AW: I-D Action:draft-ietf-v6ops-ipv6-cpe-router-03.txt

[<Olaf.Bonness@telekom.de>]

sounds good to me.

Olaf 

> -----Ursprüngliche Nachricht-----
> Von: owner-v6ops@ops.ietf.org 
> [mailto:owner-v6ops@ops.ietf.org] Im Auftrag von Ole Troan
> Gesendet: Freitag, 8. Januar 2010 12:14
> An: Mark Smith
> Cc: Fred Baker; IPv6 Operations
> Betreff: Re: I-D Action:draft-ietf-v6ops-ipv6-cpe-router-03.txt
> 
> Mark,
> 
> apologies for the delay. catching up after Christmas.
> 
> > "Section 4.1 WAN side configuration
> > 
> > WLL-1:  The IPv6 CE router MUST support IPv6 over Ethernet 
> [RFC2464]."
> > 
> > 
> > I don't see how that can be a MUST when the WAN interface may not
> > support Ethernet framing e.g. a 3G/HSPDA or Wimax IPv6 CS 
> WAN interface.
> > Similarly for the PPPoE requirement (and arguably for the PPP
> > requirement) - 
> > 
> > "WLL-2:  The IPv6 CE router MUST support IPv6 over PPP [RFC5072] and
> >           PPPoE [RFC2516].  In a dual-stack environment 
> with IPCP and
> >           IPV6CP running over one PPP logical channel, the 
> NCPs MUST be
> >           treated as independent of each other and start 
> and terminate
> >           independently."
> > 
> > I think it would be better to try to avoid making anything 
> relating to
> > IPv6-over-foo support MUSTs, keeping the scope to IPv6 CPE
> > requirements. If IPv6-over-foo functions are in scope for the draft,
> > then I'd suggest making treating them as separate sections, saying
> > something like, "If the WAN interface supports Ethernet 
> encapsulation,
> > then it MUST support IPv6 over Ethernet [RFC2464] and PPP [RFC5072]
> > and PPPoE [RFC2516].", "If the WAN interface supports ATM 
> encapsulation,
> > then it MUST support PPPoA [RFCXXXX]" etc.
> > 
> > A future CPE's lack of compliance with this draft just because it
> > doesn't support Ethernet framing on it's WAN interface 
> would be a shame.
> 
> would you be happier with the following text?
> 
>    WLL-1:  If the WAN interface supports Ethernet encapsulation, then
>            the IPv6 CE router MUST support IPv6 over Ethernet 
> [RFC2464].
> 
>    WLL-2:  If the WAN interface supports PPP encapsulation:
> 
>            (a)  The IPv6 CE router MUST support IPv6 over PPP 
> [RFC5072]
>                 and PPPoE [RFC2516].
> 
>            (b)  In a dual-stack environment with IPCP and 
> IPV6CP running
>                 over one PPP logical channel, the NCPs MUST be treated
>                 as independent of each other and start and terminate
>                 independently.
> 
> Best regards,
> Ole
> 
> 
>