[lacnog] Fwd: RFC 7021 on Assessing the Impact of Carrier-Grade NAT on Network Applications

Arturo Servin aservin en lacnic.net
Vie Sep 20 11:11:10 BRT 2013



-------- Original Message --------
Subject: RFC 7021 on Assessing the Impact of Carrier-Grade NAT on
Network Applications
Date: Thu, 19 Sep 2013 16:41:19 -0700 (PDT)
From: rfc-editor en rfc-editor.org
Reply-To: ietf en ietf.org
To: ietf-announce en ietf.org, rfc-dist en rfc-editor.org
CC: drafts-update-ref en iana.org, rfc-editor en rfc-editor.org

A new Request for Comments is now available in online RFC libraries.

        RFC 7021

        Title:      Assessing the Impact of Carrier-Grade NAT
                    on Network Applications
        Author:     C. Donley, Ed.,
                    L. Howard, V. Kuarsingh,
                    J. Berg, J. Doshi
        Status:     Informational
        Stream:     Independent
        Date:       September 2013
        Mailbox:    c.donley en cablelabs.com,
                    william.howard en twcable.com,
                    victor en jvknet.com,
                    j.berg en cablelabs.com,
                    jineshd en juniper.net
        Pages:      29
        Characters: 66150
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-donley-nat444-impacts-06.txt

        URL:        http://www.rfc-editor.org/rfc/rfc7021.txt

NAT444 is an IPv4 extension technology being considered by Service
Providers as a means to continue offering IPv4 service to customers
while transitioning to IPv6.  This technology adds an extra Carrier-
Grade NAT (CGN) in the Service Provider network, often resulting in
two NATs.  CableLabs, Time Warner Cable, and Rogers Communications
independently tested the impacts of NAT444 on many popular Internet
services using a variety of test scenarios, network topologies, and
vendor equipment.  This document identifies areas where adding a
second layer of NAT disrupts the communication channel for common
Internet applications.  This document was updated to include the
Dual-Stack Lite (DS-Lite) impacts also.

INFORMATIONAL: This memo provides information for the Internet community.
It does not specify an Internet standard of any kind. Distribution of
this memo is unlimited.

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