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  • Categories Data Center Networking peering

Businesses want lower latency over speed

  • Post author j2sw
  • Post date February 1, 2021
  • Categories Networking Tips WISP xISP

Denial of Service and the xISP Part 1

  • Post author j2sw
  • Post date December 29, 2020

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 …

  • Categories BGP Equipment Mikrotik

Proper BGP DENY-ALL filter for mikrotik

  • Post author j2sw
  • Post date December 2, 2020

This content is for Patreon subscribers of the j2 blog. Please consider becoming a Patreon subscriber for as little as $1 a month. This helps to provide higher quality content, more podcasts, and other goodies on this blog.To view this …

  • Categories Equipment Networking

Speed validation for compliance on ISP networks

  • Post author j2sw
  • Post date November 26, 2020

Does your ISP network need a way to validate customer speeds? RDOF compliance? State compliance for broadband speeds and latency? as many of you know there are problems with using public speedtest servers to validate customer speeds. J2networks, in conjunction …

  • Categories BGP Cisco Equipment Mikrotik Networking WISP xISP

BGP, a single /24 and two diverse non-connected exit points

  • Post author j2sw
  • Post date November 26, 2020

I am starting to see the following scenario more and more as IPv4 space is hard to get, but isn’t. With ARIN it is still possible to get an IPv4 allotment. Many smaller ISPs qualify for a /24 and can …

  • Categories Equipment Mikrotik Networking Tools WISP

Netbox Mikrotik Ansible Config generator

  • Post author j2sw
  • Post date November 25, 2020

So, due to Covid, weather and everything else I am quite behind on blog updates and such. this is one that kinda fell through the cracks. I meant to get this out much sooner than now. My buddy Schylar Utley …

  • Categories BGP equipment Equipment Gear Mikrotik Networking WISP xISP

Mikrotik Connection tracking and CPU usage

  • Post author j2sw
  • Post date November 20, 2020

This content is for Patreon subscribers of the j2 blog. Please consider becoming a Patreon subscriber for as little as $1 a month. This helps to provide higher quality content, more podcasts, and other goodies on this blog.To view this …

  • Categories Data Center Equipment IPV6 Networking Tools

Preseem now supports IPv6

  • Post author j2sw
  • Post date October 26, 2020

https://docs.preseem.com/changes Features IPv6 Preseem now supports IPv6 for all use cases. This includes the ability to assign subscribers a prefix of arbitrary length. IPv4 with Prefixes of Arbitrary Length Previously Preseem modelled subnet assignments to customers as a number of …

  • Categories BGP Networking

ARIN IRR Walkthrough

  • Post author j2sw
  • Post date October 16, 2020

https://www.arin.net/announcements/20200728/ ARIN Internet Routing Registry walkthrough.

  • Categories Networking

Anatomy of a DDoS

  • Post author j2sw
  • Post date October 14, 2020

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