nanog mailing list archives

Re: Peering and Network Cost


From: Max Tulyev <maxtul () netassist ua>
Date: Fri, 17 Apr 2015 16:05:21 +0300

One more interesting thing.

If you buy IP transit, mostly you are paying by exact bandwidth, per
megabit. If you buy IX peering port, you are paying for port. This means
Tranist ports are overloaded or close to it, while IX ports usually
always have some extra free capacity.

In practice, this mean if your customer download some file using IX way,
speed will be much higher that same file reachable by IP transit.

So more peerings your uplink use - better performance of your network
connection you have ;)

On 04/15/15 23:12, Grzegorz Janoszka wrote:
On 2015-04-15 19:50, Max Tulyev wrote:
transit cost is lowering close to peering cost, so it is doubghtful
economy on small channels. If you don't live in
Amsterdam/Frankfurt/London - add the DWDM cost from you to one of major
IX. That's the magic.

In large scale peering is still efficient. It is efficient on local
traffic which is often huge.

Even in the three cities you mentioned peering on small scale is usually
not cheaper at all or only very little.

Please keep in mind that some companies peer despite it offers no
savings for them and at the end of the day it might be even more
expensive. They do it because of performance and reliability reasons.



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