https://www.sangfor.com en Thu, 04 Jun 2026 16:25:09 +0800 Fri, 12 Sep 2025 16:23:10 +0800 https://www.sangfor.com/glossary/cloud-and-infrastructure/osi-model-osi-7-layers-explained The OSI Model defines 7 layers of communication: Physical, Data Link, Network, Transport, Session, Presentation, and Application. These OSI layers explain how data moves between de... 2623fb6f-8294-4fa3-aa1c-ebaf72d4381c Fri, 12 Sep 2025 16:23:10 +0800 Sangfor Sangfor Technologies