4-6 LED Overview
3916 Service Delivery Switch Hardware Installation and Start-up Manual
009-3226-001 Standard Revision E
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2013-2015 Ciena
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Corporation July 2015
Table 4-3
100/1000 Mbps Port LEDs
LED Indication Description
LNK / ACT
(Left LED)
Off The port is not operational.
Green Indicates a valid network connection.
Blinking Green The port is currently receiving or transmitting
Ethernet packets.
SPD
(Right LED)
Off Port speed is 100 Mbps.
Yellow Port speed is 1000 Mbps.