Re: [v6ops] draft-ietf-6man-grand : saving lookups

"Pascal Thubert (pthubert)" <pthubert@cisco.com> Sun, 09 August 2020 18:56 UTC

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From: "Pascal Thubert (pthubert)" <pthubert@cisco.com>
To: Ted Lemon <mellon@fugue.com>
CC: Philip Homburg <pch-v6ops-9@u-1.phicoh.com>, "v6ops@ietf.org" <v6ops@ietf.org>, 6man <ipv6@ietf.org>
Thread-Topic: [v6ops] draft-ietf-6man-grand : saving lookups
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Date: Sun, 9 Aug 2020 18:56:48 +0000
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Subject: Re: [v6ops] draft-ietf-6man-grand : saving lookups
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We have some Ted;

In large meetings we measured way above 100 ND multicast messages per second on the wire, for 90 minutes in a row.

This was on the wire because we use proprietary tech to dampen the wireless side, things like ND proxy but based on snooping for the lack of a better information.

I asked for the figures at the last 2 in person IETF meetings but never got them. First time I asked too late, there needs to be due process to guarantee anonymity. Not sure if they were captured in Singapore and if so where they are.

Take care,

Pascal

> Le 9 août 2020 à 18:04, Ted Lemon <mellon@fugue.com> a écrit :
> 
> Do we have data that indicates that this would be an improvement?  
> 
>> On Aug 9, 2020, at 11:47, Philip Homburg <pch-v6ops-9@u-1.phicoh.com> wrote:
>> 
>> 
>>> 
>>> So what I'm after is the host behavior of "not onlink" for the
>>> lookup phase, the router behavior of onlink for the redirect phase,
>>> and the L bit set iff the link is P2P or a transit. E.g., in a
>>> distributed fabric, all addresses "reside on-link and can be reached
>>> directly without going through a router" and yet we want to avoid
>>> broadcast lookups.
>> 
>> Suppose we have a no-multicast bit, that tells a host to send traffic to
>> its default router when it doesn't have a neighbor in the NC cache.
>> 
>> It is not clear to me how the semantics would be different from clearing the
>> L-bit, but if you think there are considerable differences, why no write 
>> a draft that describes the use of such a bit.
>> 
>> 
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