BGP aggregate advertise-map
I hope you are starting to get the point, but there are a ton of different maps that can be configured with BGP. The next one I want to cover… Read more »
BGP Aggregate as-set
When advertising aggregates in BGP, it’s possible to specify the ‘as-set’ command as part of the aggregate. This forces the BGP process to advertise the prefix with a list of… Read more »
BGP Inject Maps
Boiled down inject maps look for a particular prefix, from a particular source, and if detected, advertise other prefixes. This is mostly used along with BGP aggregation to ‘un-aggregate’ certain… Read more »
BGP Unsuppress-maps
Unsuppress maps fit a very specific need in BGP. When writing this post, I was really only able to think of one or two examples of where you might need… Read more »
BGP Communities
BGP communities can be summarized as a set of tags that can be used to further classify BGP prefixes. That might not be a ‘RFC’ definition, but in my mind,… Read more »
BGP and AS-Path access-lists
One of the well known BGP attributes is AS-Path. This tell us where the BGP prefix came from in terms of autonomous systems that the prefix has traversed to get… Read more »