Anyone remember the term 'chip creep'? Came across that back in a Novell Service and Support exam a LONG time ago. Still relevant!
Chuck -----Original Message----- From: cisco-nsp [mailto:[email protected]] On Behalf Of Mack McBride Sent: Friday, July 05, 2013 12:22 PM To: Phil Mayers; Robert Williams Cc: [email protected] Subject: Re: [c-nsp] Sup-720 fabric failures This is actually a common fault in electronics (not just routers). As the device cools, improper solder connections separate causing issues (ie. Something isn't making good contact). As the device heats up the components expand and restore contact and everything works fine. This is in fact a fault. Under normal conditions the device should be able to function as long as you don't get condensation and you don't freeze the capacitors (which freeze somewhere below 0C). Obviously fluctuating the temperature will make the situation worse as the poor connection eventually becomes no connect from shrinking and expanding. LR Mack McBride Network Architect -----Original Message----- From: cisco-nsp [mailto:[email protected]] On Behalf Of Phil Mayers Sent: Friday, July 05, 2013 5:25 AM To: Robert Williams Cc: [email protected] Subject: Re: [c-nsp] Sup-720 fabric failures On 05/07/13 12:22, Robert Williams wrote: > Slightly warmer than that, a cosy 15 degrees Celsius I'm afraid... That's really weird. We have operated sup720 in places that cool. > Any ideas? None spring to mind, beyond a really odd hardware fault. _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
