Flashing yellow is de rigeur for any ethernet port which is passing data though.
Of course the dSnake is missing the green “link present” LED…
(It still concerned me yesterday when I had pulled out my entire 50m reel under a temporary building, and the first thing I could plug in on stage was the AR2412 into a temporary power socket – blinking yellow wasn’t what I expected to see, it was only my second time using the AR2412 though, and I was hoping I hadn’t managed to damage the cable dragging it under the building*)
* (Had to put the reel by the stage, then unravel it all out to the side of the building then drag it under the building, which was a commando crawl space at that end)