[c-nsp] 7507 crashes

[Rodney Dunn]

On Fri, Jul 13, 2007 at 10:26:03AM -0400, jp wrote:
> We have a 7507/rsp4/vip2-50 with fast ethernet and ATM t3 card doing ATM 
> over t3 for DSL termination.

You have probably seen my emails already about a 75xx doing DSL termination.
:)


Before we go down the below path can you post a crashinfo from the
RSP or VIP so we can look at it?

 Whenever the power flickers a tiny bit (not 
> enough to activate the UPS), and sometimes the UPS switchover itself, 
> the 7507 will either crash the VIP card or reboot. I have a portmaster 
> hooked to the RSP console port so I can remotely see what happens 
> anytime. The 7507 has dual AC power supplies. A nice UPS would be solve 
> it, but we need monster run time that normal UPS's don't provide, and an 
> autostart generator is not suitable for this site.
> 
> We have the tripplite APS power backup units connected to big AGM deep 
> cycle batteries. It does provide good backup time and power, but the 
> switchover between utility and battery is not 100% transparent. All our 
> other gear at the site must have big enough capacitors in the power 
> supply that it does not seem to matter.
> 
> Would DC power supplies be more apt to smoothly power the cisco? I've 
> got an old lorain 25amp rectifier that seems like it should power it and 
> some batteries fine. It had powered an old tadiran PBX that was bigger 
> than a 4-draw filing cabinet.
> 
> Is this a good way to go, or should I be chasing down some other path?
> 
> -- 
> /*
> Jason Philbrook   |   Midcoast Internet Solutions - Wireless and DSL
>     KB1IOJ        |   Broadband Internet Access, Dialup, and Hosting 
>  http://f64.nu/   |   for Midcoast Maine    http://www.midcoast.com/
> */
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