How a GPU Actually Connects to the Network

This article discusses essential aspects of data center networking for AI, emphasizing the unique communication dynamics between GPUs. It highlights the importance of PCIe bus architecture, NUMA locality, and NVLink technology in optimizing performance. The design strategy of one NIC per GPU and the use of SmartNICs in multi-tenant environments are also explored.

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Using Syslog in netlab Labs

netlab release 26.09 added support for Syslog clients and servers. We implemented the clients on numerous platforms; the only Syslog server implementation is the dnsmasq container.

Adding Syslog to a netlab lab is (almost) trivial:

  • You have to (re)build the dnsmasq container with the netlab clab build dnsmasq command to add rsyslogd to the container image
  • When you add a dnsmasq node to a lab, it automatically starts a Syslog server
  • The Syslog client is enabled on other nodes (or globally) with the services.syslog.server setting.

Film Fantasi Akar Pohon Planet: Hiburan Kota dalam Akar Raksasa

Dalam perkembangan dunia hiburan saat ini, film fantasi dengan konsep unik dan imajinatif semakin diminati oleh penonton global. Salah satu tema yang sedang menjadi perbincangan hangat dan menarik perhatian adalah penggambaran “akar pohon planet” yang membentuk sebuah kota berdiameter ribuan kilometer. Film fantasi dengan latar semacam ini tidak hanya menawarkan visual spektakuler, tetapi juga menantang imajinasi dan pemikiran tentang alam semesta, kehidupan, serta hubungan manusia dengan alam semesta di masa depan.

Konsep Akar Pohon Planet dalam Dunia Film Fantasi

Akar pohon planet menjadi fokus utama dalam sejumlah film fantasi terbaru yang dirilis dan sedang dalam tahap produksi saat ini. Ide dasar yang menginspirasi konsep ini adalah keberadaan sebuah planet yang pohonnya tidak biasa, dengan sistem akar raksasa yang membentang luas hingga ribuan kilometer. Sistem akar tersebut bukan hanya menempel ke tanah, melainkan membentuk ruang hidup yang sangat luas, memungkinkan kota atau bahkan peradaban tercipta di dalamnya.

Berbeda dengan konsep kota futuristik tradisional yang berdiri di atas permukaan atau di bawah tanah, kota dalam akar pohon planet menggabungkan unsur alam dan arsitektur fiksi ilmiah. Kota-kota ini berkembang di dalam akar raksasa yang menyediakan segala kebutuhan ekologis sekaligus menjadi benteng alami dari ancaman luar. Dalam konteks hiburan saat ini, film Continue reading

Negara Internasional Kembangkan Mega-Proyek Pemulihan Pegunungan Terbakar dengan Drone

Pemulihan lingkungan, khususnya di daerah pegunungan terbakar, menjadi fokus utama sejumlah negara di dunia saat ini. Fenomena kebakaran hutan dan pegunungan yang meningkat tajam menyebabkan kerusakan ekosistem yang luas, sehingga menggerakkan komunitas internasional untuk mencari solusi inovatif dan efektif. Salah satu teknologi terbaru yang sedang dikembangkan adalah penggunaan drone penebar mikroorganisme sebagai bagian dari mega-proyek pemulihan pegunungan terbakar. Artikel ini mengupas secara menyeluruh perkembangan teknologi tersebut dan negara-negara yang menjadi pelopor dalam implementasinya.

Peran Teknologi Drone dalam Pemulihan Pegunungan Terbakar

Di tengah tantangan besar yang dihadapi akibat kebakaran hutan dan gunung, teknologi drone muncul sebagai solusi revolusioner. Drone penebar mikroorganisme mampu menjangkau area yang sulit diakses manusia secara cepat dan akurat, membawa benih-benih mikroorganisme yang bermanfaat untuk mempercepat proses rehabilitasi tanah dan vegetasi.

Mikroorganisme yang digunakan merupakan hasil rekayasa bioteknologi modern, seperti bakteri dan jamur yang mampu meningkatkan kesuburan tanah, memperbaiki struktur tanah yang rusak, dan mendorong pertumbuhan tanaman secara alami. Dengan metode penebaran yang presisi menggunakan drone, proyek ini menjanjikan efisiensi tinggi dalam memperbaiki ekosistem yang rusak akibat kebakaran.

Negara yang Memimpin Mega-Proyek Pemulihan Pegunungan Terbakar Menggunakan Drone

Beberapa negara dengan ekosistem pegunungan yang rentan terhadap kebakaran telah mengambil langkah strategis dalam mengaplikasikan drone penebar mikroorganisme, di antaranya Continue reading

D2DO314: Backups SaaS – Safety as a Service

Ned and Kyler talk with Jim Jones about data protection, backups, and security in the age of hybrid cloud and AI. They explore the operational challenges of integrating automated AI agents into enterprise workflows, the need for proper permission scoping, immutable backups, and data security posture management (DSPM). AdSpot Sponsor: Gartner The Gartner IT Infrastructure... Read more »

The Clearinghouse For AI Agents Has A Blind Spot

Jamin Ball’s recent piece, “Systems of Record Won the SaaS Era — Clearinghouses Will Win the Agents Era,” is the cleanest articulation I’ve seen of where the durable moat goes next. His argument is simple and, I think, correct: the SaaS era rewarded whoever owned the system of record, and the agent era will reward whoever owns the clearinghouse. This is a new seat that sits between mutually-distrusting agents and decides which one is cleared to act, on what data, with what limits, and can prove what happened after the fact. The lock-in moves from your data to your permissions. The source-of-truth era becomes the source-of-permission era.

 

I agree with all of it. Governance has graduated from a compliance checkbox at the end of the sales cycle to the first question a CIO asks. Once agents act autonomously and eventually spend real money, “is the model good?” stops being interesting now that every model is good enough and “can I see what every agent did, set policy on what it can touch, and prove it to my auditors?” becomes the whole conversation. That seat is strategic real estate. Whoever holds it is hard to dislodge.

 

Continue reading

The OSPF MTU Mismatch Saga

The OSPF is stuck in database exchange state symptom is probably familiar to every networking engineer who ever had to pass a certification exam. It’s caused by the MTU mismatch between adjacent OSPF routers.

The recent (unexpected) trip into the how crazy is it to declare your interface MTU to be zero wonderland uncovered way more than I ever wanted to know about this arcane topic. Here are a few highlights (thanks a million to Aleksey Popov for researching this topic and posting information here, here, and here).

HW089: Spectrum Analysis and Vibe Coding

Keith sits down with Kjetil Hansen to explore spectrum analysis and vibe coding for wireless networking tools. They also discuss building custom tools, using AI for 3D network modeling, and how Kjetil uses OpenIntent in his projects. Episode Links: Kjetil Hansen’s Website Kjetil Hansen on YouTube

PP127: Network Configuration and State Visibility at Scale with Unimus (Sponsored)

Today’s Packet Protector is a sponsored show that sits very nicely at the networking/security intersection. Our sponsor is NetCore, which makes the Unimus network configuration management software. Unimus supports network automation, configuration management and backup, change management, and auditing and compliance. We dive into how Unimus provides visibility into both the running config and the... Read more »

Tech Bytes: Why Beaver Excavating Tapped Firezone for WireGuard-Powered VPN (Sponsored)

Today on the Tech Bytes podcast we talk VPNs. Our sponsor is Firezone, which offers a secure remote access solution built on Wireguard. But instead of just hearing from Firezone, we talk with a customer. Our guest is Daniel Caruso, IT Network and Systems Administrator at Beaver Excavating, a construction firm headquartered in Canton, OH.... Read more »

NB592: AWS Recommends UAE Migration; FCC Wants More Spectrum for Satellite Broadband

Take a Network Break! We start with listener follow-up on Arista’s vulnerability reporting, and Cisco ISE takes center stage for our Red Alert. Then we dive into EVA Networks, a startup touting ephemeral network connectivity to minimize risks of persistent network access, why AWS is recommending customers relocate workloads away from its data centers in... Read more »

BGP EVPN in SONiC – Part I: L2VNI for Inter-Switch VLAN Extension

 

Introduction

 

The previous chapter explained how to build an IPv6-only multi-ASN Clos fabric where IPv4 prefixes can be advertised with IPv6 link-local next hops.

In this chapter, we extend VLAN 10 between Leaf-101 and Leaf-102 using BGP EVPN as the control plane and VXLAN as the data plane.

Figure 7-1 shows the main building blocks required to provide this functionality. The IP underlay, where leaf and spine switches use IPv6 link-local addresses for eBGP peering, has already been configured in the previous chapter. Loopback0 is used only as the BGP Router ID and is not advertised to any peer.

The IP address of Loopback1, in turn, is used as the VXLAN Tunnel Endpoint (VTEP) address. Each switch therefore advertises its Loopback1 IP address using BGP IPv4 Unicast so that the VTEP addresses are reachable across the fabric. This address identifies the local VTEP in the EVPN control plane and is used as the BGP next hop for EVPN routes. A VXLAN packet sent to a remote VTEP uses the remote VTEP address as the destination address in the outer IP header.

Each extended VLAN is mapped to an L2VNI (Layer-2 VXLAN Network Identifier). In Figure 7-1, VLAN 10 Continue reading