Juniper vMX – Getting Started Guide

I'm excited to finally have the opportunity to play with Juniper's vMX! Since it was announced last year I've been eagerly waiting for release - a couple of client projects already have passed by where the vMX would have been a perfect fit. vMX already won an award earlier this year at Interop Tokyo 2015! In this … Continue Reading ››

Junos – securing the RE (filter order is important – eBGP running slow?)

First of all - the Juniper Day One books are a superb resource for learning Junos. If you've not checked out the library already - do it now! 😉 Recently a client of mine found a bit of a gotcha with the framework filters discussed in the Day One - Securing the Routing Engine (and … Continue Reading ››

Mapping traffic to an LSP on Junos – BGP and table inet.3 (part 2)

Now that we know about IGP based LSP forwarding on Junos, the 2nd part in this series focuses on BGP and table inet.3.  We also continue from where part 1 left off, by looking at how traffic-engineering bgp-igp and mpls-forwarding can affect route redistribution from OSPF into BGP.

Lab Topology

For this lab, I’ll be … Continue Reading ››

Mapping traffic to an LSP on Junos (part 1)

It's been a while since I wrote a Junos post... there are a few things that I've been meaning to write up for a while, so this series will focus on MPLS label switched paths (LSP) and how to put traffic on to an LSP. By default IGPs won't use an LSP, so this … Continue Reading ››

IPv6: So I have my /32… now what?

I was recently doing some work at an ISP. They had been assigned their /32 IPv6 prefix a while ago, but other than a few internal test networks hadn't done much with it since it was assigned. I was pretty much asked "So I have my /32 ... now what?" OK, so that's not quite the question … Continue Reading ››