Not sure of the details but there certainly were several Frame Relay network
meltdowns. The AT&T Stratacom switch IOS upgrade (oops!@) and the Ascend
(for MCI?). There were extenuating reasons for the initial failures but the
cloud didn't converge. Anyone have a postmortem on these events?

> -----Original Message-----
> From: Chuck Larrieu [mailto:[EMAIL PROTECTED]]
> Sent: Monday, April 30, 2001 3:56 PM
> To: [EMAIL PROTECTED]
> Subject: WAN Congestion - Cloud technology - Theory vs 
> Reality [7:2618]
> 
> 
> dropped/refused entry because of congestion on the cloud. 
> This in turn leads
> to the retransmission of dropped packets/cells, which in turn 
> leads to more
> congestion, in a never ending spiral ( in theory, at least )
> 
> Reality: This gets into sizing of WAN links / CIR's / CBR's
> 
> I am a bit curious. Anyone here have any real world 
> experience with this
> kind of thing happening? I can see how this can happen in theory. In
> reality, carrier cloud congestion is not such that it would 
> likely lead to
> this kind of result, is it?
> 
> So if the above premise is something that can and does happen 
> regularly,
> what does the carrier do - just massive dropping of packets / 
> cells until
> the problem disappears, probably after hours that day?
> 
> Any experience?
> 
> Chuck
> 
> One IOS to forward them all.
> One IOS to find them.
> One IOS to summarize them all
> And in the routing table bind them.
> 
> -JRR Chambers-
> FAQ, list archives, and subscription info: 
> http://www.groupstudy.com/list/cisco.html
> Report misconduct 
> and Nondisclosure violations to [EMAIL PROTECTED]




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