Spanning tree melt down ?
jabley at isc.org
Wed Nov 27 15:53:24 UTC 2002
On Wednesday, Nov 27, 2002, at 10:25 Canada/Eastern, Stephen J. Wilcox
> Hmm, well until the comment about STP it sounded like the guy did
> stupid on a program/database on a mainframe..
> I cant see how STP could do this or require that level of DR. Perhaps
> its just
> the scapegoat for the Doc's mistake which he didnt want to admit!
If it's anything like any other layer-2 IT network meltdown I've seen,
it'll be some combination of:
+ no documentation on what the network looks like, apart from a large
yellow autocad diagram which was stapled to the wall in the basement
wiring closet in 1988
+ a scarcity of diagnostic tools, and no knowledge of how to use the
ones that do exist
+ complete ignorance of what traffic flows when the network is not
+ a cable management standard that was first broken in 1988 and has
only been used since to pad out RFPs
+ consideration to network design which does not extend beyond the
reassuring knowledge that the sales guy who sold you the hardware
is a good guy, and will look after you
+ random unauthorised insertion of hubs and switches into the fabric
by users who got fed up of waiting eight months to get another
ethernet port installed in their lab
+ customers who have been trained by its vendors to believe that
certification is more important than experience
+ customers who believe in the cost benefit of a large distributed
layer-2 network over a large distributed (largely self-documenting)
Just another day at the office.
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