Re: [v6ops] I-D Action: draft-ietf-v6ops-ipv6-roaming-analysis-02.txt

[Tore Anderson <[e-mail]>]

* GangChen

> In your case, I guess traffic is home routed. When a Telenor customer
> roams Tele2/NwN, All PDP/PDN request and traffic will back to Telenor
> network. Therefore, it works.

Yep, exactly. I am assigned addresses from Telenor's prefixes when I
roam (both for IPv4 and IPv6 APNs). Same thing for Tele2/NwN.

> However, it increases the international data roaming fees to 
> customers, since Telenor has to pay GRX/IPX carrier for the 
> international traffic transit. In order to reduce the cost, local 
> breakout is an optimized approach.

I don't think any of the Norwegian providers allow/support their
subscribers to do local breakout. I assume this is a service the visited
network cannot offer to the roamer without the home network's blessing?

[ If the visited network can do this without the home network's
blessing, that would have made for a extremely nice product for
travelers. Imagine if I could just have entered a new APN name
"internet.gangchen" when I visit your country and roam in your PLMN,
punch in my credit card details in a captive portal and from then on
been able to use mobile internet at reasonable local rates... No more
bothering with getting pre-paid data SIMs from local providers and such
anymore..! ]

> It will save the charge for
> GRX/IPX transit and improve data service performance.

I think Telenor (and all the other providers around here for that
matter) are happily enjoying near-criminal profit margins on those
expenses, so I'm kind of doubting I'll see local breakout being offered
or encouraged anytime soon...but I guess time will tell.

Tore