Of course, the *real* answer which everyone seems to be overlooking is
that you're terminating PPPoE-over-L2TP per Paul's original mail. The
encap/deencap is the limiting factor, and you're gonna pummel any
known NPE up to and including the NPE-G1 before you hit the link speed
limit with ATM or POS (you're running an ISP; you *will* have traffic
going both ways, and substantial upstream in todays p2p world).
What processor do you have in there?
---Rob
Aaron <[EMAIL PROTECTED]> writes:
> 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 <[EMAIL PROTECTED]> 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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