[rtgwg] Re: [Mcast4AI] Re: [Bier] Invitation to th e "AI Network Multicast" side meeting at IETF 126
Adrian Farrel <[email protected]> Fri, 17 Jul 2026 13:24:30 +0100 (BST)
| Newsgroups | gmane.ietf.rtgwg,gmane.ietf.pim |
|---|---|
| Message-ID | <[email protected]> |
--===============5461069039695222931== Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable <!doctype html> <html> <head> <meta charset=3D"UTF-8"> </head> <body> <div>I think the Secretariat automagically record the side meeting webex = sessions, 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 n= ot 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"mail= to:[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;">De= ar 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;">&n= bsp;</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&= nbsp;AI Network Multicast on <strong>Tuesday, July 21, = 9:15-10:45</strong> (Europe/Vienna), in <strong>room Grand Klimt Hall = 3</strong>. If you are interested in AIDC or network layer multicast, pleas= e come to the side meeting to discuss. If you are remote participant, pleas= e access the meeting via the link: <a href=3D"https://ietf.webex.com/meet/s= idemeetings2" target=3D"_blank" rel=3D"noopener">https://ietf.webex.com/mee= t/sidemeetings2</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 previou= s side meeting discussions and will dive deeper into AI-specific multicast = use cases and requirements, including MoE token dispatch, while conducting = preliminary technical analyses of potential solutions such as BIER enhancem= ents and new protocol designs, with emphasis on reliability, scalability, a= nd quantitative 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 agend= a 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 & Revie= w 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 S= tatement 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> Multicas= t is a promising technique for enhancing the efficiency of point-to-multipo= int data transmission during LLM training and inference in AI Data Centers = (AIDCs). However, AIDCs demand bidirectional interaction, lossless reliabil= ity, microsecond scale dynamics, sparse groups, and simple control/data pla= nes. This 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 Structura= lly? Benchmarking via the lens of Data Structures, with possible benefit fr= om Multicast ( 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= language models (LLMs) are increasingly deployed on complex tasks that dem= and multi-step decision-making, evaluating their algorithmic reasoning capa= bilities becomes critical. This talk introduces DSR-Bench, a diagnostic ben= chmark grounded in data structures, designed to assess structural reasoning= =E2=80=94the ability to perceive and manipulate relational patterns such as= order, hierarchy, and connectivity, including the benchmark design, the ev= aluation methodology, and key empirical findings. The talk concludes with a= brief discussion of potential implications for AI data-center networks, ra= ising the question of whether efficient multicast communication could benef= it long-context inference, inference-time search, and distributed model exe= cution.<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= : medium;"><strong>3.In-Network Computing on Switches (IFEC): Remodeling Mu= lticast 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 innovative collaborative computing paradigm named IFEC (In Fabric Exten= ded-Computation). Its core objective is to address the worsening cross-xPU = communication bottlenecks in large-scale AI training and inference, driven = by rising model parallelism and the widespread adoption of architectures su= ch 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 = Scale-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= rapid development of AI services, optimizing AI cluster performance has be= come increasingly important. Notably, some AI service scenarios may exhibit= multicast-like communication patterns (e.g., MOE dispatch).Traditional net= work multicast relies on single-direction forwarding, which conflicts with = key AI service requirements: interactivity, reliability, dynamics, and spar= sity. These mismatches introduce significant challenges in scale-out networ= k. Interestingly, when AI services operate within a scale-up network, these= challenges become more manageable. Consequently, we propose first focusing= on leveraging multicast to enhance scale-up AI service performance, before= extending the solution 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</st= rong><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; padd= ing: 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 s= ee you 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 f= eel free to contact us: <a href=3D"mailto:[email protected]" target= =3D"_blank" rel=3D"noopener">[email protected]</a>, <a href=3D"mail= to:[email protected]" target=3D"_blank" rel=3D"noopener">mmcbride7@gmail.= com</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;">Be= st 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;">Yi= song <br></span> <br> <br> <br> <br> <span style=3D"font-size: 16px; font-family: =E5=AE=8B=E4=BD=93;">&nb= sp;</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]"= target=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> </body> </html> --===============5461069039695222931== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KcnRnd2cgbWFp bGluZyBsaXN0IC0tIHJ0Z3dnQGlldGYub3JnClRvIHVuc3Vic2NyaWJlIHNlbmQgYW4gZW1haWwg dG8gcnRnd2ctbGVhdmVAaWV0Zi5vcmcK --===============5461069039695222931==--