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Hi all,
is normal to have this value for a router?

It seems that "I/O Pool allocation", "PCI pool allocation" and "Fast
pool allocation" is near 100%.

It is normal?

12406#sh processes memory
Processor Pool Total: 875570560 Used: 45983336 Free: 829587224
I/O Pool Total: 33554432 Used: 17453024 Free: 16101408
PCI Pool Total: 33554432 Used: 33401680 Free: 152752
Fast Pool Total: 131072 Used: 129808 Free: 1264

Thank you and Best regards

Sergio

"sergio" <> ha scritto nel messaggio
news: oups.com...
> Hi all,
> is normal to have this value for a router?
>
> It seems that "I/O Pool allocation", "PCI pool allocation" and "Fast
> pool allocation" is near 100%.
>
> It is normal?
>
> 12406#sh processes memory
> Processor Pool Total: 875570560 Used: 45983336 Free: 829587224
> I/O Pool Total: 33554432 Used: 17453024 Free: 16101408
> PCI Pool Total: 33554432 Used: 33401680 Free: 152752
> Fast Pool Total: 131072 Used: 129808 Free: 1264
>
> Thank you and Best regards
>
> Sergio

Hi,

I suppose you have a modular router as a c7200 with NPE-300 ( 32MB fixed
I/O )...

Both I/O and PCI memory pools are used in the "switching process". ( very
simplified view indeed )
Fast pool is used for speed critical tasks, and when it is depleted
processor I/O is used instead.

Are you experimenting packet drops and/or interface throttles? Are those
values persistent or present only during "heavy duty bursts"?

Regards,
Gabriele

On 17 Mag, 12:17, "Gabriele Beltrame" <bel...@drvsource.net> wrote:
> "sergio" <sergio.loru...@gmail.com> ha scritto nel messaggionews:1179386995.402114.141680@y80g2000hsf .googlegroups.com...
>
>
>
> > Hi all,
> > is normal to have this value for a router?
>
> > It seems that "I/O Pool allocation", "PCI pool allocation" and "Fast
> > pool allocation" is near 100%.
>
> > It is normal?
>
> > 12406#sh processes memory
> > Processor Pool Total: 875570560 Used: 45983336 Free: 829587224
> > I/O Pool Total: 33554432 Used: 17453024 Free: 16101408
> > PCI Pool Total: 33554432 Used: 33401680 Free: 152752
> > Fast Pool Total: 131072 Used: 129808 Free: 1264
>
> > Thank you and Best regards
>
> > Sergio
>
> Hi,
>
> I suppose you have a modular router as a c7200 with NPE-300 ( 32MB fixed
> I/O )...
>
> Both I/O and PCI memory pools are used in the "switching process". ( very
> simplified view indeed )
> Fast pool is used for speed critical tasks, and when it is depleted
> processor I/O is used instead.
>
> Are you experimenting packet drops and/or interface throttles? Are those
> values persistent or present only during "heavy duty bursts"?
>
> Regards,
> Gabriele


Hi Gabriele,

Thank you for your reply.

I'm using a Cisco 12406, i don't have the possibility to run other
show commands.

The Router manage very low traffic, near to zero traffic.

So, i don't if these value can be a normal value.

BR

Sergio

"sergio" <> ha scritto nel messaggio
news: oups.com...
>
> Hi Gabriele,
>
> Thank you for your reply.
>
> I'm using a Cisco 12406, i don't have the possibility to run other
> show commands.
>
> The Router manage very low traffic, near to zero traffic.
>
> So, i don't if these value can be a normal value.
>
> BR
>
> Sergio
>

Hi,

Unfortunately I've never worked on a 12000, so I can't tell you if that
values are normal for the RP; I know its architecture a bit.
All "data" traffic is managed via dCEF by the Line Cards themself, exchanged
by them without interrupting and using the RP CPU and memory.
Control traffic is punted to the RP, and consumes memory and I/O. ( so
unless you are under DoS ( use CoPP to mitigate ) I do not think I/O memory
should be that low ( this is a personal statement, possibly not correct ).
Interfaces like ethernet on RP should not be used for "data" traffic; latest
IOS drop this kind of traffic between Line cards and RP interfaces.


Regards,
Gabriele