Hi Bill, One of the values for SRv6, compared to GTP, is it's stateless. But, the goal for Marcus is open a study at 3GPP to come up with a comparable analysis for U-GTP and SRv6.
On your point for RAN-related information, I'll invite you to read the document TR. 29.892 section 6.2 *6.2.2*: Details how SRv6 can be applied within 5GC, including protocol adaptation to the N3/N9/N6 interfaces and mapping from GTP attributes (e.g., QFI, TEID) to SIDs. Thanks, Dan On Thu, Jul 31, 2025 at 12:03 PM Bill Gage <[email protected]> wrote: > Hello Markus - > > I'm a bit confused by your proposal. > > As indicated in the slide set, slides 1-7, SRv6 makes sense as a TE > replacement for MPLS in the user plane. But I don't see how SRv6 (at > least in its current form) provides value as a replacement for GTP-U. > > In addition to the PDU (IP packet) being transported, GTP-U includes a > header that contains RAN-related information fields such as end point > identifier (for mapping to a radio bearer), sequence numbers, QoS > information, etc. > > What value is SRv6 bringing to this capability? > > /bill > > On 2025-07-21 12:33 p.m., [email protected] wrote: > > Dear DMM and SRv6ops community, > > > > I would like to draw your attention to an activity that we want to bring > > to 3GPP to investigate for 6G. It is about the replacement of GTP-U by > > SRv6 for mobile user plane. This should be of particular interest to all > > operators/vendors already using/implementing SRv6 or planning its > > introduction. > > > > The last three slides in the slide set at https://datatracker.ietf.org/ > > meeting/123/materials/slides-123-srv6ops-21-advancing-deutsche-telekoms- > > traffic-engineering-for-srv6-01 <https://datatracker.ietf.org/ > > meeting/123/materials/slides-123-srv6ops-21-advancing-deutsche-telekoms- > > traffic-engineering-for-srv6-01> provide more information about our > > motivation and will be presented by me tomorrow during srv6ops session. > > > > Please read them, attend tomorrow's SRv6ops session or contact me or > > Maria if you are interested. > > > > We are particularly interested in expanding our round of supporters in > > 3GPP, getting an assessment from you that you may have already done on > > this topic and studying with you if 3GPP agrees. > > > > Br > > > > Markus > > > > _______________________________________________ > dmm mailing list -- [email protected] > To unsubscribe send an email to [email protected] >
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