A tool to find out if BGP is lying to you
APNIC has a bog article on detecting “bgp lies”. https://blog.apnic.net/2021/05/24/a-tool-to-detect-bgp-lies/Do you ever wonder whether you can really trust other networks, such as your provider(s) and peers? More precisely, wouldn’t you like to be able to tell if the traffic you send always …
Poor phone call quality fix
Our friend David over at Penny Tone has an article out on call Quality. https://www.linkedin.com/pulse/stop-suffering-from-poor-phone-call-audio-fix-david-attias/
Some fiber testing and verification
Testing a fiber cross-connect at a data center. #packetsdownrange
Featured Udemy Course: Networking
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Interconnection Quarterly
https://static1.squarespace.com/static/5e013aba1c79407e08cf53bc/t/60610a0a5517c019d36a2083/1616972299607/Foundations+-+Interconnection+Quarterly+%284Q2020%29+.pdf From Christian Koch from Foundations I am excited to reveal that my quarterly interconnection update hastransformed into the Interconnection Quarterly, a hand-tailored,independent briefing on the interconnection industry. Right now, my plansare to publish the Interconnection Quarterly shortly after the …
Bind 9.4 helpful notes
So recently I was spinning up some new authoritative names servers. I have stuck with bind for authoritative for years because the format of the files and queries is THE standard for DNS zones. IMHO, there are some better resolvers …
How Comcast breaks the IPV6 Internet
So it used to be I received a /56 IPv6 prefix and then my router picked a /64 for my lan. Then it turned into a /60. Now I get a /64 and my router has to turn that into …
Denial of Service and the xISP Part 1
Most service providers have been the victim of a Denial of Service (DoS) attack at one point or another. Sometimes you may not realize you are under an attack. A few months ago, I posted a simple screenshot at https://blog.j2sw.com/networking/anatomy-of-a-ddos/ of what …
Proper BGP DENY-ALL filter for mikrotik
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