eBGP: Creating Neighbors using loopback interfaces, configuration examples, and explanation of BGP behaviors / concepts when it comes to loopbacks!

As you can see from Topology, the NBMA routers are all running iBGP, while our outlying router are running eBGP - It just got real! Now I know what you are thinking, "What if the physical interface connected to the Remote BGP peer goes down? What then smart guy? Just lose the Adjacency of that … Continue reading eBGP: Creating Neighbors using loopback interfaces, configuration examples, and explanation of BGP behaviors / concepts when it comes to loopbacks!

BGP RID manual configuration, iBGP Peering with R3, a much briefer “show” command for verification, and important BGP behavior info for exam day!

So my initial thought was to make R2 the iBGP Peer to R1 in AS 100, however I may want to use R4 also running on 15.x code to get into the mix here as we progess, so on R3 it goes! And a quick tidbit of knowledge to start things off: You cannot make … Continue reading BGP RID manual configuration, iBGP Peering with R3, a much briefer “show” command for verification, and important BGP behavior info for exam day!