Re: [dna] Applicability statement for Simple DNA (Providing text to resolve issue #11)
Julien Laganier <julien.laganier.ietf@googlemail.com> Wed, 24 September 2008 14:14 UTC
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To: "Premec, Domagoj" <domagoj.premec@siemens.com>
Date: Wed, 24 Sep 2008 16:14:30 +0200
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From: Julien Laganier <julien.laganier.ietf@googlemail.com>
Cc: dna@ietf.org
Subject: Re: [dna] Applicability statement for Simple DNA (Providing text to resolve issue #11)
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As per RFC5213 all of the MAGs of a PMIPv6 domain that can serve as default router for a MN would present the same link-local address to the MN. The link-layer address is either pre-configured on all MAGs, or sent by the LMA to the MAG in a Binding Acknowledgement. --julien On Wednesday 24 September 2008, Premec, Domagoj wrote: > I was thinking of both the IP and the link-layer address. From the > host perspective, this looks similar to the case where the current > default router goes down and at the same time a new default router > appears on the link. I'm not sure about the case where both ARs are > using the same IP address but their link layer addresses are > different. Updating only the link layer address while the IP address > remains the same may be considered as a special case, but I'm not > sure if there are any security considerations. > > domagoj > > > -----Original Message----- > > From: Julien Laganier [mailto:julien.laganier.ietf@googlemail.com] > > Sent: 24. rujan 2008 15:48 > > To: dna@ietf.org > > Cc: Premec, Domagoj; Suresh Krishnan; JinHyeock Choi; JinHyeock > > Choi Subject: Re: [dna] Applicability statement for Simple DNA > > (Providing text to resolve issue #11) > > > > Quick question for clarification. > > > > You said "the host should quickly update its default router > > to the address of the new AR". > > > > By "address" I'm assuming you mean "link layer address". Is > > that correct? > > > > --julien > > > > On Wednesday 24 September 2008, Premec, Domagoj wrote: > > > I think that there may be cases where the host may benefit > > > > from simple > > > > > DNA even when it attaches to a previously unvisited link. > > > > For example, > > > > > as the host moves within the PMIP domain, the IPv6 prefix > > > > assigned to > > > > > the host moves together with the host across ARs (MAGs). > > > When attaching to a new link the host will see the new AR > > > > advertising > > > > > the same prefix, but the old AR will not be reachable any more. > > > In this case, the host should quickly update its default router > > > to the address of the new AR to avoid loosing packets sent to the > > > > address of > > > > > a previous default router. There is no need for the host to > > > execute any address configuration/verification procedures. This > > > > would provide > > > > > better handover perfomance when moving within the PMIP > > > > domain. Is this > > > > > someting that could be accomodated by the simple DNA? > > > > > > domagoj > > > > > > > -----Original Message----- > > > > From: dna-bounces@ietf.org [mailto:dna-bounces@ietf.org] > > > > On Behalf > > > > > > Of Suresh Krishnan > > > > Sent: 23. rujan 2008 17:05 > > > > To: dna@ietf.org; JinHyeock Choi; JinHyeock Choi > > > > Subject: [dna] Applicability statement for Simple DNA > > > > (Providing text to resolve issue #11) > > > > > > > > Hi Folks, > > > > > > > > I propose to add the following text to a new section called > > > > "Applicability" to resolve issue #11. The previous > > > > applicability section will be moved into a new section called > > > > "Working assumptions". > > > > > > > > NEW TEXT: > > > > ========= > > > > > > > > The Simple DNA protocol is provides substantial > > > > benefits in some > > > > > > scenarios and does not provide any benefit at all in > > > > certain other > > > > > > scenarios. This is intentional as Simple DNA was designed for > > > > simplicity rather than completeness. In particular, the > > > > Simple DNA > > > > > > protocol provides maximum benefits when a host moves > > > > between a > > > > > > small > > > > set of known links. When a host moves to a > > > > completely new link > > > > > > that > > > > is previously unknown, the performance of the Simple DNA > > > > protocol will be identical to that using standard > > > > neighbor discovery > > > > > > procedures [RFC4861]. > > > > > > > > If you have any issues with this text, please respond to > > > > this mail > > > > > > on list. > > > > > > > > Thanks > > > > Suresh > > > > > > > > _______________________________________________ > > > > dna mailing list > > > > dna@ietf.org > > > > https://www.ietf.org/mailman/listinfo/dna > > > > > > _______________________________________________ > > > dna mailing list > > > dna@ietf.org > > > https://www.ietf.org/mailman/listinfo/dna _______________________________________________ dna mailing list dna@ietf.org https://www.ietf.org/mailman/listinfo/dna
- [dna] Applicability statement for Simple DNA (Pro… Suresh Krishnan
- Re: [dna] Applicability statement for Simple DNA … Premec, Domagoj
- Re: [dna] Applicability statement for Simple DNA … Julien Laganier
- Re: [dna] Applicability statement for Simple DNA … Suresh Krishnan
- Re: [dna] Applicability statement for Simple DNA … Premec, Domagoj
- Re: [dna] Applicability statement for Simple DNA … Julien Laganier
- Re: [dna] Applicability statement for Simple DNA … Suresh Krishnan
- Re: [dna] Applicability statement for Simple DNA … Julien Laganier
- Re: [dna] Applicability statement for Simple DNA … Suresh Krishnan
- Re: [dna] Applicability statement for Simple DNA … Julien Laganier
- Re: [dna] Applicability statement for Simple DNA … JinHyeock Choi
- Re: [dna] Applicability statement for Simple DNA … Suresh Krishnan