Technical Summary
This document specifies a framework to
integrate a Network Address Translation layer into an
operator's network to function as a Carrier Grade NAT (also
known as CGN or Large Scale NAT). The CGN infrastructure
will often form a NAT444 environment as the subscriber home
network will likely also maintain a subscriber side NAT
function. The model included in this document utilizes
BGP/MPLS IP VPNs which allow for virtual routing separation
helping ease the CGNs impact on the network. This document
does not intend to defend the merits of CGN.
Working Group Summary
While there was clear support for
the document within the opsawg, there was little discussion
and no comments during working group last call. However, the
authors were quite proactive about getting feedback from
operators outside the working group context, and having
that feedback posted to the working group mailing list, so
we feel that the document received satisfactory expert
review prior to and during last call. (This was discussed
with the OPS ADs after closing working group last call).
Document Quality
This is a well-written document that
clearly lays out the background, requirements, and
deployment scenarios using straightforward, unambiguous
language. It received expert review from cable and telecomm
operators during its development, and the authors are
employed by Rogers Communication, a large Canadian telecomm
firm.
Personnel
Melinda Shore is the document shepherd.
Benoit Claise is the responsible area director