[nsp] AToM (on 7600 w/ SUP720) : summary

[Burns, Keith]

Perhaps (I don't mean to assume) what is meant is that if a card fails, and
you replace it, you need to reboot to make it active.

Not exactly HIGH availability if that reboot causes 5min downtime to pass
traffic again (that means BGP converging etc). You are at 99.999%
availability for the year right there with no more outages.

So perhaps clarification on "reboot" ? Are we talking the classic IOS "box
goes away, box comes back and peers up etc" or in the NSO/SSF operation, is
a "reboot" less intrusive to operations?

Or perhaps my understanding of high availability is wrong?


Keith Burns
Principal Network Architect
ICG Telecommunications
IP Ph: 303-414-5385
Cell:   303-912-3777 

"The dogs may bark, but the caravan rolls on...."


> -----Original Message-----
> From: Tim Stevenson [mailto:tstevens at cisco.com]
> Sent: Thursday, January 08, 2004 9:56 AM
> To: cisco-nsp at puck.nether.net; cisco-nsp at puck.nether.net
> Subject: Re: [nsp] AToM (on 7600 w/ SUP720) : summary
> 
> 
> That is correct - if you install a DFC3A card in a PFC3B-XL 
> system, the line card remains powered down.
> 
> Not sure what you mean, "then how about 'high avaibility 
> solution'". What exactly is the question?
> 
> Tim
> 
> At 01:06 AM 1/8/2004, cisco-nsp-request at puck.nether.net maintained:
> >one more snip
> >
> > * With a PFC3BXL and no DFC3A-equipped switching modules 
> installed at bootup,
> >   any DFC3A-equipped switching module installed after 
> bootup remain powered down.
> > * To use DFC3A-equipped switching modules with a PFC3BXL, 
> the DFC3A-equipped switching
> >   modules must be installed at bootup.
> >
> >And now question. If I correctly understand this too lines
> >I can't insert DFC3A-equipped switching modules to chassis
> >any time and start use. Is it true? and if yes then how about
> >'high avaibility solution'?
> 
> 
> Tim Stevenson, tstevens at cisco.com
> Routing & Switching CCIE #5561
> Technical Marketing Engineer, Catalyst 6500
> Cisco Systems, http://www.cisco.com
> IP Phone: 408-526-6759
> ********************************************************
> The contents of this message may be *Cisco Confidential*
> and are intended for the specified recipients only.
> 
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