What you really need to know the dirty little secrets of the various implementations of the stacks and the short cuts (or blatant ignoring of standards). My Bo

What you really need to know the dirty little secrets of the various implementations of the stacks and the short cuts (or blatant ignoring of standards). My Boss at BT could do this from a x.400 packet trace and point to the offending dword and say that is XXX's POS stack. There is also the story of a guy (at BT Labs) who took the CCIE and only scored 98% he then wrote a personal letter to John Chambers explaining why he was right and Cisco was not. ... Turns out he was one of the 3 inventors of Ethernet