Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local

2013-07-26 Thread JINMEI Tatuya / 神明達哉
At Thu, 25 Jul 2013 14:46:45 +, Ralph Droms (rdroms) rdr...@cisco.com wrote: I understand, but perhaps it would be better, if, when another use case comes along, they write a document explaining why scope-3 is correct and non-conflicting with the trickle mcast use case. I don't

Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local

2013-07-26 Thread Michael Richardson
Having had a number of private exchanges with Ralph, I support the document as worded. It was not clear to me before that trickle-mcast will be *expected* to define what it means for the scope to be defined automatically from the network topology I thought that further clarification of the use

Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local

2013-07-25 Thread Ralph Droms (rdroms)
Michael... On Jul 24, 2013, at 6:37 PM 7/24/13, Michael Richardson mcr+i...@sandelman.ca wrote: Ralph Droms (rdroms) rdr...@cisco.com wrote: I would still like an explanation of why subnet is the wrong term. When would scope-3 would be used such that it would not correspond to the set

Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local

2013-07-25 Thread Ulrich Herberg
I have pointed out two documents in my earlier email that explain in long detail why I believe that multi-hop subnets are a really bad idea. The AUTOCONF RFC 5889 presents an architecture for avoiding all these problems by using /128 prefixes. In that regards, a subnet wide flooding would be

Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local

2013-07-25 Thread Michael Richardson
Ralph Droms (rdroms) rdr...@cisco.com wrote: Ralph Droms (rdroms) rdr...@cisco.com wrote: I would still like an explanation of why subnet is the wrong term. When would scope-3 would be used such that it would not correspond to the set of links on which a /64 (or other

Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local

2013-07-25 Thread Michael Richardson
It is important to keep the 6man CC, since the document is a 6man document. I will top-post your entire comments for 6man, but then copy them again and comment. For me RFC 1136 was quite clarifying. It states that the Internet subnet term is ambiguous - It refers to one-hop IP

Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local

2013-07-25 Thread Ralph Droms (rdroms)
On Jul 25, 2013, at 4:07 PM 7/25/13, Michael Richardson mcr+i...@sandelman.ca wrote: Ralph Droms (rdroms) rdr...@cisco.com wrote: Ralph Droms (rdroms) rdr...@cisco.com wrote: I would still like an explanation of why subnet is the wrong term. When would scope-3 would be used such that it

Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local

2013-07-24 Thread Robert Cragie
+1 So subnet is not the right term. I think network as Ralph wrote is fine but if the disassociation with network addressing needs to be clear, why not use the term domain? After all, trickle-mcast talks about MPL Domains. I appreciate it may have some pre-established connotations but from

Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local

2013-07-24 Thread Mark ZZZ Smith
- Original Message - From: Robert Cragie robert.cra...@gridmerge.com To: r...@ietf.org; 6...@ietf.org Cc: Sent: Wednesday, 24 July 2013 3:44 AM Subject: Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local +1 So subnet is not the right term. I think

Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local

2013-07-24 Thread Michael Richardson
I would still like an explanation of why subnet is the wrong term. When would scope-3 would be used such that it would not correspond to the set of links on which a /64 (or other size) is used? -- Michael Richardson mcr+i...@sandelman.ca, Sandelman Software Works pgpsplhkiOMCD.pgp

Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local

2013-07-24 Thread Ralph Droms (rdroms)
On Jul 24, 2013, at 4:58 PM 7/24/13, Michael Richardson mcr+i...@sandelman.ca wrote: I would still like an explanation of why subnet is the wrong term. When would scope-3 would be used such that it would not correspond to the set of links on which a /64 (or other size) is used? Hm, I

Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local

2013-07-24 Thread Michael Richardson
Ralph Droms (rdroms) rdr...@cisco.com wrote: I would still like an explanation of why subnet is the wrong term. When would scope-3 would be used such that it would not correspond to the set of links on which a /64 (or other size) is used? Hm, I thought I responded but

Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local

2013-07-24 Thread Don Sturek
Hi Ulrich, I did review the you cited in your earlier e-mail (RFC 5889). It seems that RFC suggests that link local addresses not be generated for interfaces with undetermined link characteristics (which certainly apply to route over protocols like ROLL RPL and the MANET protocols). However,

Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local

2013-07-17 Thread Michael Richardson
Ralph Droms rdroms.i...@gmail.com wrote: This draft is on the 6man agenda for Berlin. I expect the discussion will be taken up there. In my opinion, the multicast scope should not be tied, thought the words in the description of the scope, to the address assignment

Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local

2013-07-15 Thread Ralph Droms (rdroms)
(BCC: 6man mailing list, which is where this document is intended to become a work item) On Jul 11, 2013, at 10:14 PM 7/11/13, Michael Richardson mcr+i...@sandelman.ca wrote: The most recent rev of draft-droms-6man-multicast-scopes defines scope 0x03 as: 3 Network-Specific scope,