[c-nsp] cisco memory bug / propabilities?

[Frank Bulk]

This is why I tested the replacement line card before I started the maintenance window. =)

Frank

-----Original Message-----
From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Painting, Stuart
Sent: Friday, October 31, 2014 6:05 AM
To: 'cisco-nsp at puck.nether.net'
Subject: Re: [c-nsp] cisco memory bug / propabilities?

We only have a modest number of Cat6500 switches, so these results may
not be statistically significant.

Of the 8 Cat6500 switches we have powered off/on in the past 12 months
(each fitted with multiple "high-risk" cards) one switch suffered a
failure of one card.

Only one failure but it was a doozy: not only did the line card fail, but
so did the replacement line card...



-----Original Message-----
From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Gert Doering
Sent: 31 October 2014 09:47
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] cisco memory bug / propabilities?

Hi,

there's the infamous cisco memory bug "reboot and see your boxes die" - with
the recent IOS software fixes, I have a couple of 6500s that need a reboot
now, and I'm a bit scared - read: do I plan for "I reboot as usual, and
there is a remote chance that hardware will not come back, so ensure 
a longer-than-planned outage is acceptable", or "I really should have a 
full set of spare boards sitting beside the to-be-rebooted box, because 
90% of all boards will die"...?

What are *your* experiences with dieing cisco memory, in particular on 6500s?

I've heard horror storries from ASA owners, but not very much from 6500 
owners yet...  (and that's not because "nobody but me is using them 
anymore").

The advisory

  http://www.cisco.com/web/about/doing_business/memory.html#~impacted

is not very specific...

gert
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de

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