January 23, 2019

DMVPN in a VRF Environment

In the lab, I have been introducing vrf environments into everything that I do. MPLS was the tip of the iceberg and then from there, I started tonight going over DMVPN in a vrf...

Two Methods of MPLS Interface Configuration within OSPF

Within all of the practice labs I have worked through for the CCIE Lab exam and in most real world applications I have seen, MPLS networks are run on top of (or within) an...

BGP Best Path Selection: Origin

For the last few days I have been studying for my CCIE R&S lab and have been doing every practice lab I can get my hands on. The one thing they all seem to...

AutoRP Multicast Configuration Guide

In a previous post, Sparse Mode Multicast Configuration Guide, I mentioned that there is an open standard method of configuring multicast in your network and then a Cisco proprietary method. This post will cover the...

Sparse Mode Multicast Configuration Guide

Multicast is something that can be used to reduce required bandwidth by a single device when sending to multiple devices. In reverse, it can also allow multiple devices to receive data from a single...

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...
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