[c-nsp] Quick question about redundant connections.

[Aamer Akhter (aakhter)]

Drew,

If you'd run into the LC memory CEF diable thing, there should have been a syslog message for that.



-- 
Aamer Akhter / aa at cisco.com
Ent & Commercial Systems, cisco Systems

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] On Behalf Of Drew Weaver
> Sent: Monday, August 13, 2007 9:26 AM
> To: 'Matt Addison'; mtinka at globaltransit.net; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] Quick question about redundant connections.
> 
> OK,
> 
> So let us assume it is an issue with FIB, is there any way to detect
> that this problem is imminent? Is there a way to track LC RAM
> utilization via SNMP or another way?
> 
> Maybe that would be a good first step.
> 
> -Drew
> 
> 
> 
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] On Behalf Of Matt Addison
> Sent: Friday, August 10, 2007 12:20 PM
> To: mtinka at globaltransit.net; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] Quick question about redundant connections.
> 
> The "stops routing" sounds like FIB issues causing CEF to turn off on
> the linecards. How much memory do you have on the linecards? (  "show
> diags | inc (SLOT|MEM-|Engine)"  ). If you have less than 256M
> processor
> memory on any linecard you may want to look into taking it up to 256M.
> 
> To check if this is indeed happening, the next time it happens try
> executing a "execute-on slot <slot> show cef state", if CEF is
> disabled,
> the LC may have run out of memory.
> 
> ~Matt
> 
> 
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Mark Tinka
> Sent: Friday, August 10, 2007 11:45 AM
> To: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] Quick question about redundant connections.
> 
> On Friday 10 August 2007 22:47, Drew Weaver wrote:
> 
> > Is there a particular scheme for downstream switches to verify that
> an
> 
> > upstream router is actually functioning "properly" on a periodic
> > basis?
> 
> Sounds like a probable candidate for BFD; but doesn't quite explain why
> your box "stops routing".
> 
> BFD:
> 
> http://cisco.com/en/US/products/ps6017/products_feature_guide09186a0080
> 3
> fbe87.html
> 
> Mark.
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/