Aren't availability, guaranteed service and remote hands an incentive to do peering inside a third party colocation?
I see very large numbers for xconnects for instance in Equnix [ https://blog.equinix.com/2013/08/equinix-cross-connects-hit-110000/] and it made me believe buying xconnect is still a normal practice. Best Regards Reza Motamedi (R.M) Graduate Research Fellow Oregon Network Research Group Computer and Information Science University of Oregon On Wed, Dec 23, 2015 at 2:12 PM, Baldur Norddahl <baldur.nordd...@gmail.com> wrote: > > > On 23 December 2015 at 20:05, Reza Motamedi <motam...@cs.uoregon.edu> > wrote: > >> In Private peering however the AS pays the colo provider for the xconnect >> per ASes that it wants to peer with. The cost of transit would be >> additional if the peering is in fact a transit and not settlement free. >> > > You are still assuming there is a colo. But perhaps the most common case > is a multihomed company buying transit from two independent service > providers. The customer is at his office and the two service providers will > have their end somewhere in the city, perhaps even terminating their end of > the circuit in a street cabinet. The customer is multihomed and therefore > has his own AS. This is a peering situation with three AS numbers that fits > your description, it is private peering and there is no xconnect. Instead > there is usually a leased line cost, but this cost is often hidden from the > customer. Also the ISP might own the line (physical fiber) and the cost is > not a simple $/month. > > But also two ISPs might peer in this way. Residual internet providers have > a ton of points of presences, so why choose a place where there is a > xconnect fee? We can peer anywhere in the city, including at a random > street cabinet. Often the cost of renting a dark fiber somewhere is lower > than a xconnect fee (a sign that datacenter owners are too greedy). > > If one party is a content provider I give you that the peering point is > usually at a datacenter somewhere. But still, if the content provider is > big enough to run their own datacenter, we are back at the leased line case > again. Some content providers, even if small, prefer to just run their own > datacenter in the basement of their offices. > > Regards, > > Baldur > >