TS-7970 Ethernet
From embeddedTS Manuals
The TS-7970 includes two 10/100/1000 Ethernet ports. The port with the larger connector uses the FEC MAC from the CPU with a Marvell PHY. The other smaller optional port is a PCIe Intel I210 chipset.
The CPU and I210 both receive unique sequential mac addresses. These are pulled from the Technologic Systems OUI "00:D0:69". Both chipsets support downshifting if some of the twisted pairs are missing connection.
On both Ethernet ports the right LED indicates speed. It is on for gigabit, and off for 10/100. The left LED will blink on activity.
See the #Debian_Networking for configuring the network on the default distribution.