Re: u/g in general [was Mail from softwire working group about 4rd]

2012-12-13 Thread Brian E Carpenter
On 12/12/2012 21:32, Ole Trøan wrote: I think the only way to make progress on this question is to discuss two points in a much more general way: 1. Does the current mapping of the u bit in the modified EUI format have any value? 2. Does the current mapping of the g bit in the modified EUI

Re: u/g in general [was Mail from softwire working group about 4rd

2012-12-13 Thread Rémi Després
2012-12-12 18:26, Ran Atkinson ran.atkin...@gmail.com : On 12 Dec 2012, at 12:21 , Rémi Després wrote: Do you know any deployment with u=g=1 in this context ? There is limited use today of IPv6 addresses that have apparent unicast routing prefixes, but contain multicast group IDs in

Re: u/g in general [was Mail from softwire working group about 4rd]

2012-12-13 Thread RJ Atkinson
Aside: I'm departing on travel today, and will be offline for several days. I apologise in advance for the brevity of this note, but I lack time to write a longer note. Earlier Brian Carpenter wrote: I believe it's true that the u bit has no value for ILNP. At one point there

u/g in general [was Mail from softwire working group about 4rd]

2012-12-12 Thread Brian E Carpenter
I think the only way to make progress on this question is to discuss two points in a much more general way: 1. Does the current mapping of the u bit in the modified EUI format have any value? 2. Does the current mapping of the g bit in the modified EUI format have any value? If the answer to

Re: u/g in general [was Mail from softwire working group about 4rd]

2012-12-12 Thread Rémi Després
2012-12-12 12:45, Brian E Carpenter brian.e.carpen...@gmail.com : I think the only way to make progress on this question is to discuss two points in a much more general way: 1. Does the current mapping of the u bit in the modified EUI format have any value? 2. Does the current mapping

Re: u/g in general [was Mail from softwire working group about 4rd

2012-12-12 Thread Ran Atkinson
On Weds 12th December, Remi Despres wrote, in part: Not sure however that the two proposed questions are clear enough because today: - some IIDs have u = 0, and some have u = 1, - some IIDs have g = 0, and some have g = 1. The only combination that isn't used is u=g=1. While U==G==1 is

Re: u/g in general [was Mail from softwire working group about 4rd

2012-12-12 Thread Rémi Després
Le 2012-12-12 à 17:23, Ran Atkinson ran.atkin...@gmail.com a écrit : On Weds 12th December, Remi Despres wrote, in part: Not sure however that the two proposed questions are clear enough because today: - some IIDs have u = 0, and some have u = 1, - some IIDs have g = 0, and some have g =

Re: u/g in general [was Mail from softwire working group about 4rd

2012-12-12 Thread Ran Atkinson
On 12 Dec 2012, at 12:21 , Rémi Després wrote: Do you know any deployment with u=g=1 in this context ? There is limited use today of IPv6 addresses that have apparent unicast routing prefixes, but contain multicast group IDs in the low-order 64-bits (IID). Yours, Ran

Re: u/g in general [was Mail from softwire working group about 4rd]

2012-12-12 Thread Ole Trøan
I think the only way to make progress on this question is to discuss two points in a much more general way: 1. Does the current mapping of the u bit in the modified EUI format have any value? 2. Does the current mapping of the g bit in the modified EUI format have any value? If the