North American Network Operators Group|
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Re: Spanning tree melt down ?
speculating on cause and effect, my first bet would that someone turned off spanning tree on a trunk or trunks immediately prior to the flood. my next bet would be a babbling device - i've seen an unauthorized hub on a flat layer 2 net basically shut the network down. it was after a power hit. when we found the buggar and power cycled it, all was well. i don't think that the researcher was the culprit. more likely the victim. thoughts? ----- Original Message ----- From: "Scott Granados" <email@example.com> To: "Huff, Mark" <firstname.lastname@example.org>; "Nanog (E-mail)" <email@example.com> Sent: Wednesday, November 27, 2002 12:54 PM Subject: Re: Spanning tree melt down ? > > Oh wow I worked for a company who integrated some fairly large network based > imaging systems in there and things were broken then too. > > Their techs kept cutting fibers and disconnecting nodes and it took days for > them to figure out why. > > ----- Original Message ----- > From: "Huff, Mark" <firstname.lastname@example.org> > To: "Nanog (E-mail)" <email@example.com> > Sent: Wednesday, November 27, 2002 8:19 AM > Subject: Spanning tree melt down ? > > > > Cisco wins... > > > > As a result of the crash, Beth Israel Deaconess plans to spend $3 million > to > > replace its entire network - creating an entire parallel set of wires and > > switches, double the capacity the medical center thought it needed. > > > > > > > > > > > > >