How the Internet Really Works, Part 1
I’m a bit late posting this … but this Thursday (an odd day for me) I’m running How the Internet Really Works, Part 1, over at Safari Books Online. From the page:
You can register for the training at the link above. I’ll be giving part 2 of How the Internet Really Works next month.
Tracking Internet Shutdowns
Internet shutdowns harm societies, economies, and the global Internet infrastructure – that’s why we’re tracking disruptions on the Internet Society Pulse platform. There are thousands of disruptions to Internet access every day all over the world, but not all of them are the result of deliberate shutdowns. Lengthy outages are usually the result of technical errors, routing misconfigurations, or infrastructure failures. […]
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The Effectiveness of AS Path Prepending (1)
Just about everyone prepends AS’ to shift inbound traffic from one provider to another—but does this really work? First, a short review on prepending, and then a look at some recent research in this area.
What is prepending meant to do?
Looking at this network diagram, the idea is for AS6500 (each router is in its own AS) to steer traffic through AS65001, rather than AS65002, for 100::/64. The most common method to trying to accomplish this is AS65000 can prepend its own AS number on the AS Path Multiple times. Increasing the length of the AS Path will, in theory, cause a route to be less preferred.
In this case, suppose AS65000 prepends its own AS number on the AS Path once before advertising the route towards AS65001, and not towards AS65002. Assuming there is no link between AS65001 and AS65002, what would we expect to happen? What we would expect is AS65001 will receive one route towards 100::/64 with an AS Path of 2 and use this route. AS65002 will, likewise, receive one route towards 100::/64 with an AS Path of 1 and use this route.
AS65003, however, will receive two routes towards 100::/64, one with an AS Continue reading
Network Break 332: Juniper Teases SASE Offering; IBM Gets Small With 2nm Chip
Today's Network Break covers IBM's new 2nm chip process, Juniper's first step toward a SASE offering, whether secondary markets for network gear might be an option for companies dealing with supply chain shortages, and more tech news.Network Break 332: Juniper Teases SASE Offering; IBM Gets Small With 2nm Chip
Today's Network Break covers IBM's new 2nm chip process, Juniper's first step toward a SASE offering, whether secondary markets for network gear might be an option for companies dealing with supply chain shortages, and more tech news.
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The Week in Internet News: Many U.S. Residents Support Community Broadband
From the community: A new poll from Morning Consult finds that more than half of U.S. residents trust local governments to provide broadband services, and just 14 percent believe local governments should be prohibited from providing broadband. Currently, 18 states limit or outright prohibit local governments from providing their own broadband. In those states, “these […]
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Response: There’s No Recipe for Success
Minh Ha left a lengthy comment to my There’s No Recipe for Success blog post, adding an interesting perspective of someone who had to work really hard to overcome coming from a third-world country.
Ivan, I happened to read “Deep Work: Rules for Focused Success in a Distracted World” recently so I can attest that it does provide some valuable advices on how to do things well. Some of the overarching themes are stay focused and cut off unnecessary noise/drain the shallow. The author also suggests removing your social media account if you can’t see how it add values to your work/business, as social media can create attention disorder, seen in many young kids these days.
How to Survive a Toxic Workplace
If you wake up every morning stressed about going to work, chances are that you are working in a toxic environment. There are many signs of a toxic workplace including having rude coworkers, but things that you may be experiencing include depression, loss of focus, reduction in confidence, and even constant headaches.
The psychological explanation behind feeling depressed due to a toxic workplace is related to the fight or flight response of the body. When you put yourself under constantly stressful conditions, your body produces cortisol, testosterone, and norepinephrine in unhealthy quantities. As a result, you may find yourself wanting to burst into tears by 2pm at work.
While working in a toxic environment can be difficult, it is certainly not impossible. Until you find a suitable alternative for yourself, there are many ways to survive a toxic workplace – regardless of how bad the situation may be.
1. Find the Good in the Bad
The biggest reason why your workplace is toxic is probably due to the coworkers. You may find yourself surrounded by selfish, judgmental, and manipulative individuals that you do not resonate with. But while a majority of your coworkers may be toxic, there Continue reading
Transport vs Network
According to the OSI Reference Model for network protocols it should not matter in the slightest what value you put in the IP protocol field in IP packet headers. It’s really none of the network's business! but in today’s public Internet it appears to matter a lot that the transport protocol header is visible to the network. Why?Worth Reading: When Stretching Layer Two, Separate Your Fate
Ethan Banks wrote the best one-line description of the crazy stuff we have to deal with in his When Stretching Layer Two, Separate Your Fate blog post:
No application should be tightly coupled to an IP address. This common issue should really be solved by application architects rebuilding the app properly instead of continuing like it’s 1999 while screaming YOLO.
Not that his (or my) take on indisputable facts would change anything… At least we can still enjoy a good rant ;)
Worth Reading: My Secret Startup Past
If you ever get a feeling the grass is greener on the other (startup) side, read My Secret Startup Past by Amy Hoy, and if you think about starting your business, read all the other stuff she wrote. I wish I knew of her when I was starting ipSpace.net a decade ago.
Heavy Networking 577: A Customer View On Cloud-Delivered Security For Streamlining Distributed Workforces (Sponsored)
Today's Heavy Networking gets into cloud-delivered security for user access. We're sponsored by Palo Alto Networks, and we'll talk about its Prisma Access service with a customer: Josh Dye, SVP at Jefferies Group. We discuss how Josh pivoted to Prisma Access during the pandemic, how he meets strict security and regulatory requirements for financial services, and more.
The post Heavy Networking 577: A Customer View On Cloud-Delivered Security For Streamlining Distributed Workforces (Sponsored) appeared first on Packet Pushers.