Longest Network Connection in the Universe?

Longest Network Connection in the Universe? Every once in a while I go onto the Deep Space Network site to check on Voyager 1 and 2, and just to see what’s going on in general. Currently the round-trip time to V1 is about 1.69 days with a data rate of 150 bits/second, although I’ve seen it as low as 6 bits/sec. V2 is a bit closer at a mere 11 billion miles or so. It’s amazing to me that the entire space craft runs on 4 Watts. V1 and 2…

Read More

How Verizon and a BGP Optimizer Knocked Large Parts of the Internet Offline Today — Cloudflare

How Verizon and a BGP Optimizer Knocked Large Parts of the Internet Offline Today — Cloudflare Cloudflare posted a name-and-shame about Verizon and the outages earlier today: https://blog.cloudflare.com/how-verizon-and-a-bgp-optimizer-knocked-large-parts-of-the-internet-offline-today/ submitted by /u/Apoxual to r/networking [link] [comments] top scoring links : multi

Read More

hyperglass: a python looking glass for making the internet suck less

hyperglass: a python looking glass for making the internet suck less Once upon a time, I was helping a customer troubleshoot some connectivity issues to my employer’s cloud services. I was logging into looking glass servers for every tier 1 carrier in the path and getting frustrated that the little tier 2/3 shops didn’t have their own looking glasses for me to use, forcing me to make educated guesses about how traffic being routed within their network. Then I started to look inward, and thought to myself, “well, why don’t…

Read More

Google Cloud Networking Incident #19009 (Sunday, June 2 2019) – Post-mortem

Google Cloud Networking Incident #19009 (Sunday, June 2 2019) – Post-mortem https://status.cloud.google.com/incident/cloud-networking/19009 ​ Google just released their RCA/post-mortem of the events that impacted several US and Americas GCP regions as well as other Google services on Sunday, June 2nd 2019. I found it to be a highly interesting read. Quoting below to save folks a click: ​ ISSUE SUMMARY On Sunday 2 June, 2019, Google Cloud projects running services in multiple US regions experienced elevated packet loss as a result of network congestion for a duration of between 3 hours…

Read More

Is it normal to leave work brain dead everyday when in IT?

Is it normal to leave work brain dead everyday when in IT? Network Admin here. Kind of a silly post, kinda not. Ive been working in IT, mostly Networking, for 4 years now. It’s not hard to notice that it’s a very mentally taxing field. As of probably the last year maybe year and a half, I feel like I leave work everyday just completely mentally drained. I can’t focus on much after work, and by the time I get relaxed on the weekend, it’s Monday again. I don’t feel…

Read More

Python for Network Engineers free course starts Tuesday Feb 26

Python for Network Engineers free course starts Tuesday Feb 26 Periodically, I run a free course on Python for Network Engineers. The next course starts this Tuesday. This course is aimed at Network Engineers that want to learn Python. It covers Python fundamentals, but using exercises and examples that are more relevant to network engineers. That being said the course is definitely oriented towards beginners (from a Python programming perspective).The week-by-week schedule for the course is as follows: Week1 – Why Python, the Python Interpreter Shell, and Strings Week2 –…

Read More

[UPDATE] I shut down my company over thanksgiving to do a network migration and somehow it all worked.

[UPDATE] I shut down my company over thanksgiving to do a network migration and somehow it all worked. I’m baffled as to the how and why, but it’s all back up. Interestingly, when I got to the office at ~8am on Thanksgiving day my first couple hours were spent dealing with a problem of actual tubes instead of metaphorical tubes. Our fizzy water machine had decided to start leaking sometime in the middle of the night. If I hadn’t been doing this work today, no one would have see this…

Read More

China Telecom leaking routes again

China Telecom leaking routes again I’ve been having issues with my home internet connection all day (I work from home), and upon discovering that I couldn’t reach my company’s marketing site, it would appear that China Telecom is leaking routes again. We host the site in GCP and my traffic from North Carolina on Spectrum routes through Europe to a China Telecom host before the traceroute dies. Anyone else seen this? We’ve also had customers on Verizon write in saying they’re seeing similar issues. ​ Edit: ThousandEyes verifying — https://twitter.com/thousandeyes/status/1062102171506765825…

Read More