This does exist, often called an elastic fabric, e.g. Megaport Regards, Marty Strong -------------------------------------- CloudFlare - AS13335 Network Engineer [email protected] +44 7584 906 055 smartflare (Skype)
http://www.peeringdb.com/view.php?asn=13335 > On 22 May 2016, at 07:33, Max Tulyev <[email protected]> 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 >> >
