Mobile Operator Connectivity

Sun Oct 10 17:42:08 UTC 2010

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:dholmes at mwdh2o.com] 
> Sent: Monday, September 27, 2010 9:42 PM
> To: Seth Mattinen; nanog at 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:sethm at rollernet.us]
> Sent: Monday, September 27, 2010 1:14 PM
> To: nanog at 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
> 
> 
> 
> 