[c-nsp] OC3 Throughput

Aaron dudepron at gmail.com
Tue Nov 20 16:02:58 EST 2007


Of course you didn't specify ATM originally either. POS would probably
give you a few more since you don't have the ATM overhead.

On Nov 17, 2007 3:09 PM, Garry <gkg at gmx.de> wrote:
> Paul Stewart wrote:
> > A few people hit me offline stating that it's not nice to hold back the
> > answers and that they were curious... right you are - sorry about that...;)
> >
> > The general answer has been 110-120Mb/s considering ATM overheads etc. on a
> > 5 minute graph average - beyond that you are really pushing your luck.  We
> > have one such circuit today that is hitting 110 regularily and sometimes
> > hits 120 for short peaks - my concerns are now staring at me on a graph....
>
> In general (at least speaking from an ISP's point of view) when
> utilizing a link beyond 90% peak or beyond 75% average, it's time to
> upgrade ... otherwise it's just a question of time when the link
> capacity is causing quality degradation for the users ... (unless the
> peaks are caused by batch-only traffic).
>
> Take the usage graph to your boss and tell him you need another link or
> an OC12 upgrade ;)
>
> -garry
>
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