Tag: BGP

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 »

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 »

When filtering routes with BGP it’s very likely that you’ve used prefix lists.  Once again, this is just something that we’ve been taught to do and consider good practice.  On… Read more »

BGP synchronization is something that can easily be misunderstood.  This is particularly the case since it is now disabled by default on Cisco devices.  Let’s start with a basic configuration… Read more »

BGP peer groups are a really great tool that I don’t use often enough.  Basically, a BGP peer group stores a set of configuration parameters that can be applied to… Read more »

As we’ve seen, BGP is very different from the IGPs that are traditionally used for next hop forwarding.  One of the most significant differences between BGP and other routing protocols… Read more »