This concern is overcome by events; IP Parcels and Advanced Jumbos of all sizes now support UDP options.
From: Joe Touch <[email protected]> Sent: Friday, September 27, 2024 8:48 AM To: Templin (US), Fred L <[email protected]> Cc: Fred L Templin <[email protected]>; Tim Chown <[email protected]>; Internet Area <[email protected]>; IPv6 List <[email protected]>; tsvwg IETF list <[email protected]>; Fred L Templin <[email protected]> Subject: Re: [Int-area] Re: IP Parcels and Advanced Jumbos (AJs) Content changes are not allowed in AUTH48, but We just concluded WG last call. On Sep 27, 2024, at 8:43 AM, Templin (US), Fred L <[email protected]<mailto:[email protected]>> wrote: > UDP options cannot currently be used for still larger sizes Actually, there is an easy fix for this which can be added to the queue for AUTH48. Fred From: Templin (US), Fred L <[email protected]<mailto:[email protected]>> Sent: Friday, September 27, 2024 8:19 AM To: [email protected]<mailto:[email protected]> Cc: Tim Chown <[email protected]<mailto:[email protected]>>; Internet Area <[email protected]<mailto:[email protected]>>; IPv6 List <[email protected]<mailto:[email protected]>>; tsvwg IETF list <[email protected]<mailto:[email protected]>> Subject: [Int-area] Re: IP Parcels and Advanced Jumbos (AJs) Hi Joe, >That approach to UDP jumbo grams is incompatible with UDP options. IP parcels and Advanced Jumbos per my drafts are compatible with UDP options for sizes up to ~64KB. UDP options cannot currently be used for still larger sizes, but I suspect it will be a long time before we have to worry about that. Fred From: [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>> Sent: Friday, September 27, 2024 8:13 AM To: Templin (US), Fred L <[email protected]<mailto:[email protected]>> Cc: Brian E Carpenter <[email protected]<mailto:[email protected]>>; Tom Herbert <[email protected]<mailto:[email protected]>>; Tim Chown <[email protected]<mailto:[email protected]>>; Internet Area <[email protected]<mailto:[email protected]>>; IPv6 List <[email protected]<mailto:[email protected]>>; tsvwg IETF list <[email protected]<mailto:[email protected]>> Subject: [EXTERNAL] Re: [Int-area] IP Parcels and Advanced Jumbos (AJs) EXT email: be mindful of links/attachments. On Sep 27, 2024, at 7:58 AM, Templin (US), Fred L <[email protected]<mailto:[email protected]>> wrote: Indeed. But if sendmsg() and recvmsg() can and do generate RFC2675 packets, it means that any discussion of obsoleting RFC2675 should be off the table. No one that I know of has suggested obsoleting RFC2675 - my documents do not say "obsoletes" (nor even "updates”). That approach to UDP jumbo grams is incompatible with UDP options. And yes, there was a proposal to move that RFC to historic: Jones, T., G. Fairhurst, "Change Status of RFC 2675 to Historic," draft-jones-6man-historic-rfc2675, May 2019. We COULD have a new option with a longer length, but that’s not in our baseline draft. Joe
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