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Cisco UCS C420 Server Installation and Service Guide
OL-27640-01
Chapter3 Maintainin g the Server
Status LEDs and Buttons
1-Gb Ethernet link status •Off—No link is present.
•Green—Link is active.
•Green, blinking—Traffic is present on the active link.
Identification •Off—The identification LED is not in use.
•Blue—The identification LED is activated.
Table3-2 Rear-Panel LED States (continued)
LED Name State