Latency Issues – IP Redirects

Sometimes, you may run into a situation where traffic enters a routed interface and then per the routing table, exits the same interface. For instance, take a look at the topology below: In that topology...

BGP AS-Override

If you follow me on Twitter (@TheRoutingTable) you may have seen my tweet earlier this evening: https://twitter.com/TheRoutingTable/status/843549123517304834 This is because I was working on a CCIE MPLS lab earlier and forgot it again. Since this is...

BGP Route Filtering: Prefix Lists

Summary Next on the chopping block when it comes to filtering routes shared between BGP neighbors is a prefix list. There isn't anything confusing to this one, the name is pretty accurate. You are simply...

BGP Route Filtering: Route-Maps

Overview This will be the first of a few posts. In preparations for my second attempt at my CCIE RS Lab exam, I am going back to the basics on route filtering for BGP. The...

#RoutingTableLive – MPLS Lab

Decided to get at it early this morning since I booked my second CCIE RS attempt last night. This was a good MPLS lab with two VRFs (RED and BLUE). Two clients on each...

CCIE R&S Lab Attempt Recap

As those of you know that follow me on Twitter know, I recently made my first attempt at the CCIE RS Lab Exam. This will be a small recap of my experience and the...

MPLS Configuration Lab

This lab was something I worked on last week and for some reason it stuck in my head very well. I can put together a basic MPLS configuration now from memory which is definitely...