Re: Status of subnet-local multicast?
Stig Venaas <stig@venaas.com> Wed, 27 June 2012 17:53 UTC
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Date: Wed, 27 Jun 2012 10:53:00 -0700
From: Stig Venaas <stig@venaas.com>
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Subject: Re: Status of subnet-local multicast?
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On 6/27/2012 10:13 AM, Kerry Lynn wrote: > Greetings, > > RFC 3484 section 3.1 defines "subnet-local (0x03)" multicast scope, but > later RFC 4291 section 2.7 defines this multicast scope value as reserved. > Can I ask if the later interpretation is the correct one? > > I ask in the context of e.g. > http://tools.ietf.org/html/draft-lynn-homenet-site-mdns > where we need a scope greater than link-local in order to span a 6LoWPAN > subnet, but less than site-local in order to reserve the property "Each > interface > belongs to exactly one zone of each possible scope." for future site-local > protocols that might include the 6LoWPAN router port. > > Should I select admin-local scope, or is subnet-local scope available > for use? I've always been a bit curious why it got marked as reserved. It was (unassigned) in RFC 2373, but reserved in RFC 3513. I don't remember any discussion on this. It seems 4 admin-local would be appropriate then. Unless perhaps if 3 is somehow reserved to allow for maybe future use like this... Stig > > Thanks, -K- > > > -------------------------------------------------------------------- > IETF IPv6 working group mailing list > ipv6@ietf.org > Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 > -------------------------------------------------------------------- >
- Status of subnet-local multicast? Kerry Lynn
- Re: Status of subnet-local multicast? Stig Venaas
- Re: Status of subnet-local multicast? Kerry Lynn
- Re: Status of subnet-local multicast? Ralph Droms