, but no optic module installed
Amber (solid): Optics installed, but no link present or LOS
Unlit: Laser disabled or port shut down
7750 SR-a4 and SR-a8 Installation Guide