Re: [mdnsext] Discussion of BoF during Berlin IETF

Michael Richardson <mcr+ietf@sandelman.ca> Tue, 11 June 2013 00:12 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
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Date: Mon, 10 Jun 2013 20:11:00 -0400
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Subject: Re: [mdnsext] Discussion of BoF during Berlin IETF
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>>>>> "David" == David Farmer <farmer@umn.edu> writes:
    >> But, that doesn't prevent or clearly signal, that mDNS may be
    >> *unwelcome* on a particular network.   Enterprise folks might want to do
    >> that. I'm not claiming that they will, or should, succeed, btw.  I'm
    >> pointing out that we don't know what they want, because they don't tend
    >> to participate.

    David> While I wouldn't recommend general use of such a mode of
    David> operation I do see 
    David> some special situations where I think it could be necessary,
    David> even on my own 
    David> network, especially in networks or subnets with high security
    David> requirements. 

Exactly (we are in violent agreement).
Or where having nodes "find" each other automatically is undesireable.

Do you feel you can represent the Enterprise administrator?
Do we need to reach out some other place? 

There may also be situations where multicast is harmful (heavily
congested wifi, LLNs which do not implement whatever LLN friendly mDNS
we make).

Blackholing multicast traffic may result in timeouts.

-- 
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]   Michael Richardson, Sandelman Software Works        | network architect  [ 
]     mcr@sandelman.ca  http://www.sandelman.ca/        |   ruby on rails    [