Vertical Swimlane Diagram of HTTP/2 Multiplexing Flow

Tech architecture infographic titled "HTTP/2 Multiplexing" using archetype REQUEST FLOW (client → server → DB). Vertical swimlane diagram composition for a mid-level developer, showing parallel request streams over a single connection. Render clean labeled BOXES connected by directional ARROWS. Main lanes and components: 1) Browser — icon: desktop browser — role: "Client sends multiple HTTP requests over one HTTPS connection". 2) HTTP/2 Connection — icon: layered network tunnel — role: "Single persistent TCP connection carrying multiplexed streams". 3) API Server — icon: server rack — role: "Terminates TLS, parses HTTP/2 frames, routes requests". 4) Cache — icon: memory chip — role: "Stores hot responses for low-latency reads". 5) Queue — icon: message queue stack — role: "Buffers asynchronous jobs from API processing". 6) Database — icon: cylinder database — role: "Persists application data and query results". Show the Browser opening one arrow to HTTP/2 Connection labeled "HTTPS + TLS 1.2/1.3 over TCP". Inside the connection area, depict multiple parallel streams with distinct mini-boxes or channels: "Stream 1: GET /profile", "Stream 3: GET /feed", "Stream 5: GET /notifications", each with small frame segments interleaved, labeled "HEADERS frame", "DATA frame", "Interleaved frames", and note "One connection, many concurrent streams". Arrow from HTTP/2 Connection to API Server labeled "HTTP/2 frames". From API Server to Cache label "Cache lookup" and return arrow "Cached JSON response". From API Server to Database label "SQL query / read-write" and return arrow "Rows / result set". From API Server to Queue label "Async job message". Return arrow from API Server back through HTTP/2 Connection to Browser labeled "Multiplexed responses, 200 OK / 304 Not Modified". Include a small side note near API Server: "Streams are independent; slow response does not block other streams at application layer". Include another small note near connection: "Header compression: HPACK". Add numbered legend 1-7 in English: 1. "Browser opens one HTTPS connection to the server." 2. "HTTP/2 negotiates via TLS ALPN and establishes a single TCP connection." 3. "Browser sends multiple requests as separate streams on that one connection." 4. "Frames from different streams are interleaved while preserving stream IDs and ordering rules." 5. "API server processes each stream, checking cache first, then querying the database if needed." 6. "Some requests also publish asynchronous work to the queue without blocking other streams." 7. "Server returns multiplexed responses over the same connection, improving parallel delivery versus multiple HTTP/1.1 connections." Use technically accurate terminology: HTTP/2, stream IDs, frames, HPACK, ALPN, TLS, TCP, 200 OK, 304 Not Modified. Do not claim zero head-of-line blocking globally; if noted, specify only that multiplexing reduces application-layer blocking compared with HTTP/1.1. Visual style: editorial developer-blog illustration, isometric or flat tech-diagram style, vector-clean infographic layout. Mood: cyberpunk neon with warm beige and navy palette, subtle glowing edges, dark navy background, warm beige panels, neon magenta/cyan accent lines, crisp readable labels, polished but educational, not vendor-branded, not an audited reference architecture. All text MUST be written in English (array). Every heading, label, caption, legend and metric name in the image must be in English — not English. Spell each English word correctly using English characters and diacritics. Numbers stay as digits, no real cloud-vendor logos (AWS / GCP / Azure) — use generic cloud icons, no watermarks No real cloud-vendor logos (AWS, GCP, Azure) beyond generic cloud icons. Common protocol names (HTTPS, TCP, JWT, OAuth, REST, GraphQL) stay in canonical English form. No security-claim overstatements (do not present diagrams as audited reference architectures).