Re: [netext] Fwd: AD Evaluation : draft-ietf-netext-update-notifications
Brian Haberman <brian@innovationslab.net> Mon, 29 July 2013 07:44 UTC
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Date: Mon, 29 Jul 2013 03:43:47 -0400
From: Brian Haberman <brian@innovationslab.net>
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To: "Sri Gundavelli (sgundave)" <sgundave@cisco.com>
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Cc: "netext@ietf.org" <netext@ietf.org>
Subject: Re: [netext] Fwd: AD Evaluation : draft-ietf-netext-update-notifications
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Hi Sri, I have deleted those points where there is no additional discussion needed... On 7/27/13 7:09 PM, Sri Gundavelli (sgundave) wrote: >> * Section 4 >> >> - Is there any guidance needed on managing the wrapping of the Sequence >> #'s? > > We just require some random number, without collusions. We can add some > text to say how to manage that field. > Ok. Just ensure that the descriptive text does not impact the Sequence # usage defined in the base PMIPv6 spec. >> >> - Are there informative references that could be added for mobility >> options other than the vendor-specific ones? > > > Potentially some some new work items that we can point to. If there are > Active I-D's will add a reference. > That would be useful. Just make sure they are informative references so that this spec does not get held up on a reference to an I-D. >> >> - Can you provide an example of where an LMA would not request an ACK >> for a UPN? > > > Message String extension. LMA sending some status messages related to the > service its offering. These service message may not need Ack's. > > Also, a UPN message with NR=RE-register may not need a Ack messages. The > LMA after sending the UPN message with that NR code can wait the PBU > message. > So, is it worth mentioning these in the draft? It seems that the LMA is in full control of whether an ACK is needed, but it *could* be useful to describe the *types* of options that do not need an ACK. I am not insisting on this. Just trying to see if such an addition would make the spec easier to understand/implement. >> >> * Section 5.2 >> >> - I am surprised by the use of SHOULD (SHOULD NOT) for re-transmission >> rules. When would you expect these rules to be ignored? > > > > Ok. Will review this again. > If the SHOULDs are appropriate, it would be good to describe a scenario (or type of scenaro) where the SHOULD would be ignored. >> >> * Section 6.1 >> >> - The 2nd bullet is useless. If an implementation does not support >> these messages, they wouldn't know to look here for responses. The base >> PMIPv6 spec covers the response message for unknown message types. > > This is about LMA sending a UPN message to a MAG that does not support and > how to deal with that scenario. > If the response to a UPN message is a Binding Error message, then the LMA > can be forced not to send any more UPN messages. > Given that section 6.1 talks about MAG considerations, it seemed odd to describe how the MAG is supposed to respond if it doesn't support this function. Regards, Brian
- [netext] Fwd: AD Evaluation : draft-ietf-netext-u… Brian Haberman
- Re: [netext] Fwd: AD Evaluation : draft-ietf-nete… Brian Haberman
- Re: [netext] Fwd: AD Evaluation : draft-ietf-nete… Sri Gundavelli (sgundave)
- Re: [netext] Fwd: AD Evaluation : draft-ietf-nete… Brian Haberman
- Re: [netext] Fwd: AD Evaluation : draft-ietf-nete… Sri Gundavelli (sgundave)
- Re: [netext] Fwd: AD Evaluation : draft-ietf-nete… Sri Gundavelli (sgundave)
- Re: [netext] Fwd: AD Evaluation : draft-ietf-nete… Brian Haberman
- Re: [netext] Fwd: AD Evaluation : draft-ietf-nete… Sri Gundavelli (sgundave)