Subject: Re: [Softwires] Fwd: New Version Notification for draft-tsou-softwire-bfd-ds-lite-04.txt

From: Tina TSOU <[email-masked]>
Date: Mon, 1 Apr 2013 19:00:55 +0000

Dear Gang,
Thank you for your review of the draft.

Here is my thought.
1. BFD for DS-Lite is the detection for tunnelling, which could be applied to DSL-Lite and LW4o6.
2. DS-Lite standard needs to specify not only the AFTR behavior, but also the B4 behavior, including when BF initiate BFD, how to process if the negotiation does not go through, how to deal with failure; if the the performance gets worse, how CPE deals with different services etc. So it is associated with DS-Lite.

Thank you,
Tina

> -----Original Message-----
> From: GangChen [mailto:[email-masked]]
> Sent: 2013年3月26日 18:53
> To: Tina TSOU
> Cc: Softwires@Ietf. Org
> Subject: Re: [Softwires] Fwd: New Version Notification for draft-tsou-
> softwire-bfd-ds-lite-04.txt
> 
> Dear Authors,
> 
> I read the document. Very interested idea to apply BFD.
> It would be good you could discuss some specific needs from Softwires
> technologies to BFD.
> Otherwise, it seems BFD is orthogonal to Softwire solution.
> 
> Many thanks
> 
> Gang
> 
> 2013/2/2, Tina TSOU <[email-masked]>:
> > Dear all,
> > For your comments.
> >
> > Thank you,
> > Tina
> >
> > Begin forwarded message:
> >
> > From: <[email-masked]<mailto:[email-masked]>>
> > Date: February 1, 2013 9:49:04 AM PST
> > To:
> > <[email-masked]<mailto:[email-masked]>>
> > Cc: <[email-masked]<mailto:[email-masked]>>,
> > <[email-masked]<mailto:[email-masked]>>,
> > <[email-masked]<mailto:[email-masked]>>,
> > <[email-masked]<mailto:[email-masked]>>,
> > <[email-masked]<mailto:j.schoenwaelder@jacobs-un
> > iversity.de>>
> > Subject: New Version Notification for
> > draft-tsou-softwire-bfd-ds-lite-04.txt
> >
> >
> > A new version of I-D, draft-tsou-softwire-bfd-ds-lite-04.txt
> > has been successfully submitted by Tina Tsou and posted to the IETF
> > repository.
> >
> > Filename:     draft-tsou-softwire-bfd-ds-lite
> > Revision:     04
> > Title:         DS-Lite Failure Detection and Failover
> > Creation date:     2013-02-01
> > WG ID:         Individual Submission
> > Number of pages: 10
> > URL:
> > http://www.ietf.org/internet-drafts/draft-tsou-softwire-bfd-ds-lite-04
> > .txt
> > Status:
> > http://datatracker.ietf.org/doc/draft-tsou-softwire-bfd-ds-lite
> > Htmlized:
> > http://tools.ietf.org/html/draft-tsou-softwire-bfd-ds-lite-04
> > Diff:
> > http://www.ietf.org/rfcdiff?url2=draft-tsou-softwire-bfd-ds-lite-04
> >
> > Abstract:
> >   In DS-Lite, the tunnel is stateless, not associated with any state
> >   information, and no failure detection and failover mechanism is
> >   available.  This makes it difficult to manage and diagnose if there
> >   is a problem.  This draft analyzes the applicability of some of the
> >   possible solutions.
> >
> >
> >
> >
> > The IETF Secretariat
> >
> >