RE: 3gpp-analysis-05: miscellaneous non-critical issues

[Soliman Hesham <H.Soliman@flarion.com>]

Comments below.


 > *)
 >     However, the UE may attach to a 3GPP network, in which 
 > the Serving
 >     GPRS Support Node (SGSN), the GGSN and the Home Location Register
 >     (HLR) support IPv4 PDP contexts, but may not support IPv6 PDP
 >     contexts. If the 3GPP network does not support IPv6 PDP contexts,
 >     and an application on the UE needs to communicate with an IPv6(-
 >     only) node, the UE may activate an IPv4 PDP context and 
 > encapsulate
 >     IPv6 packets in IPv4 packets using a tunneling mechanism. 

This
 >     might happen in very early phases of IPv6 deployment. 

=> Please remove this sentence. This is an opinion and does not
apply to the roaming case where the home operator has deployed
IPv6 but the visited operator didn't.

  To 
 > generally
 >     solve this problem (IPv6 not available in the 3GPP network), this
 >     document strongly recommends the 3GPP operators to deploy basic
 >     IPv6 support in their GPRS networks, 

=> This does not apply to the roaming case, so it doesn't solve
the problem stated above.


    which can in most cases be
 >     handled by making software upgrades in the network elements.

=> Please remove this sentence, it's not clear whether this opinion 
(most cases) is based on "most products" or "most deployments".
In any case, many products actually need some HW upgrade depending
on how you define "IPv6 support". There is no need to add this
to a draft.

Hesham