On 10/9/10 5:08 PM, Ryan Finnesey wrote: > I have been working on a similar project and I am finding it very hard > to get the mobile operators to understand why we want as little latency > as possible and they are not very open to people peering with their > "wireless" backbone.
Possibly because the way that they tunnel GTP to the GGSN and the locations of GGSN devices relative to the handsets served preclude as little latency as possible. > I hope this will change with more and more > eyeballs going wireless. LTE provides an opportunity to move the bottleneck. > > -----Original Message----- > From: Holmes,David A [mailto:dhol...@mwdh2o.com] > Sent: Monday, September 27, 2010 9:42 PM > To: Seth Mattinen; nanog@nanog.org > Subject: RE: Mobile Operator Connectivity > > Some large telcos with wireless and wireline operations in the US > maintain 2 separate backbones: one that I call "wired", that corresponds > to traditional wired access where commerce servers are usually located; > and one that I call a "wireless" backbone, where GSM/CDMA wireless > devices are used to aggregate access-layer traffic. Both backbones > consist of national fiber-optic, BGP-based networks. Surprisingly, some > large telcos have a presence of both wireline and wireless backbones in > the same colos, but the 2 backbone networks are interconnected, not in > that colo, but at a single geographic location (with perhaps a single > hot standby interconnection site), located, for example in northern > Virginia. > > So, the worst case is that if the servers and GSM/CDMA devices are > located in Southern California, even though the telco has a wireline and > wireless presence in the local LA colo, GSM/CDMA access-layer traffic > must traverse the continental US to northern Virginia and back to get to > the server. > > -----Original Message----- > From: Seth Mattinen [mailto:se...@rollernet.us] > Sent: Monday, September 27, 2010 1:14 PM > To: nanog@nanog.org > Subject: Re: Mobile Operator Connectivity > > On 9/25/2010 13:37, Leo Woltz wrote: >> I am looking for some guidance from the list. We will soon be > deploying >> wireless payment devices (CDMA/GSM). We are looking at options on > where to >> locate the servers that will run the backend payment gateways; we > would like >> the least amount of latency between the servers and the wireless > networks as >> possible. The wireless networks we will be deploying the devices on > are: >> > >> >> Sprint PCS >> > > For Sprint you can get a circuit to AS1239 and just take customer > routes. Their PCS network is AS10507, but as far as I know the closest > you can get to it is 1239. > > ~Seth > > > >