RE: [RRG] GSE?
"Tony Li" <tony.li@tony.li> Wed, 11 June 2008 17:34 UTC
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From: Tony Li <tony.li@tony.li>
To: "'Mayutan A.'" <mayutan.arumaithurai@gmail.com>, 'Robin Whittle' <rw@firstpr.com.au>
Cc: 'Routing Research Group' <rrg@psg.com>
Subject: RE: [RRG] GSE?
Date: Wed, 11 Jun 2008 10:34:49 -0700
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Hi Mayutan, Robin, Isn't the Six-One proposal by Christian Vogt an enhancement of the GSE. http://www.watersprings.org/pub/id/draft-vogt-rrg-six-one-01.txt Correct me if I am wrong. You are exactly correct. I still encourage folks to read GSE independently, just so you have some perspective on Christian's changes. Also, some of the work that Ran Atkinson has done has been in part derived from GSE. GSE seems to have been developed briefly around 1997. I understand that applying it to IPv6 as used today would involve major changes in routers, host stacks and some or all applications. There may well be some major attractions in doing this, if it could be done, but it sounds like a radical thing on which to bet the future of the Net. Welcome to the IRTF. Our job is research. No job too large, no change unthinkable. Could you or someone else put together a proposal and link to it from the RRG wiki? An 8 page summary and analysis document would be good too. Others should feel free to step up here. I'm trying to remain neutral. A crucial part of this would be the time-frame for transitioning the current IPv6 system to whatever it is you are planning, and then having a transition plan for most end-users from IPv4 to the new system. I think it would also be good to explain why you would prefer to do this in a hurry for IPv6 - due to whatever urgency you or other people might think about the IPv4 scaling problem - rather than fixing the IPv4 problem with a map-encap scheme and then being able to take more time on whatever it is you propose for IPv6. I'm not in a hurry to do anything. There's no need. I'd much rather Get It Right. Whatever we do here is forever. I haven't read enough to know how it provides multihoming and portability (of the ESD part of the address) when changing ISPs. The ESD would be a constant when changing ISPs. That's the whole point. Identifiers are decoupled from locators. So how does the Routing Goop and STP get set when the packet leaves the site for another? Does a router change them or does the sending host have to get it right. Does there need to be a mapping function and consequently a mapping database to determine what to set these to, since the ESD is what uniquely identifies the destination host? Presumably set by a router when you exit the subnet and/or the site. Yes, there needs to be a mapping database to determine destination RG and ESD. One might reasonably extend DNS to do this. No mapping database is needed in the site's local routers as they would presumably be configured with the RG or learn it via some other management mechanism such as SNMP, DHCP, the IGP, or your favorite NMS. What lead to the demise of GSE ten years ago? I wasn't directly involved, but my read was that it was politics. Because it modified v6, it was unacceptable to those that felt that v6 was perfect. We seem to be over that now... Regards, Tony -- to unsubscribe send a message to rrg-request@psg.com with the word 'unsubscribe' in a single line as the message text body. archive: <http://psg.com/lists/rrg/> & ftp://psg.com/pub/lists/rrg
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