For the handful of people who come across this blog and have posted comments, thank you very much for the kind words. This blog is on hold for a bit while I finish up my JNCIE-SP, which I am taking in a couple weeks. I’ve come across a lot of excellent blog post topics from […]
TAC Tales #2: How to troubleshoot
The case came in P1, and I knew it would be a bad one. One thing you learn as a TAC engineer is that P1 cases are often the easiest. A router is down, send an RMA. But I knew this P1 would be tough because it had been requeued three times. The last engineer […]
RIB Group Confusion
This article continues to be the most popular one on this blog. However, I published it back in 2014 while I was working on my JNCIE-SP, and that was a long time ago. I now work at Cisco and do not have access to Junos, and my memory of Junos is getting spotty. I am […]
Tac Tales #1: Case routing
Before I worked at TAC, I was pretty careless about how I filled in a TAC case online. For example, when I had to select the technology I was dealing with in the drop-down menu, if I didn’t see exactly what I had then I would go ahead and pick something at random and figure […]
Juniper’s mysterious inet.3 table
When I first started configuring MPLS on Juniper routers, I came across the strange and mysterious inet.3 table. What could it possibly be? When I worked in Cisco TAC I handled hundreds of MPLS VPN cases, but I never had encountered anything quite like inet.3 in IOS land. As I researched inet.3 I found the […]
IS-IS Levels and Adjacencies
In this post, we’ll be looking at IS-IS inter-area concepts, and hopefully clearing up some of the confusion ISIS areas create in the minds of engineers who are used to OSPF. ISIS handles areas quite differently from OSPF, and if you think about ISIS areas in OSPF terms you are likely to be confused by […]
Welcome!
This is my first post on this blog which I created some time ago and have left dormant. Give that there are about twice as many blogs as people, it would seem best to start out with a statement of my purpose and intent. Before that, a little background: I currently work for Juniper Networks, […]