The MPLS WG Archive

["David Allan" <dallan@nortelnetworks.com>]

Title: RE: [PWE3] I-D ACTION:draft-allan-mpls-pid-00.txt

Actually I suspect someone will suggest that 0000 will collide with deployed stuff ;-)

1000 was chosen not to collide with stuff that after writing I found may not be an issue. If we accept that existing PHP may lead to somthing trying to interpret this stuff, then avoiding all assigned IP version numbers is probably the best choice, which leaves 1-3 and 10-14, or 0 and 15 (the explicitly reserved values). IMO I would lean towards 15, which cannot be interpreted as a protocol at all and does not collide with IANA space.

Dave

> -----Original Message-----
> From: Shahram Davari [mailto:Shahram_Davari@pmc-sierra.com]
> Sent: Friday, April 04, 2003 3:28 PM
> To: Shahram Davari; Allan, David [CAR:NS00:EXCH]
> Cc: 'pwe3@ietf.org'; 'mpls@uu.net'
> Subject: RE: [PWE3] I-D ACTION:draft-allan-mpls-pid-00.txt
>
>
> Dave,
>
> Also isn't it better to use '0000' instead of '1000' for the
> first nibble. This way it won't interfere with any implementation.
>
> -Shahram
>
> >-----Original Message-----
> >From: Shahram Davari
> >Sent: Friday, April 04, 2003 3:25 PM
> >To: David Allan (E-mail)
> >Cc: pwe3@ietf.org; mpls@uu.net
> >Subject: RE: [PWE3] I-D ACTION:draft-allan-mpls-pid-00.txt
> >
> >
> >Hi Dave,
> >
> >I have a few questions/comments:
> >
> >1) Last sentence of section 2: It is not clear what the
> >loopback address is. I assume it is not a 127/8 address.
> >
> >2) Could you please explain bullet 2 of section 4 a bit more.
> >
> >3) Section 6: I assume by no PHP you mean when there is only
> >one label to be poped. right?
> >Also it might be possible to get a PPP PID for the extended
> >Payload ID control-word.
> >
> >Yours,
> >Shahram
> >
> >>-----Original Message-----
> >>From: Internet-Drafts@ietf.org [mailto:Internet-Drafts@ietf.org]
> >>Sent: Friday, April 04, 2003 6:44 AM
> >>Cc: mpls@uu.net; pwe3@ietf.org
> >>Subject: [PWE3] I-D ACTION:draft-allan-mpls-pid-00.txt
> >>
> >>
> >>A New Internet-Draft is available from the on-line
> >>Internet-Drafts directories.
> >>
> >>
> >>    Title           : MPLS and IP PW Payload ID
> >>    Author(s)       : D. Allan
> >>    Filename        : draft-allan-mpls-pid-00.txt
> >>    Pages           : 0
> >>    Date            : 2003-4-3
> >>   
> >>This memo defines an MPLS and PW payload ID. It describes
> how an MPLS
> >>payload ID may be used to address a number of issues
> associated with
> >>proprietary ECMP deployments. It describes how when used with PWs
> >>permits OAM and control protocols to be multiplexed with a PW.
> >>
> >>A URL for this Internet-Draft is:
> >>http://www.ietf.org/internet-drafts/draft-allan-mpls-pid-00.txt
> >>
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