Rear lights on C7000v2

OK so I can find all the info I could ever ask for in regards to the front display of this modem; what the different colors of the front lights mean, what it indicates if they’re flashing or solid, what the symbols themselves stand for, etc. My question is what the heck do the green and amber LEDs on the BACK of the modem, where the ethernet cables are plugged in, mean? Some of mine are solid green. Some of them are sporadically blinking amber, etc., but everything seems to work and is operating at the speeds I’m expecting. Please see attached pic in reference to specifically which lights I’m talking about.