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Re: [DMM] Additional questions/comments on draft-ietf-dmm-srv6-mobile-uplane-13

David Allan I <david.i.allan@ericsson.com> Fri, 23 July 2021 17:50 UTC

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From: David Allan I <david.i.allan@ericsson.com>
To: "dmm@ietf.org" <dmm@ietf.org>
Thread-Topic: [DMM] Additional questions/comments on draft-ietf-dmm-srv6-mobile-uplane-13
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Subject: Re: [DMM] Additional questions/comments on draft-ietf-dmm-srv6-mobile-uplane-13
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Hi:

Looking over this draft it strikes me that IF you are discussing a GTP replacement, there are a few unaddressed gaps...or at least I see no mention of them.

-  adding X2 to the list of interfaces to be supported
-  support for end-marker for handoff stream synchronization (probably could fit the unused bit in Args.Mob.Session but frankly I have not studied this in detail)
-  support for QMP (quality measurement protocol), which I believe needs to also extend across the radio interface so is not simply local to the GTP domain and can be "stunt doubled"
-  support for paging policy presence/indication

If this has come up elsewhere, let me know

Cheers
Dave

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