On Thu, Aug 3, 2023 at 9:30 AM Tony Przygienda <tonysi...@gmail.com> wrote: > > well, turns out using a destination address to piggy back some computation > semantics and especially changing it in mid-flite is not a great idea. Who > knew ...
Tony, We already have a working example on how to change destination addresses in flight and deal with L4 checksums: NAT. So compressed SIDs in Destination address could work if typical NAT processing to adjust the TCP/UDP checksum is performed each time the Destination address is written with a different SID. This method would require no update to RFC8200 nor any changes to deployed IPv6 stacks. Tom > > as to bis'ing STD86 I was quickly thinking "it's not April yet" ... > > -- tony > > > On Thu, Aug 3, 2023 at 9:43 AM <xiao.m...@zte.com.cn> wrote: >> >> Hi Tal, >> >> >> Please note that there is an existing draft: >> >> https://datatracker.ietf.org/doc/draft-xiao-spring-srv6-checksum/ >> >> which attempts to address the problem you found and another one described in >> the penultimate paragraph of the Introduction section, in a different way >> not requiring to update RFC 8200. >> >> >> Best Regards, >> >> Xiao Min >> >> Original >> From: TalMizrahi <tal.mizrahi....@gmail.com> >> To: spring@ietf.org <spring@ietf.org>;i...@ietf.org <i...@ietf.org>; >> Date: 2023年08月03日 15:03 >> Subject: [IPv6] New draft: L4 Checksums in SRv6 >> >> Hi, >> >> This new draft introduces a proposed update to [RFC8200], which is >> intended to address compressed segment lists in SRv6 >> [draft-ietf-spring-srv6-srh-compression]. >> >> Link to the new draft: >> https://datatracker.ietf.org/doc/draft-mizrahi-spring-l4-checksum-srv6/ >> >> There was some discussion in the SPRING mailing list about this issue. >> >> The current thread is intended to allow a wider discussion that >> includes the 6MAN working group, and therefore the new draft includes >> a wider background. >> >> Feedback will be welcome. >> >> Cheers, >> Tal. >> >> -------------------------------------------------------------------- >> IETF IPv6 working group mailing list >> i...@ietf.org >> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 >> -------------------------------------------------------------------- >> >> >> -------------------------------------------------------------------- >> IETF IPv6 working group mailing list >> i...@ietf.org >> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 >> -------------------------------------------------------------------- > > -------------------------------------------------------------------- > IETF IPv6 working group mailing list > i...@ietf.org > Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 > -------------------------------------------------------------------- _______________________________________________ spring mailing list spring@ietf.org https://www.ietf.org/mailman/listinfo/spring
