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Re: 6MAN Adoption call on raft-chakrabarti-nordmark-6man-efficient-nd-04

Mikael Abrahamsson <swmike@swm.pp.se> Thu, 09 January 2014 07:57 UTC

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Date: Thu, 09 Jan 2014 08:57:28 +0100
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: Lorenzo Colitti <lorenzo@google.com>
Subject: Re: 6MAN Adoption call on raft-chakrabarti-nordmark-6man-efficient-nd-04
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On Thu, 9 Jan 2014, Lorenzo Colitti wrote:

> Why not? What's the downside of sending out an NS for an address that's 
> not there? You consume an ND cache slot for the incomplete entry, but if 
> you use the optimizations you'll always have enough space to avoid a DoS 
> scenario.

Because potentially this would cause hundreds or thousands of NS multicast 
packets on the LAN per second in a ddos scenario?

If we can avoid the router having to learn anything by means of external 
packet triggers, I think it would be a big win.

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se

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