This issue may happen on NXS-97xx Rev.2 and certain models of Cisco/Netgear switches.
If you experience issues with ETH port (no link, LEDs are off), there are few steps which you can do to make that work.
Please do following on your switch/router port:
- disable autonegotiation
- set 100MBits full duplex speed
Alternatively you can set the same at SMSEagle with command:
ethtool -s eth0 autoneg off speed 100 duplex full