--- On Thu, 7/5/12, William Herrin <bill@herrin.us> wrote:
From: William Herrin <bill@herrin.us> Subject: Re: job screening question To: "Jon Lewis" <jlewis@lewis.org> Cc: "nanog@nanog.org" <nanog@nanog.org> Date: Thursday, July 5, 2012, 6:43 PM On Thu, Jul 5, 2012 at 9:28 PM, Jon Lewis <jlewis@lewis.org> wrote:
You've never (much less recently) seen a customer misconfigure their end of an ethernet handoff such that you end up with duplex mismatch? Granted, in that case, distance is irrelevant...but it is half half-duplex ethernet :)
If I was asking an ethernet question, I'd rather ask:
1. How do you make a crossover ethernet cable to connect two switches? (cross the green and orange pairs)
2. What happens if you plug that cable into a pair of gigabit ethernet switches? (mdix malfunctions, ports negotiate to 100 full, on some poorly implemented switches the mix of straight and crossed wires eventually damage the ports so they can no longer do gige)
Regards, Bill Herrin
Or for that matter, in the absence of auto-MDI/MDIX: 1) when is a straight-through cable *required*? 2) when is a cross-over cable *required*? How about another HR-Question: what do 0.0.0.0/1 and 128.0.0.0.0/1 as static-routes accomplish? ./Randy