Zoom System Design

Quick Reference: Step 5: WebRTC | Step 6: Load Balancing

Quick Reference

Scale: 300M+ daily participants, real-time video

Key Components: Video conferencing, real-time communication, scaling

Challenges: Real-time video, scaling, quality optimization

Clear Definition

Zoom is a video conferencing platform requiring real-time video/audio communication, scaling, and quality optimization.

šŸ’” Key Insight: Zoom uses selective forwarding (SFU), adaptive bitrate, and efficient encoding for quality and scale.

Core Concepts

Architecture

  • SFU: Selective Forwarding Unit for routing
  • Encoding: Efficient video encoding
  • Scaling: Regional servers
  • Quality: Adaptive bitrate

Quick Reference Summary

Zoom: Video conferencing with real-time communication.

Key Components: SFU, encoding, scaling.

Key Design: Selective forwarding, adaptive bitrate, regional servers.

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