[pim] Re: [Bier] Re: [Mcast4AI] Re: Invitation t o the "AI Network Multicast" side meeting at IETF 126
Greg Shepherd <[email protected]> Fri, 17 Jul 2026 07:56:41 -0700
| Newsgroups | gmane.ietf.pim,gmane.ietf.rtgwg |
|---|---|
| Message-ID | <[email protected]> |
--===============8427463159624660192== Content-Type: multipart/alternative; boundary=Apple-Mail-4A7930F5-7BCE-4192-B6F2-B06BD0CAF91B Content-Transfer-Encoding: 7bit --Apple-Mail-4A7930F5-7BCE-4192-B6F2-B06BD0CAF91B Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <html class=3D"apple-mail-supports-explicit-dark-mode"><head><meta http-equi= v=3D"content-type" content=3D"text/html; charset=3Dutf-8"></head><body dir=3D= "auto">Any chance of remote participation?<div><br id=3D"lineBreakAtBeginnin= gOfSignature"><div dir=3D"ltr">- Shep</div><div dir=3D"ltr"><br><blockquote t= ype=3D"cite">On Jul 17, 2026, at 5:26=E2=80=AFAM, Adrian Farrel <adrian@o= lddog.co.uk> wrote:<br><br></blockquote></div><blockquote type=3D"cite"><= div dir=3D"ltr">=EF=BB=BF =20 <meta charset=3D"UTF-8"> =20 =20 <div>I think the Secretariat automagically record the side meeting webex s= essions, but can be a week or more until they abailable.</div> <div class=3D"default-style"> </div> <div class=3D"default-style">A</div> <blockquote type=3D"cite"> <div>On 17/07/2026 09:44 CEST Tony Przygienda <[email protected]>= wrote:</div> <div> </div> <div> </div> <div dir=3D"ltr"> <div>interesting enough, record pls if you can. overlaps with mpls so no= t a very good slot to attend in person </div> <div> </div> <div>thanks </div> <div> </div> <div>-- tony </div> </div> <br> <div class=3D"gmail_quote gmail_quote_container"> <div class=3D"gmail_attr" dir=3D"ltr"> On Fri, Jul 17, 2026 at 9:36=E2=80=AFAM Yisong Liu <<a href=3D"mailt= o:[email protected]">[email protected]</a>> wrote: </div> <blockquote> <div style=3D"background-color: #ffffff; color: #000000; line-height: 1= .5; word-break: break-all;"> <span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91;">Dea= r All,</span> </div> <div style=3D"background-color: #ffffff; color: #000000; line-height: 1= .5; word-break: break-all;"> <span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91;">&nb= sp;</span> </div> <div style=3D"background-color: #ffffff; color: #000000; line-height: 1= .5; word-break: break-all;"> <p class=3D"MsoNormal"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9= =9B=85=E9=BB=91; font-size: medium;">We will organize a side meeting of = ;AI Network Multicast on <strong>Tuesday, July 21, 9:15-= 10:45</strong> (Europe/Vienna), in <strong>room Grand Klimt Hall 3</str= ong>. If you are interested in AIDC or network layer multicast, please come t= o the side meeting to discuss. If you are remote participant, please access t= he meeting via the link: <a href=3D"https://ietf.webex.com/meet/sidemeetings= 2" target=3D"_blank" rel=3D"noopener">https://ietf.webex.com/meet/sidemeetin= gs2</a><u></u><u></u></span></p> <p class=3D"MsoNormal"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9= =9B=85=E9=BB=91; font-size: medium;"> <u></u><u></u></span></p> <p class=3D"MsoNormal"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9= =9B=85=E9=BB=91; font-size: medium;">This side meeting builds on previous si= de meeting discussions and will dive deeper into AI-specific multicast use c= ases and requirements, including MoE token dispatch, while conducting prelim= inary technical analyses of potential solutions such as BIER enhancements an= d new protocol designs, with emphasis on reliability, scalability, and quant= itative performance evaluation to guide future standardization.<u></u><u></u= ></span></p> <p class=3D"MsoNormal"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9= =9B=85=E9=BB=91; font-size: medium;"> <u></u><u></u></span></p> <p class=3D"MsoNormal"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9= =9B=85=E9=BB=91; font-size: medium;">Please check the initial agenda of= the side meeting in the following: <u></u><u></u></span></p> <p class=3D"MsoNormal"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9= =9B=85=E9=BB=91; font-size: medium;"><strong>0. Welcome & Review &n= bsp;Chairs</strong> <u></u><u></u></span></p> <p class=3D"MsoNormal"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9= =9B=85=E9=BB=91; font-size: medium;"><strong>1. Multicast Problem State= ment for AIDC ( Junye Zhang, Remote, China Mobile)</strong>  = ;<u></u><u></u></span></p> <p class=3D"MsoNormal"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9= =9B=85=E9=BB=91; font-size: medium;"><strong>Abstract:</strong> Multicast is= a promising technique for enhancing the efficiency of point-to-multipoint d= ata transmission during LLM training and inference in AI Data Centers (AIDCs= ). However, AIDCs demand bidirectional interaction, lossless reliability, mi= crosecond scale dynamics, sparse groups, and simple control/data planes. Thi= s talk will give a brief problem statement of multicast in AIDCs.<u></u><u><= /u></span></p> <p class=3D"MsoNormal"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9= =9B=85=E9=BB=91; font-size: medium;"><strong>2.Can LLMs Reason Structurally?= Benchmarking via the lens of Data Structures, with possible benefit from Mu= lticast ( Yingxi Li, Remote, Stanford University)</strong> <u></u><u></= u></span></p> <p class=3D"MsoNormal"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9= =9B=85=E9=BB=91; font-size: medium;"><strong>Abstract: </strong>As large lan= guage models (LLMs) are increasingly deployed on complex tasks that demand m= ulti-step decision-making, evaluating their algorithmic reasoning capabiliti= es becomes critical. This talk introduces DSR-Bench, a diagnostic benchmark g= rounded in data structures, designed to assess structural reasoning=E2=80=94= the ability to perceive and manipulate relational patterns such as order, hi= erarchy, and connectivity, including the benchmark design, the evaluation me= thodology, and key empirical findings. The talk concludes with a brief discu= ssion of potential implications for AI data-center networks, raising the que= stion of whether efficient multicast communication could benefit long-contex= t inference, inference-time search, and distributed model execution.<u></u><= u></u></span></p> <p class=3D"MsoNormal" style=3D"margin-left: 0pt; text-indent: 0pt;"><= span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91; font-size: m= edium;"><strong>3.In-Network Computing on Switches (IFEC): Remodeling Multic= ast and Accelerating Communication for AI Clusters (Changwang Lin, On-= site, Alibaba & H3C)</strong><u></u><u></u></span></p> <p class=3D"MsoNormal"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9= =9B=85=E9=BB=91; font-size: medium;"><strong>Abstract: </strong>Describe an i= nnovative collaborative computing paradigm named IFEC (In Fabric Extended-Co= mputation). Its core objective is to address the worsening cross-xPU communi= cation bottlenecks in large-scale AI training and inference, driven by risin= g model parallelism and the widespread adoption of architectures such as MoE= .<u></u><u></u></span></p> <p class=3D"MsoNormal"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9= =9B=85=E9=BB=91; font-size: medium;"><strong>4. Multicast in Scal= e-Up (Haibo Wang, On-site, Huawei)</strong><u></u><u></u></span></p> <p class=3D"MsoNormal"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9= =9B=85=E9=BB=91; font-size: medium;"><strong>Abstract:</strong> With the rap= id development of AI services, optimizing AI cluster performance has become i= ncreasingly important. Notably, some AI service scenarios may exhibit multic= ast-like communication patterns (e.g., MOE dispatch).Traditional network mul= ticast relies on single-direction forwarding, which conflicts with key AI se= rvice requirements: interactivity, reliability, dynamics, and sparsity. Thes= e mismatches introduce significant challenges in scale-out network. Interest= ingly, when AI services operate within a scale-up network, these challenges b= ecome more manageable. Consequently, we propose first focusing on leveraging= multicast to enhance scale-up AI service performance, before extending the s= olution to broader distributed deployments.</span></p> <p class=3D"MsoNormal"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9= =9B=85=E9=BB=91; font-size: medium;"><strong>5. Open Discussion</strong= ><u></u><u></u></span></p> <p class=3D"MsoNormal"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9= =9B=85=E9=BB=91; font-size: medium;"> <u></u><u></u></span></p> <p style=3D"margin-top: 0pt; margin-left: 0pt; text-indent: 0pt; paddi= ng: 0pt; background: #ffffff;"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF= =E9=9B=85=E9=BB=91; font-size: medium;">Welcome to join us! We hope to see y= ou there!<u></u><u></u></span></p> <p class=3D"MsoNormal"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9= =9B=85=E9=BB=91; font-size: medium;">If you have any questions, please feel f= ree to contact us: <a href=3D"mailto:[email protected]" target=3D"_b= lank" rel=3D"noopener">[email protected]</a>, <a href=3D"mailto:mmcb= [email protected]" target=3D"_blank" rel=3D"noopener">[email protected]</a><= /span></p> </div> <div style=3D"background-color: #ffffff; color: #000000; line-height: 1= .5; word-break: break-all;"> </div> <div style=3D"background-color: #ffffff; color: #000000; line-height: 1= .5; word-break: break-all;"> <span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91;">Bes= t Regards</span> </div> <div style=3D"background-color: #ffffff; color: #000000; line-height: 1= .5; word-break: break-all;"> <span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91;">Yis= ong <br></span> <br> <br> <br> <br> <span style=3D"font-size: 16px; font-family: =E5=AE=8B=E4=BD=93;">&nbs= p;</span> </div> _______________________________________________ <br> BIER mailing list -- <a href=3D"mailto:[email protected]" target=3D"_blank"= rel=3D"noopener">[email protected]</a> <br> To unsubscribe send an email to <a href=3D"mailto:[email protected]" t= arget=3D"_blank" rel=3D"noopener">[email protected]</a> </blockquote> </div> _______________________________________________ <br> Mcast4AI mailing list -- [email protected] <br> To unsubscribe send an email to [email protected] </blockquote> =20 <span>_______________________________________________</span><br><span>BIER m= ailing list -- [email protected]</span><br><span>To unsubscribe send an email to= [email protected]</span><br></div></blockquote></div></body></html>= --Apple-Mail-4A7930F5-7BCE-4192-B6F2-B06BD0CAF91B-- --===============8427463159624660192== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KcGltIG1haWxp bmcgbGlzdCAtLSBwaW1AaWV0Zi5vcmcKVG8gdW5zdWJzY3JpYmUgc2VuZCBhbiBlbWFpbCB0byBw aW0tbGVhdmVAaWV0Zi5vcmcK --===============8427463159624660192==--