# OQ-06: Server-Side ALPN vs Client-Side ALPN - **Origin**: ADR-001 - **Status**: resolved - **Door type**: One-way - **Priority**: low - **Resolution**: One ALPN per connection. Clients open one QUIC connection per ALPN. QUIC connections are cheap (multiplexed over the same UDP flow). See ADR-006. - **Cross-references**: ADR-001, ADR-006