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Re: [Roll] [roll] #105: trickle-mcast: how to determine scope of MPL domain

Michael Richardson <mcr+ietf@sandelman.ca> Mon, 12 November 2012 22:14 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: "<roll@ietf.org>" <roll@ietf.org>
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References: <058.e817419e990e1afb26be9aa25d5cfc21@trac.tools.ietf.org> <B50D0F163D52B74DA572DD345D5044AF0F6EFA99@xmb-rcd-x04.cisco.com> <50932647.3050509@exegin.com> <B50D0F163D52B74DA572DD345D5044AF0F6F2837@xmb-rcd-x04.cisco.com> <5094202F.4010805@exegin.com> <B50D0F163D52B74DA572DD345D5044AF0F6F874A@xmb-rcd-x04.cisco.com> <509C03C2.50809@exegin.com> <B50D0F163D52B74DA572DD345D5044AF0F714CBF@xmb-rcd-x04.cisco.com> <509C5F00.2050204@exegin.com> <509D5AF5.4040304@exegin.com> <509DAFEF.5020504@exegin.com>
Comments: In-reply-to Dario Tedeschi <dat@exegin.com> message dated "Fri, 09 Nov 2012 17:37:51 -0800."
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Date: Mon, 12 Nov 2012 17:14:02 -0500
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Subject: Re: [Roll] [roll] #105: trickle-mcast: how to determine scope of MPL domain
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see inline

>>>>> "Dario" == Dario Tedeschi <dat@exegin.com> writes:
    Dario> Non-link-local would be fine with the following caveats:

    Dario> 1. A non-link-local mc address that *uniquely* identifies the MPL
    Dario> domain must exist, whether it be IANA assigned or determined at
    Dario> run-time.

    Dario> 2. A packet injected into an MPL domain that has a mc address that does
    Dario> not match the MPL domain address must be tunneled.

okay...
a packet with a link-local mc address does not need tunnelling, because,
by definition, it can not leave the MPL domain, so it never needs
tunnelling?

-- 
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works

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