Question on peering strategies

Marty Strong marty at cloudflare.com
Mon May 23 08:59:16 UTC 2016


This does exist, often called an elastic fabric, e.g. Megaport

Regards,
Marty Strong
--------------------------------------
CloudFlare - AS13335
Network Engineer
marty at cloudflare.com
+44 7584 906 055
smartflare (Skype)

http://www.peeringdb.com/view.php?asn=13335

> On 22 May 2016, at 07:33, Max Tulyev <maxtul at netassist.ua> wrote:
> 
> Hi All,
> 
> I wonder why a "VLAN exchange" does not exists. Or I do not know any?
> 
> In my understanding it should be a switch, and people connected can
> easily order a private VLAN between each other (or to private group)
> through some kind of web interface.
> 
> That should be a more easy and much less expensive way for private
> interconnects than direct wires.
> 
> On 16.05.16 20:46, Reza Motamedi wrote:
>> Dear Nanogers,
>> 
>> I have a question about common/best network interconnection practices.
>> Assume that two networks (let's refer to them as AS-a and AS-b) are present
>> in a colocation facility say Equinix LA. As many of you know, Equininx runs
>> an IXP in LA as well. So AS-as and AS-b can interconnct
>> 1) using private cross-connect
>> 2) through the public IXP's switching fabric.
>> Is it a common/good practice for the two networks to establish connections
>> both through the IXP and also using a private cross-connect?
>> 
>> I was thinking considering the cost of cross-connects (my understanding is
>> that the colocation provider charges the customers for each cross-connect
>> in addition to the rent of the rack or cage or whatever), it would not be
>> economically reasonable to have both. Although, if the cross-connect is the
>> primary method of interconnection, and the IXP provides a router-server the
>> public-peering over IXP would essentially be free. So it might makes sense
>> to assume that for the private cross-connect, there exists a back-up
>> connection though the IXP. Anyway, I guess some discussion may give more
>> insight about which one is more reasonable to assume and do.
>> 
>> Now my last question is that if the two connections exist (one private
>> cross-connect and another back-up through the IXP), what are the chances
>> that periodically launched traceroutes that pass the inter-AS connection in
>> that colo see both types of connection in a week. I guess what I'm asking
>> is how often back-up routes are taken? Can the networks do load balancing
>> on the two connection and essentially use them as primary routes?
>> 
>> Best Regards
>> Reza Motamedi (R.M)
>> Graduate Research Fellow
>> Oregon Network Research Group
>> Computer and Information Science
>> University of Oregon
>> 
> 



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