Technical Summary
For extending the lifetime of a mobility session, the Proxy Mobile
IPv6 specification requires the mobile access gateway to send a Proxy
Binding Update message to the local mobility agent on a per-session
basis. In the absence of signaling semantics for performing
operations with group specific scope, it results in significant
amount of signaling traffic on a periodic basis between a given
mobile access gateway and a local mobility anchor. This document
defines an optimization to the binding update and revocation
operations in Proxy Mobile IPv6 for performing operations with group
specific scope using of a group identifier.
Working Group Summary
There is WG consensus regarding this proposal. The I-D has been
presented and discussed at several WG meetings. It has also been
sufficiently reviewed and the document quality improved over
multiple revisions.
Document Quality
There are no known implementations of this protocol at the present
time. WG members who helped with the reviews have been acknowledged
in the I-D.
The document quality is good and can serve as the basis for an
implementation. Clear guidelines for processing by the Mobile
Access Gateway and the Local Mobility Agent have been specified.
Personnel
The responsible Area Director is Jari Arkko. The document shepherd is
Basavaraj Patil.
RFC Editor Note
In the IANA considerations Section, make the following change:
OLD:
o Action-4: The Sub-type field of the Mobile Node Group Identifier
option introduces a new number space. This number space needs to
be managed by IANA, under the Registry, Mobile Node Group
Identifier Type Registry. This specification reserves the sub-
type value of (1) (Bulk Binding Update Group). Approval of new
sub-type values are to be made through IANA Expert Review.
NEW:
o Action-4: The Sub-type field of the Mobile Node Group Identifier
option introduces a new number space. This number space needs to
be managed by IANA, under the Registry, Mobile Node Group
Identifier Type Registry. This specification reserves the sub-
type value of (1) (Bulk Binding Update Group). Approval of new
sub-type values are to be made through IANA Expert Review.
The value range of this field is 0 through 255, but the values 0 and
255 are marked as reserved. The remaining values 2-254 are available
for allocation.