[c-nsp] Cisco 7206VXR with NPE-G1

Matthew Huff mhuff at ox.com
Tue Jul 7 17:20:09 EDT 2015


Basically, as I understand it, you can get input/output drops with a busy CPU on the 7200 not just with interface buffer overruns but generic queue buffers. The default values were set when T1s were the standard. The  article shows how to see which buffers are being overrun and how to adjust them.




> On Jul 7, 2015, at 4:27 PM, Gert Doering <gert at greenie.muc.de> wrote:
> 
> Hi,
> 
> On Tue, Jul 07, 2015 at 07:16:10PM +0000, Matthew Huff wrote:
>> I would strongly recommend picking up a refurb NPE-G2. They should be cheap and available. We are running 15.2(4)S7 on ours with BGP/EIGRP. Very stable. You might also want to bump up your buffers on the 72xx. 
>> 
>> http://www.cisco.com/c/en/us/support/docs/routers/10000-series-routers/15091-buffertuning.html
> 
> Never understood buffer tuning on 7200s, tbh.  This feels like a relict
> from 7500 days, which had a totally different architecture...
> 
> gert
> -- 
> USENET is *not* the non-clickable part of WWW!
>                                                           //www.muc.de/~gert/
> Gert Doering - Munich, Germany                             gert at greenie.muc.de
> fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de



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