RE: draft-arkko-ipv6-transition-guidelines WGLC

On Aug 17, 2010, at 1:53 AM, <mohamed.boucadair@orange-ftgroup.com> <mohamed.boucadair@orange-ftgroup.com> wrote:

Dear authors,

The draft currently states the following:

"4.3. IPv6-Only Core Network

   An emerging deployment model uses IPv6 as the dominant protocol at a

   service provider network, and tunnels IPv4 through this network in a

   manner converse to the one described in the previous section. There

   are several motivations for choosing this deployment model:

   o There may not be enough public or private IPv4 addresses to

      support network management functions in an end-to-end fashion,

      without segmenting the network into small parts with overlapping

      address space.

   o IPv4 address sharing among subscribers may involve new address

      translation nodes within the service provider's network. IPv6 can

      be used to reach these nodes. Normal IPv4 routing is insufficient

      for this purpose, as the same addresses would be used in several

      parts of the network.

   o It may be simpler for the service provider to employ a single-

      version network.

   The recommended tool for this model is Dual Stack Lite

   [I-D.ietf-softwire-dual-stack-lite]. Dual Stack Lite provides both

   relief for IPv4 address shortage and makes forward progress on IPv6

   deployment, by moving service provider networks and IPv4 traffic over

   IPv6. Given this IPv6 connectivity, as a side-effect it becomes easy

   to provide IPv6 connectivity all the way to the end users."

DS-Lite as currently defined in I-D.ietf-softwire-dual-stack-lite cannot be used in an IPv6-only SP network unless it is located at the boundaries of that networks (but this may have some issues such as no optimal routing path for intra-domain communications). A detailed solution of the deployment of DS-Lite in IPv6-only domain is defined in http://tools.ietf.org/html/draft-boucadair-dslite-interco-v4v6-04.

Adding a reference to this I-D would be more appropriate.

Cheers,

Med

De : owner-v6ops@ops.ietf.org [mailto:owner-v6ops@ops.ietf.org] De la part de Fred Baker
Envoyé : dimanche 15 août 2010 20:00
À : v6ops@ops.ietf.org
Cc : kurtis@kurtis.pp.se; rbonica@juniper.net
Objet : draft-arkko-ipv6-transition-guidelines WGLC

This is to initiate a two week working group last call of draft-arkko-ipv6-transition-guidelines. Please read it now. If you find nits (spelling errors, minor suggested wording changes, etc), comment to the authors; if you find greater issues, such as disagreeing with a statement or finding additional issues that need to be addressed, please post your comments to the list.

We are looking specifically for comments on the importance of the document as well as its content. If you have read the document and believe it to be of operational utility, that is also an important comment to make.
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