Another LTE network turns up as IPv4-only

Thu Oct 11 08:55:11 UTC 2012

> Why do you believe that address changes in handover? It's an integral part
> of 3GPP standard that your existing bearer is used for handover, so your
> address shouldn't change. If it changes then it means the handover didn't
> work as designed, probably due to some radio related problem. If the address
> changed, then it means the bearer was torn down and a new bearer was
> initiated. This is definitely not expected behaviour. We have plenty of
> customers with bearers that are up for tens of days in a row.

For that to be true wouldnt support for IPv6 need to be in all
generations of networks. With that standard in place there can not be
new protocols without retrofitting. For a user to switch from 6 to 4
would require and address change however that address change would be
reliant on DNS which would be out of the scope of network grade
support.

On Thu, Oct 11, 2012 at 2:41 AM, Mikael Abrahamsson <swmike at swm.pp.se> wrote:
> On Thu, 11 Oct 2012, Matthew Kaufman wrote:
>
>> If your SSH sessions could survive a change in address assignment (which
>> often happens in a handover), they could survive a change in address family
>> assignment as well.
>
>
> Why would there be an address change in a handover? That is definitely not
> expected behaviour.
>
>> But the stream would almost certainly be coming to a newly assigned IP
>> address?
>
>
> Why do you believe that address changes in handover? It's an integral part
> of 3GPP standard that your existing bearer is used for handover, so your
> address shouldn't change. If it changes then it means the handover didn't
> work as designed, probably due to some radio related problem. If the address
> changed, then it means the bearer was torn down and a new bearer was
> initiated. This is definitely not expected behaviour. We have plenty of
> customers with bearers that are up for tens of days in a row.
>
>
>> The *only* inconsistency would be when you're accessing the IPv6-only part
>> of the Internet, of which there's currently none that consumers care about.
>
>
> If a user is accessing a stream from an IPv6 enabled CDN that stream
> shouldn't be reset just because a handover happened.
>
>
> --
> Mikael Abrahamsson    email: swmike at swm.pp.se
>

-- 
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Bryan Tong
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