#518: How Cisco Links Data Centers: 64x800G at 51.2 Tbps Securely

Big thanks to Cisco for Sponsoring this video. For more information about the topic being discussed follow the following link: https://blogs.cisco.com/news/the-thir... Cisco’s Martin Lund joins David Bombal to unpack how AI-scale networking really works - and why a 51.2 Tbps, 64×800G, post-quantum–ready router matters. We break down scale-up vs scale-out vs scale-across, deep buffers to prevent drops on long-haul links, line-rate IPsec/MACsec, SONiC vs IOS XR, P4 programmability, coherent optics for ~1000 km DCI, and how these pieces enable exabit-class fabrics for AI clusters. What you’ll learn • Why GPUs are useless without massive, reliable interconnects • 51.2 Tbps with 64×800G ports and what that enables for AI training • Deep buffers vs shallow buffers and when each wins • Line-rate encryption today and post-quantum readiness tomorrow • SONiC on Cisco Silicon One, P4, and automation at hyperscale If you found this useful, hit subscribe and share with your favorite network nerd. It’s always the network. // Martin Lund’s SOCIALS // LinkedIn: / martinlundca // David's SOCIAL // Discord: discord.com/invite/usKSyzb Twitter: www.twitter.com/davidbombal Instagram: www.instagram.com/davidbombal LinkedIn: www.linkedin.com/in/davidbombal Facebook: www.facebook.com/davidbombal.co TikTok: tiktok.com/@davidbombal YouTube: / @davidbombal Spotify: open.spotify.com/show/3f6k6gE... SoundCloud: / davidbombal Apple Podcast: podcasts.apple.com/us/podcast... // MY STUFF // https://www.amazon.com/shop/davidbombal // SPONSORS // Interested in sponsoring my videos? Reach out to my team here: [email protected] // MENU // 0:00 - Coming Up 0:54 - Intro 0:59 - Martin's Background 02:15 - Martin's Advice 02:48 - Cisco's Announcement 06:12 - Data Center Scaling 07:02 - Data Centres Scaling Across 11:08 - New Router Speeds 13:24 - Securing the Data Center (Quantum Computing) 17:57 - Are Deep Buffers Efficient? 19:25 - New Protocols 22:50 - Data Center Infrastructure 24:07 - 8804 Router Innovations 25:33 - The Future of Data Centers 27:50 - Conclusion Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel! Disclaimer: This video is for educational purposes only. #cisco #networking #ai