Posts Tagged ‘CCIP’


One of the frequent questions I hear regarding L3VPNs, is regarding the bottom VPN label.  In this article, we will focus on the control plane that provides both the VPN and transit labels, and then look at the data plane that results because of those labels.

In the topology, there are 2 customer sites (bottom right, and bottom left).  The BGP, VRFs, Redistribution, etc are all configured to allow us to focus on the control and data plane.   Lets begin by verifying that R1 is sourcing the network,

MPLS-class blog3 simple larger canvas

A debug verifies that R1 is sending the updates for to R2.

R1 sources net

Continue Reading

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Our BGP class is coming up!  This class is for learners who are pursuing the CCIP track, or simply want to really master BGP.  I have been working through the slides, examples  and demos that we’ll use in class, and it is going to be excellent.  :) If you can’t make the live event, we are recording it, so it will be available as a class on demand, after the live event.    More information, can be found by clicking here.

One of the common questions that comes up is “Why does the router choose THAT route?

We all know, (or at least after reading the list below, we will know), that BGP uses the following order, to determine the “best” path.

bgp bestpath

So now for the question.   Take a look at the partial output of the show command below: Continue Reading

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Last week we wrapped up the MPLS bootcamp, and it was a blast!   A big shout out to all the students who attended,  as well as to many of the INE staff who stopped by (you know who you are :) ).    Thank you all.

Here is the topology we used for the class, as we built the network, step by step.

MPLS-class blog

The class was organized and delivered in 30 specific lessons. Here is the “overview” slide from class: Continue Reading

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Are you wondering what the month of August 2010 will bring for INE fans?

Try all new, online bootcamps in the following disciplines:

  • MPLS
  • BGP
  • CCNA
  • CCNP
  • CCDA

Watch the blog and your email for all of the exciting new details.

Join the INE Experts Online in August

Join the INE Experts Online in August

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