If you have multiple connections to the internet with multiple ISP's (ISP1 10mb, ISP2 T1, ISP3 T1) which BGP metric would you use to advertise to all internet bgp routers the path with the most bandwidth? I know you can set the MED but doesnt that only advertise to the neighbor AS? In this case the 3 ISP are all in different AS's and I dont think MED would be the right one. Anybody have any suggestions?
ask your provider a question if he is permitting you to prepend your AS#.
Sometimes ISPs apply as-path lists which allow your AS# only once ocuuring.