Understanding BGP Implementation at IXPN

Peering at an Internet Exchange Point requires a solid understanding of BGP (Border Gateway Protocol).

When configuring your router for IXPN, consider the following best practices:

  • Max-Prefix Limit: Ensure you set a reasonable limit to protect your router.
  • Route Filtering: Always filter inbound and outbound routes.
  • MD5 Authentication: We recommend securing your BGP sessions with MD5.

Configuration Examples

Cisco IOS

router bgp 65000
 neighbor <neighbor-address> remote-as <neighbor-as>
 neighbor <neighbor-address> description IXPN Route Server 1

Juniper JunOS

protocols {
    bgp {
        group IXPN {
            neighbor <neighbor-address> {
                peer-as <neighbor-as>;
            }
        }
    }
}