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BGP Configuration Overview

To configure the device as a node in a BGP network:

  1. Configure network interfaces. See the Ethernet Interfaces User Guide for Routing Devices.
  2. Configure point-to-point peering sessions. See Example: Configuring External BGP Point-to-Point Peer Sessions.
  3. Configure IBGP sessions between peers. See Example: Configuring Internal BGP Peer Sessions.
  4. Configure BGP session attributes such as the autonomous systems for the BGP peers. See Autonomous Systems for BGP Sessions
  5. Configure a routing policy to advertise the BGP routes.
  6. (Optional) Configure route reflector clusters. See Example: Configuring a Route Reflector.
  7. (Optional) Subdivide autonomous systems (ASs). See Example: Configuring BGP Confederations.
  8. (Optional) Assign a router ID to each routing device running BGP.
  9. (Optional) Configure a local preference to direct all outbound AS traffic to a specific peer. See Example: Configuring the Local Preference Value for BGP Routes.
  10. (Optional) Configure routing table path selection options that define different ways to compare multiple exit discriminators (MEDs). See Understanding BGP Path Selection.