Peering - Benefits?
Patrick W. Gilmore
patrick at ianai.net
Thu Oct 30 23:41:04 CDT 2008
On Oct 30, 2008, at 10:19 PM, vijay gill wrote:
> This is probably going to be a somewhat unpopular opinion, mostly
> because people cannot figure out their COGS. If you can get transit
> for cheaper than your COGS, you are better off buying transit and not
> peering. There are some small arguments to be made for latency and
> 'cheap/free' peering if you are already buying transit at an exchange
> and your port/xconn fee is cheaper than your capital/opex for the
> amount of traffic you peer off.
One of us is confused.
Transit is _part_ of COGS, at least for most of the group reading this
list. Finding transit "cheaper than your COGS" just means cheaper
than you get it now. And that in no way way means you should dump
peering. What if peering is cheaper than transit?
The part where we do agree is that most people cannot figure out their
COGS. And you might even convince me that "you don't know what
peering really costs you" is a valid reason to shy away from it. But
that is not what you said.
Assuming you can figure your actual costs, and peering is at least
break even with transit, I would suggest you peer. If peering is not
cheaper, then I would suggest not doing it. (Obviously a
generalization - there are corner cases which go against the rule.)
And if you cannot figure your actual costs, it is much safer to stick
with the more simple solution - i.e. transit.
> To be completely realistic, at current transit pricing, you are almost
> always better off just buying transit from two upstreams and calling
> it done, especially if you are posting to nanog asking about peering.
That is a pretty broad statement.
Not that I think you are wrong.... I honestly am not sure at this
point. (Mostly 'cause I'm not sure who would e-mail NANOG asking
about it. :-)
> On Wed, Oct 29, 2008 at 12:17 PM, Paul Stewart
> <pstewart at nexicomgroup.net> wrote:
>> Hi there...
>> I'm in a meeting next week to discuss settlement-free peering
>> always an interesting time. A push is on (by myself) to get into
>> physical locations and participate on the peering exchanges.
>> Besides costs, what other factors are benefits to peering?
>> I can think of some but looking to develop a concrete list of
>> reasons etc. such as:
>> -control over routing between networks
>> -security aspect (being able to filter/verify routes to some degree)
>> Just looking for other positive ideas etc...;)
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