Juniper Networks Advanced BGP License - license - 1 appliance

BGP is a heavy-duty, secure protocol that must be configured on a per-peer basis. Once a peering session has been configured, BGP uses a TCP connection to establish a session. After a BGP session is established, traffic is passed along the BGP-enabled link.

Although BGP requires a full-mesh topology to share route information, you can use route reflectors and confederations in a large autonomous system (AS) to reduce scaling problems.