One of the things we have been doing more of here at MTIN is BGP setups. I am starting a series of posts on BGP troubleshooting and tidbits
Looking Glass
http://www.bgp4.as/looking-glasses
A looking glass can help you see how certain parts of the Internet view your advertisements. This can be very helpful in troubleshooting. Is someone in Europe seeing your advertisement? How about the guy next door?
