We offer our customers BGP sessions connected to our premium backbone through our Cloud Router product. This is a fully hosted BGP session directly performed by the Arista core routers. It allows you to effortlessly BYOIP/BYOAS while you maintain full performance.
For advanced users we also do an actual BGP session to one of your destinations, this allows you to set BGP communities to influence routing. Note: actual traffic does not pass this session, it's merely a controller.