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Re: [DMM] Fwd: I-D Action: draft-ietf-dmm-srv6-mobile-uplane-01.txt

Uma Chunduri <uma.chunduri@huawei.com> Tue, 06 March 2018 04:07 UTC

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From: Uma Chunduri <uma.chunduri@huawei.com>
To: Satoru Matsushima <satoru.matsushima@gmail.com>, dmm <dmm@ietf.org>
Thread-Topic: [DMM] Fwd: I-D Action: draft-ietf-dmm-srv6-mobile-uplane-01.txt
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Date: Tue, 06 Mar 2018 04:06:56 +0000
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Subject: Re: [DMM] Fwd: I-D Action: draft-ietf-dmm-srv6-mobile-uplane-01.txt
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>A Big progress is that the draft supports interworking with GTP over IPv6 in addition to GTP over IPv4.
>And we have made change SRv6 function to IPv6 encapsulation with SRH instead of SRH insertion by default.

Good to see this and this addresses the RFC 8200 issue – but yes, little bit more overhead if you include encapsulating  IPv6 address and SRH with all the IPv6 SIDs.
We have just published LSR-WG individual draft which significantly reduce the SRH overhead at least with NSPF-ID=4 (v6 SRH data plane). Check this out.


https://www.ietf.org/internet-drafts/draft-ct-isis-nspfid-for-sr-paths-00.txt


This would be presented in IS-IS (LSR) WG and/or SPRING.


--
Uma C.

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