As a BNIX participant you are not obliged to peer with all BNIX participants. But you must have at least one active peer. Participants who want to peer draw up a bilateral peering contract, without any Bnix involvement.
Participants may have unlimited connections with one another. In essence, the data is transferred directly via these connections, although it can also be transferred via BNIX. BNIX services do not include installing any VLANs for private interconnection between participants.