context
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... unique prefix to each primary PDP context when IPv6 stateless address
autoconfiguration is used, and allowing the terminals to use multiple
...
... GGSN, over which
the packets are transferred. There are two kinds of PDP Contexts --
primary, and secondary.
...
... instance, an IP address is assigned to each primary PDP Context. In
addition, one or more secondary PDP Contexts ...
... Context. In
addition, one or more secondary PDP Contexts can be added to a
primary PDP Context ...
... Contexts can be added to a
primary PDP Context, sharing the same IP address. These secondary
PDP ...
... same IP address. These secondary
PDP Contexts can have different Quality of Service characteristics
than the primary PDP ...
... links are point-to-
point. Once activated, all PDP contexts have equal status, meaning
that a primary PDP context ...
... contexts have equal status, meaning
that a primary PDP context can be deleted while keeping the link
...
... Context:
PDP Context Activation, Modification, and Deactivation. These
actions are described in the following.
...
... Context and all
secondary PDP contexts associated with it are deactivated, a
link between the UE ...
... corresponds to a fully qualified domain name. At PDP context
activation, the SGSN performs a DNS query ...
... Each connected handset or laptop will create a primary PDP context
for communication on the Internet. A handset may create ...
... create many primary
and/or secondary PDP contexts throughout the life of its connection
with a GGSN ...
... IPv6
address. Later, the GGSN modifies the PDP context entry in the SGSN
to include the whole IPv6 address ...
... address is also used in the GGSN to identify the PDP context
associated with each packet. It is assumed that 3GPP nodes ...
... prefixes to be advertised for
each primary PDP context. This would have several advantages,
including:
...
... WG recommends that the 3GPP treat a primary PDP context,
along with its secondary PDP contexts ...
... that the GGSN view each primary PDP context as a single subnet.
Accordingly, a given global (or site-local ...
... 64 prefixes should be assigned
to each primary PDP context. This will allow sufficient address
space for a 3GPP-attached node ...
...
If an operator assigns a /64 per PDP context, can we be assured that
there is enough address space for millions of mobile devices ...
... 64
prefixes can be assigned. This translates into around 80,000 PDP
Contexts per person on the earth today. Even assuming that a
majority of these IPv6 /64 prefixes ...
... 64 prefixes are allocated to primary PDP
contexts.
For more information regarding policies for IPv6 address ...
... prefix that is
currently assigned to a PDP context. By assigning a prefix to only
one primary PDP ...
... WG should consider publishing an "IPv6 over PDP Contexts"
(or similar) document. This document would be useful for developers
writing drivers for IPv6 stacks ...
... In order to allow for the configuration and use of multiple IPv6
addresses per primary PDP Context having different interface
identifiers, some modifications to the current 3GPP specifications
...
... multiple addresses on the
same primary PDP Context were considered:
1. Assign one or more entire prefixes ...
... b) The assignment may be performed by building "prefix
delegation" functionality into the PDP Context messages or
by using layer 3 mechanisms such as [PREFDEL ...
... certain number of /64 prefixes that can be handed out at PDP context
Activation, through Router Advertisements. Therefore, instead of
...
... prefixes that are assigned to a PDP context. By assigning a given
prefix to only one primary PDP ...
... associate a prefix list with each PDP context, as needed.
Note that the recommended solution does not imply or assume that the
...
... MT is
connected to a separate primary PDP Context and therefore can use a
/64, which is not shared with other devices. The MT is also expected
...