BGP confederations
Another option for not requiring a full iBGP mesh between routers is to break the routers into sub-autonomous systems. This is referred to as confederating the autonomous systems. Let’s jump… Read more »
Tag: BGP
BGP Route Reflectors
One of the main points to remember about iBGP relationships is that iBGP assumes that all of the routers within a single AS are fully meshed. That is, each router… Read more »
eBGP Multihop vs TTL-Security
It’s a well known fact that eBGP peers need to be (by default) directly connected. That is, the BGP packets generated by a BGP speaker have a TTL of one. … Read more »
eBGP Race condition
I ran into this today at work and I thought it was worth blogging about. So let’s take this example topology… Let’s say that router1 is an edge router providing… Read more »