For “basic” multicast I have always found that >70% of the problems I troubleshoot end up being the same things over and over and over again. Missing “trigger” to “pull” the multicast down to the receiver Multicast Distribution Tree (MDT)… Read More ›
Myth: You have to set ttl to 2 because it is decremented on the way to the loopback. Years and years ago I was trying to learn more about BGP and I was reading some book with a chapter on… Read More ›
For over 30 years I’ve been in the playing in the “world of IT” and wow has that world changed a great deal in those years. But through all that change, there has been a thread, for me, that has… Read More ›
This is “Part 2: The Solution” of our ‘whodunnit’ If you have not already read “Part 1: The Clues” please go read that now. 🙂 OSPF Default-Information Originate w/ Route Maps: Part#1 The Clues Solution? You now have all the… Read More ›
Saw something the other day I had never tripped across before. Had to do with the advertising of a default route in OSPF with a route policy applied. I was confused as to why something was happening, so I asked… Read More ›
Join me in a fun IPv6 network detection case! In the first I will lay out the first series of facts and clues. We will isolate to the “suspect” router and then in part… Read More ›