Ned Bellavance continues his KubeCon conversations with Akamai about cloud-native design and its impact on cloud architecture, Acorn Labs about building a cloud platform, F5 about the networking side of platform engineering, and the startup Chkk about platform engineering and managing Kubernetes.
The post D2C221: KubeConversations Part 2 – Building Cloud Platforms appeared first on Packet Pushers.
A friend of mine sent me an interesting question along these lines:
We all know that in OSPF, the router ID is any 32-bit number, not necessarily an IP address of an interface. The only requirement is that it must be unique throughout the OSPF domain. However, I’ve always wondered what the role of BGP router ID is. RFC 4271 says it should be set to an IP address assigned to that BGP speaker, but where do we use it?
Also, he observed somewhat confusing behavior in the wild:
Take two routers and configure the same BGP identifier on both. Cisco IOS will not establish a session, while IOS XR and Junos will.
I decided to take the challenge and dug deep into the bowels of RFC 4271 and RFC 6286. Here’s what I brought back from that rabbit hole:
This post is also available in Deutsch.
Today we’re excited to announce that we’ve added the Mistral-7B-v0.1-instruct to Workers AI. Mistral 7B is a 7.3 billion parameter language model with a number of unique advantages. With some help from the founders of Mistral AI, we’ll look at some of the highlights of the Mistral 7B model, and use the opportunity to dive deeper into “attention” and its variations such as multi-query attention and grouped-query attention.
Mistral 7B is a 7.3 billion parameter model that puts up impressive numbers on benchmarks. The model:
Here’s an example of using streaming with the REST API:
curl -X POST \
“https://api.cloudflare.com/client/v4/accounts/{account-id}/ai/run/@cf/mistral/mistral-7b-instruct-v0.1” \
-H “Authorization: Bearer {api-token}” \
-H “Content-Type:application/json” \
-d '{ “prompt”: “What is grouped query attention”, “stream”: true }'
API Response: { response: “Grouped query attention is a technique used in natural language processing (NLP) and machine learning Continue readingAfter checking what routers do when they receive a TCP SYN packet from an unknown source, I couldn’t resist checking how they cope with TCP SYN packets with too-low TTL when using TTL security, formally known as The Generalized TTL Security Mechanism (GTSM) defined in RFC 5082.
TL&DR: Not bad: most devices I managed to test did a decent job.
If you are in the traditional HPC community, it is not hard to be of two minds about the rise of AI and the mainstreaming of generative AI. …
The post Trying To Do More Real HPC In An Increasingly AI World first appeared on The Next Platform.
Trying To Do More Real HPC In An Increasingly AI World was written by Timothy Prickett Morgan at The Next Platform.
China demonstrates the strength of its home-grown technology industry by announcing a 1.2Tbit Internet backbone that stretches 3,000 kilometers, Fortinet warns of a 9.8 severity bug in its SIEM product, and we continue our ongoing discussion about the precarious role of the CISO, plus more tech news, in this episode of the Network Break podcast.
The post NB456: China Flexes Tech Muscles With 1.2Tb Backbone; Will CISOs Mitigate Risk Or Liability? appeared first on Packet Pushers.
2024 is a year of elections, with more than 70 elections scheduled in 40 countries around the world. One of the key pillars of democracy is trust. To that end, ensuring that the Internet is trusted, secure, reliable, and accessible for the public and those working in the election space is critical to any free and fair election.
Cloudflare has considerable experience in gearing up for elections and identifying how our cyber security tools can be used to help vulnerable groups in the election space. In December 2022, we expanded our product set to include Zero Trust products to assist these groups against new and emerging threats. Over the last few years, we’ve reported on our work in protecting a range of election entities and as we prepare for the 2024 elections, we want to provide insight into attack trends we’ve seen against these groups to understand what to expect in the next year.
For this blog post, we identified cyber attack trends for a variety of groups in the elections space based in the United States, as many of our Cloudflare Impact projects provide services to these groups. These include U.S. state and local government websites protected under Continue reading
A while ago, I published a blog post describing how to establish a LAN/WAN L3 boundary in VXLAN/EVPN networks using Cisco NX-OS. At that time, I promised similar information for Arista EOS. Here it is, coming straight from Massimo Magnani. The useful part of what follows is his; all errors were introduced during my editing process.
In the cases I have dealt with so far, implementing the LAN-WAN boundary has the main benefit of limiting the churn blast radius to the local domain, trying to impact the remote ones as little as possible. To achieve that, we decided to go for a hierarchical solution where you create two domains, local (default) and remote, and maintain them as separate as possible.
Bad queries tend to propagate to the root zone due to the hierarchical nature of DNS, so studying traffic at a root server can provide key insights into overall network usage.
This blog covers an interesting case of suspected abuse in a gTLD registry between February and April 2023.
Gartner has raised the specter of departments outside of tech running their own IT Continue reading
If you have a transmit capable SDR, you may have heard that you need to filter its output, before transmitting to the world. Certainly before amplifying the signal.
I have a TinySA Ultra spectrum analyzer, and will here show you some screenshots about just how true that is.
I tested this with my USRP B200, transmitting a pure carrier around 145MHz and 435MHz.
Oh, and a word of caution: If you want to replicate this, make sure to add an inline attenuator, to not damage your spectrum analyzer. I had a cheap 40dB one, but the values in the graphs have been adjusted to show the real signal strength, as if I hadn’t.
Reducing the output gain did not meaningfully fix the problem. The best I saw from using half output gain was to make the strongest harmonic 9dB less than the fundamental. That’s way too strong.
I added a cheap band pass filter (FBP-144), which made Continue reading
I’ve been coding more on my rust SDR framework, and want to improve my ability to send/receive data packets efficiently and reliably.
There are two main ways I use learn to do this better: designing a new protocol, and making the best implementation possible for an existing one. This post is about refining the latter.
First a detour, or background.
AX.25 is the standard amateur radio data protocol. It’s mostly an OSI layer 2-4 protocol, mashing the layers together into one. Contrast this with IP, which just encapsulates the next layer.
Layer 3 (IP stack equivalent: IP itself) consists of the ability to
add, in addition to source and destination, a variable number of
intermediate repeaters. This allows limited source routing. In APRS
the repeaters are usually not named, but instead uses “virtual” hops
like WIDE1-1.
Layer 4 (IP stack equivalent: TCP and UDP) allows both connected and disconnected communication channels. In my experience connected AX.25 works better over slow simplex radio than TCP. If TCP was ever optimized for high delay low bandwidth, it’s not anymore.
For the physical layer, there are three main “modems”:
300 baud bell 103, used Continue reading
As Moore’s law continues to slow, delivering more powerful HPC and AI clusters means building larger, more power hungry facilities. …
The post Pushing The Limits Of HPC And AI Is Becoming A Sustainability Headache first appeared on The Next Platform.
Pushing The Limits Of HPC And AI Is Becoming A Sustainability Headache was written by Timothy Prickett Morgan at The Next Platform.
Analyst Brad Casemore offers his takes on the rise of zero trust, the influence of geopolitics on IT, what's driving the need for visibility and observability on prem and in the cloud, and whether 5G will ever live up to the hype.
The post HN710: The Future Of Networking With Brad Casemore – Part 2 appeared first on Packet Pushers.
