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RE: Open issues list? [Re: New (-02) version of IPv6 CPE Router draft is available for review]



What consideration about MLD snooping [RFC4541] on the LAN bridge ?
Without it, a multicast flow will flood all segments on all ports.
Significant bandwidth can be wasted by flooding.

       +------------------------+
       | Routing CPE w/ bridge  |
       | +------+     +------+  |
 Port1-|-|      |     |      |  |
       | |Bridge|-----|Router|--|----WAN
 Port2-|-|      |  LAN|      |  |
       | +------+     +------+  |
       +------------------------+
(David's reference for a routing CPE with internal MAC bridge)

Francois-Xavier

--- On Tue, 7/29/08, Hemant Singh (shemant) <shemant@cisco.com> wrote:

> From: Hemant Singh (shemant) <shemant@cisco.com>
> Subject: RE: Open issues list? [Re: New (-02) version of IPv6 CPE Router draft is available for review]
> To: "Brian E Carpenter" <brian.e.carpenter@gmail.com>, v6ops@ops.ietf.org
> Cc: "Alain Durand" <alain_durand@cable.comcast.com>
> Date: Tuesday, July 29, 2008, 4:29 AM
> Brian,
> 
> I and Wes can recall only two issues that have not reached
> consensus.  
> 
> The big one was Addressing of the CPE Router WAN interface
> because NTT,
> AT&T, a few folks from the DSL Forum were not in
> complete agreement - I
> and Wes are working this one and this is close to closure. 
> We talked
> with NTT yesterday and David Miles who works in the DSL
> Forum.  We will
> send email on this closure sometime today.
> 
> Next one is use of ULA for the home network on the LAN
> interface(s) of
> the CPE Router.  What we have in mind ULA lasts on the
> device till the
> next reboot (ULA will not be renumbered on the device
> acquiring a GUA)
> upon which the same ULA or a different ULA may be generated
> by the
> device.  We are saying the LAN interface(s) will use ULA
> for the
> lifetime of the CPE Router till the router reboots.  Alain
> is one person
> who would like to renumber the ULA on the LAN interface
> acquiring a GUA.
> I didn't see enough justification from him to change
> the draft in the
> ULA regard.  Remi has also replied to Alain's concerns
> and claimed they
> are non-issues.  
> 
> Thanks.
> 
> Hemant
> 
> -----Original Message-----
> From: owner-v6ops@ops.ietf.org
> [mailto:owner-v6ops@ops.ietf.org] On
> Behalf Of Brian E Carpenter
> Sent: Monday, July 28, 2008 11:34 AM
> To: v6ops@ops.ietf.org
> Cc: Alain Durand
> Subject: Open issues list? [Re: New (-02) version of IPv6
> CPE Router
> draft is available for review]
> 
> There wasn't time in the meeting today for me to ask
> this:
> 
> Where is the open issues list for this draft, so that we
> can identify
> the non-consensus items and drive them to a resolution?
> 
>      Brian