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RE: Open issues list? [Re: New (-02) version of IPv6 CPE Router draft is available for review]
- To: v6ops@ops.ietf.org, "Hemant Singh \(shemant\)" <shemant@cisco.com>, "Wes Beebee \(wbeebee\)" <wbeebee@cisco.com>
- Subject: RE: Open issues list? [Re: New (-02) version of IPv6 CPE Router draft is available for review]
- From: Francois-Xavier Le Bail <fx.lebail@yahoo.com>
- Date: Wed, 30 Jul 2008 05:28:05 -0700 (PDT)
- Cc: Brian E Carpenter <brian.e.carpenter@gmail.com>
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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