Jeroen van Bemmel and Stefano Sasso contributed tons of new device features for the netlab release 1.9.5:
Cumulus Linux (NVUE):
Dell saw a sequential slump in server sales its most recent quarter as customers were awaiting access to systems using Nvidia’s “Blackwell” GPUs, and rival Hewlett Packard Enterprise had a similar issue when it turns in its first quarter of fiscal 2025, which ended in early February. …
GPU Transitions, Aggressive Server Pricing Squeeze HPE Profits was written by Timothy Prickett Morgan at The Next Platform.
It’s a bit embarrassing as a Network Engineer that we’ve made it this far into the Docker series without looking into Docker Networking and IP Addresses. So, in this part of the series, let’s take a quick look at the basics of Docker Networking. There’s a lot more to Docker networking than what we’ll cover here, but this should be enough to get most people started. We can always explore advanced topics in future posts.
If you haven’t been following the Docker series and just landed on this post, don’t worry; you can still follow along without any issues. If you’re curious about the previous posts, feel free to check them out below.
Suresh Vina
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Container networking refers to the ability for containers to connect to and communicate with each other or Continue reading
I wrote dozens of posts describing various fundamentals of networking technologies. They were a bit hard to find, so I organized them into subcategories and created a summary page to display them. I hope you like the new format.
CoreWeave, the upstart GPU cluster datacenter operator that was formerly a relatively small cryptocurrency miner based in Roseland, New Jersey has filed its S-1 form with the US Securities and Exchange Commission to do an initial public offering. …
CoreWeave’s 250,000-Strong GPU Fleet Undercuts The Big Clouds was written by Timothy Prickett Morgan at The Next Platform.
The previous blog post in this series discussed how TCP/IP and CLNP reach adjacent nodes and build ARP/ND/ES caches. Now let’s move one step further: how do nodes running IPv4/IPv6 or CLNP discover the first-hop router that could forward their traffic to off-subnet nodes they want to communicate with?
docker run --rm -p 6343:6343/udp sflow/sflowtool -M > sflow.pcapEither compile the latest version of sflowtool or, as shown above, use Docker to run the pre-built sflow/sflowtool image. The -M option outputs whole UDP datagrams received to standard output. In either case, type CNTRL + C to end the capture.
Image – https://www.oracle.com/cloud/cloud-at-customer/dedicated-region/
Note : All opinions and writings are of my own understanding and may not represent latest or historical product development facts, please consult Oracle Documentation and Sales teams for accurate information.
Oracle’s Dedicated Region Cloud@Customer (DRCC) has emerged as a transformative solution for organisations requiring cloud capabilities within their own data centers. Recent advancements in DRCC, particularly those announced in 2024 and 2025, have introduced groundbreaking features that redefine network architecture, scalability, and edge computing. This article delves into the technical nuances of these innovations, focusing on their implications for network engineers tasked with designing, deploying, and managing hybrid and multi-cloud environments.
Oracle’s introduction of Dedicated Region25 marks a significant shift in on-premises cloud deployment. With a 75% smaller physical footprint compared to previous iterations, this configuration starts at three racks and scales incrementally, enabling organizations to deploy cloud infrastructure in constrained spaces while maintaining access to over 150 OCI services. For network engineers, this modularity necessitates a reevaluation of data center design principles.
The reduced footprint simplifies integration into existing network topologies but requires meticulous planning for Continue reading
All presidents of these United States have the bully pulpit from which to lecture the American people and, for the past century, the rest of the world about how the global economy and culture should work. …
Why TSMC Did A $100 Billion Deal With Trump On US Chip Manufacturing was written by Timothy Prickett Morgan at The Next Platform.
The Calico eBPF data plane is your choice if latency is your primary concern. It was very disturbing that some benchmarking brought to our attention that eBPF had higher tail latency than iptables. The 99+% percentiles were higher by as much as a few hundred milliseconds. We did a whole bunch of experiments and we could not crack the nut until we observed that there are some occasional and unexpected TCP reset (RST) packets, but no connections were reset.
We noticed that the RST belongs to a connection that was already completed and finished a while ago. That was strange, but it pointed us in the right direction. We also knew that this happens only if the benchmark uses a LoadBalancer and we have connections going through multiple nodes to the same backend pod. That was enough to get to the root cause, but let’s start at the beginning…
One of the shortcomings of iptables/nftables based networking in Kubernetes is that if an external client connects to your cluster via a NodePort or a LoadBalancer, you may lose its IP address along the way. The reason for this is that the client may connect to Continue reading
When I announced the Stub Networks in Virtual Labs blog post on LinkedIn, I claimed it was the last chapter in the “links in virtual labs” saga. I was wrong; here comes the fourth part of the virtual links trilogy – capturing “on the wire” traffic in virtual networking labs.
While network devices provide traffic capture capabilities (usually tcpdump in disguise generating a .pcap file), it’s often better to capture the traffic outside of the device to see what the root cause of the problems you’re experiencing might be.
Rather than measure the funding rounds and valuations of AI startups building foundation models in US dollars, perhaps we should just convert that right into GPU-hours rented to train models, since this accounts for the vast majority of spending that OpenAI, Anthropic, and a handful of others do in their day to day operations. …
Anthropic Raises 285 Million GPU-Hours Equivalent In Series E Funding was written by Timothy Prickett Morgan at The Next Platform.