A collection of 2 posts

BGP Confederations (GNS3 Lab)

Similar to using route reflectors confederations are usually used to reduce the amount of IBGP connections needed for a full mesh. They do this by splitting an AS into multiple sub ASs. In

BGP Attributes

When BGP sends an UPDATE packet to a peer it sends path attributes associated with the prefix. These path attributes are then used by BGP to pick the best route to a destination.