Situational Awareness for Network Migrations
At IP Architechs we perform a lot of network migrations and it is no secret network migrations/ maintenance windows can be one of the most nerve-racking things for engineers, managers, and business leaders for a variety of reasons.
For the engineers the uncertainty might be caused by fear of failure, not being able to predict the outcome due to complexity, rushed on preparation to meet a deadline, or a litany of other reasons.
For managers and business leaders it might be more along the lines of; what happens if this goes wrong, how will this effect my bottom line, are there going to be 1000s of trouble tickets come 8/9am when everyone hits the office, and so on.
The Preparation
We’re going to look at this at the perspective of the engineer throughout. The prep work is probably one of the most important pieces of success. This is where you do many things including but not limited to:
- building and testing the configuration to be implemented
- making a rollback plan — this might be something as simple as move a cable and shut an interface or a multistep/multi-device plan
- know the situation surrounding the window
Lets explore understanding the situation Continue reading
Programming The Network With Intel NEX Chief Nick McKeown
It would be very difficult indeed to find a better general manager for Intel’s newly constituted Network and Edge Group networking business than Nick McKeown, and Pat Gelsinger, the chief executive officer charged with turning around Intel’s foundries and its chip design business, is lucky that Intel was on an acquisitive bend in the wake of its rumored failed attempt to buy Mellanox and Nvidia’s successful purchase of Mellanox a few months later. …
Programming The Network With Intel NEX Chief Nick McKeown was written by Timothy Prickett Morgan at The Next Platform.
s impossible to be able to deliver those speeds to everybody across an entire county.Crawler Hints supports Microsoft’s IndexNow in helping users find new content
The web is constantly changing. Whether it’s news or updates to your social feed, it’s a constant flow of information. As a user, that’s great. But have you ever stopped to think how search engines deal with all the change?
It turns out, they “index” the web on a regular basis — sending bots out, to constantly crawl webpages, looking for changes. Today, bot traffic accounts for about 30% of total traffic on the Internet, and given how foundational search is to using the Internet, it should come as no surprise that search engine bots make up a large proportion of that what might come as a surprise is how inefficient the model is, though: we estimate that over 50% of crawler traffic is wasted effort.
This has a huge impact. There’s all the additional capacity that owners of websites need to bake into their site to absorb the bots crawling all over it. There’s the transmission of the data. There’s the CPU cost of running the bots. And when you’re running at the scale of the Internet, all of this has a pretty big environmental footprint.
Part of the problem, though, is nobody had really stopped to ask: maybe Continue reading
Authority and Responsibility
Congratulations on your promotion! You’re now a manager or leader for your team. You now have to make sure everyone is getting their things done. That also means lots of reports and meetings with your manager about what’s happening and all the new rules that have to be followed in the future. Doesn’t this all sound nice?
In truth we all want to be able to help out as much as possible. Sometimes that means putting in extra work. For many it also means being promoted to a position of responsibility in a company leading a team or group of teams. That means you will have some new responsibilities and also some new authority. But what’s the difference? And why is one more foundational than the other?
Respect My Authority
Authority is “power to influence or command thought, opinion, or behavior”. It means you have the ability to tell people what to do. You give orders and they are followed. You tell your team the direction that you want things to go and it happens. If it doesn’t there are consequences. When you tell someone they are the boss this is what they usually picture.
Responsibility is “the quality of Continue reading
Heavy Networking 642: 10Mbps Single Pair Ethernet
Single pair Ethernet. That’s right. Ethernet over a single twisted pair, rather than the four you’re used to. Or two if you’ve got a little gray in your beard. Now, single pair Ethernet isn’t fast in the way we network engineers would normally think of fast. SPE runs at 10 megabits per second. But in the use cases SPE was designed for, 10Mbps is very fast indeed. To tell us all about single pair Ethernet is Peter Jones. Although Peter wears many hats in the networking industry, today he comes to the microphone as the chairperson of the Ethernet Alliance.Heavy Networking 642: 10Mbps Single Pair Ethernet
Single pair Ethernet. That’s right. Ethernet over a single twisted pair, rather than the four you’re used to. Or two if you’ve got a little gray in your beard. Now, single pair Ethernet isn’t fast in the way we network engineers would normally think of fast. SPE runs at 10 megabits per second. But in the use cases SPE was designed for, 10Mbps is very fast indeed. To tell us all about single pair Ethernet is Peter Jones. Although Peter wears many hats in the networking industry, today he comes to the microphone as the chairperson of the Ethernet Alliance.
The post Heavy Networking 642: 10Mbps Single Pair Ethernet appeared first on Packet Pushers.
Technology Short Take 158
Welcome to Technology Short Take #158! What do I have in store for you this time around? Well, you’ll have to read the whole article to find out for sure, but I have links to articles on…well, lots of different topics! DNS, BGP, hardware-based security, Kubernetes, Linux—they’re all in here. Hopefully I’ve managed to find something useful for someone.
Networking
- Shank Mohan explains some details on NSX-T Tier-1 Service Router (SR) placement.
- See this page for instructions on how to enable BBR on Debian 10.
- Christopher Vierheller supplies a concise guide on how to add custom symbols to EVE-NG.
- Alex Neihaus provides readers with a walkthrough for adding BGP routes to AWS security groups.
- Via Russ White, RFC 9199 was drawn to my attention (“Considerations for Large Authoritative DNS Server Operators”).
Servers/Hardware
- Gabriel Sieben ruminates on the potential dangers of Microsoft Pluton, a new security chip co-developed by Microsoft and AMD.
Security
- Jason Avery walks readers through using Atomic Red Team to test Falco rules in Kubernetes environments. This is pretty neat.
- Also on the Sysdig blog, Miguel Hernández recaps his KubeCon EU 2022 talk on how attackers used an exposed Prometheus server to exploit Kubernetes clusters.
- Kat Continue reading
Networking in the Service Economy
Expect to see a new type of connectivity emerge that is better tuned to the needs and requirements of today’s as-a-Service economy.Nothing Cloudy About The Outlook For Infrastructure Spending
Here is a question for you: If hypervisors are going to eventually be offloaded to a DPU attached to the server node by a PCI-Express link, is the server considered bare metal or virtualized? …
Nothing Cloudy About The Outlook For Infrastructure Spending was written by Timothy Prickett Morgan at The Next Platform.