For those of you interested in the routing protocol of the Internet – Border Gateway Protocol, or BGP – I have written a number of articles on the topic. I recommend you checkout the following:
- Five things you should know about Cisco IOS BGP configuration
- How to use BGP to achieve Internet redundancy
- Build Your Skills: Use IP and BGP to troubleshoot Internet connectivity
All 3 of these articles I wrote for TechRepublic and they offer some great tips!
Also, for the official Cisco BGP documentation, please see: Configuring BGP in the Cisco IOS.