How does BGP differ from other protocols?

• BGP’s primary purpose is to enable communication between two autonomous systems.
• Key features:
  • Next-Hop Paradigm: BGP supports cooperation among various BGP speakers within an autonomous system.
  • Path Information: BGP advertising includes route information and the accessible destination and next destination pair.
  • Routing Decision Process: BGP uses multiple attributes for routing decisions.
  • External and Internal Neighbors: BGP transmits external neighbors between autonomous systems and internal neighbors within the same autonomous system.
  • Weight: BGP can change outbound traffic routing from a single locally configured router.
  • Policy Application: BGP can apply policies set up by administrators.