New Youtube Intro
Loving the music and the graphics
The BrothersWisp Podcast
Finally had some time to contribute to another podcast I am a part of. http://thebrotherswisp.com/index.php/the-brothers-wisp-115-wisp-after-death-unifi-video-eol-rpki-basics/ This week we talk about:WISP Virtual Summit July 28thSave Dave’s brainRIP Ubiquiti Unifi Video – EOL 1/1/2021zwift.comCloudflare DNS outageDavid – Arduino, PHP programming, cycling and weight loss, new kid,Wilson’s RPKIMike got some new hardware; a stent!I’m done with my sales … Read more
WISP Whitepaper
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.This content is available exclusively to members of Justin’s Patreon at “Any patron” or higher tier, or having … Read more
A Longitudinal View of Netflix
This came across the NANOG mail list. A Longitudinal View of Netflix: Content Delivery over IPv6 and Content Cache Deployments paper: https://bit.ly/2toOGWPslides: https://bit.ly/2ZoEpapvideo: https://vimeo.com/437111302 Some highlights Caches reachable within 6 IP hops and 20 ms-IP path lengths shorter by 40–50%-Latency lower by 64%-Throughput higher by factor of three-Latency benefits more pronounced over IPv4 compared with … Read more
Network troubleshooting tools
Recently, there was a thread on the NANOG list asking what were somne favorite network troubleshooting tools. I have taken many of these tools and created the following list. http://ping.pe/Simple pingport and dig commands https://mtr.sh/BGP Looking glass https://perfops.net/mtr-from-worldTraceroute from various hosts on the net http://www.traceroute6.net/IPV6 tools (ping,traceroute,etc) https://dnsviz.net/Carious DNS tools http://irrexplorer.nlnog.net/Routing Registry object explorer https://mxtoolbox.com/DNS … Read more
Podcast: Dead technologies for service providers
Podcast: Play in new window | Download (Duration: 6:08 — 8.0MB)
I put together a quick 5-minute podcast talking about two dead technologies for service providers. What is on your list of things no longer relevant or used? #j2podcast #packetsdownrange #routethelight
ISPs and vacation..yes you can get away
Let’s face it, if you are an owner, sysadmin, network admin, or whatever in a small to medium Internet Service Provider vacations can be a troublesome thing to accomplish. Getting away for a conference or training can be a huge deal as well. In this post, I want to help you layout some steps to … Read more
WISPs: IPv6 is the answer to some of your issues
Many Wireless Internet Service Providers (WISPs), especially newer startups, struggle with nat issues and having enough public Ip addresses to go around. Invariably, you start running into double nat issues pretty quickly. Then you get the dreaded gamer call: Many times they don’t know why they are even calling. They just know the magic box … Read more
Mikrotik 6.47.1 released
Lots of things here. Some noteable things What’s new in 6.47.1 (2020-Jul-08 12:34): *) crs3xx – fixed HW offloading for netPower 15FR and netPower 16P devices (introduced in v6.47);*) crs3xx – fixed increased CPU temperature for CRS354-48G-4S+2Q+ device (introduced in v6.47);*) crs3xx – improved Ethernet port group traffic forwarding for CRS354 devices;*) dhcpv6-server – disallow … Read more
Sponsored Post: Ritalia Funding
As you may already know, we have been exhibitors at Wispa shows for almost 9 years. We are a technology financing source for the industry and work with many well known vendors such as Streakwave, ISP Supplies, Winncom, WavOnline, CTI, among others. We have implemented some new financing programs for you in order to meet the … Read more
Internet Routing Registry Resources by j2sw
What is a routing registry?From Wikipedia https://en.wikipedia.org/wiki/Internet_Routing_RegistryThe Internet routing registry works by providing an interlinked hierarchy of objects designed to facilitate the organization of IP routing between organizations, and also to provide data in an appropriate format for automatic programming of routers. Network engineers from participating organizations are authorized to modify the Routing Policy Specification Language (RPSL) … Read more
RPKI and misconceptions
Podcast: Play in new window | Download (Duration: 6:59 — 8.8MB)
After my blog post about Hurricane Electric and RPKi support, I was seeing some comments by folks that warrant some clarification. I put together a short midnight podcast on this. To summarize1. route original validation is not the same as having ROA’S with your RIR2. If you have an ASN you should have a peering … Read more