BGP

BGP - Border Gateway Protocol

BGP-4

BGP-4 (cont.)

BGP-4 (cont.)

BGP Attributes

AS Path

Loop Avoidance

AS Path Example

BGP-4: Neighbors

BGP-4: Internal and External Neighbors

BGP-4: Route Updates

BGP Route Selection

BGP <-> IGP Interaction

BGP-4: Stub customer

BGP-4: Stub customer

BGP-4: Multi-homed customer

BGP-4: Multihomed customer

BGP-4: Transit AS

BGP-4: Transit AS

BGP-4: Transit AS

Cisco configuration

Cisco configuration