[c-nsp] ASIC to switch port mapping

[Daniel Holme]

FYI The 48 port 3560E switches have 3x ASICs so you'll get the same
buffer limitations across each set of 24 ports.

Regards,
--Dan

On Fri, Sep 10, 2010 at 7:27 PM, Vincent Aniello
<vincent.aniello at pipelinefinancial.com> wrote:
> So it looks like a WS-C3560E-24TD has two ASICs:
>
>
>
> switch#show platform port-asic version
>
>
>
> Port-Asic Version Info:
>
> ========================
>
> ASIC-0: Version:4 DeviceType:0x30A
>
> ASIC-1: Version:4 DeviceType:0x30A
>
>
>
> Also, the "show platform pm if-numbers" command does return the ports
> assigned with each ASIC, I overlooked the '0' in the port column because
> I expected to see more than two ASICs.
>
>
>
> --Vincent
>
>
>
>
>
> From: illcritikz at gmail.com [mailto:illcritikz at gmail.com] On Behalf Of
> Ben Steele
> Sent: Friday, September 10, 2010 2:06 PM
> To: Vincent Aniello
> Cc: Nick Hilliard; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] ASIC to switch port mapping
>
>
>
> sh platform port-asic should list your ASIC's
>
>
>
> port groupings are almost always in groups, so you can work out what
> ports belong to a common ASIC by dividing the amount of ports you have
> by the amount of ASIC's listed, keep in mind you will probably have a
> dedicated ASIC for the 2 10G uplinks.
>
>
>
>
>
>
>
> On Fri, Sep 10, 2010 at 6:50 PM, Vincent Aniello
> <vincent.aniello at pipelinefinancial.com> wrote:
>
> This is on a 3650E switch.
>
> Thanks.
>
> --Vincent
>
>
> -----Original Message-----
> From: Nick Hilliard [mailto:nick at foobar.org]
> Sent: Friday, September 10, 2010 1:31 PM
> To: Vincent Aniello
> Cc: Heath Jones; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] ASIC to switch port mapping
>
> On 10/09/2010 18:18, Vincent Aniello wrote:
>> I am trying to solve a output drops on switch ports on which bandwidth
>> utilization does not seem to exceed the port speed. Seems like the
>> drops are due to the buffers filling up and dropping frames. I am
> under
>> the impression that each ASIC has their own buffer and if the buffer
>> fills on a particular ASIC all ports that share that ASIC will also
> drop
>> frames. If I know the switch interfaces associated with each ASIC I
> can
>> redistribute the connections on the switch to better balance the load.
>
> What sort of card are you using?
>
> Nick
>
>
>
>
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