> For the complete documentation index, see [llms.txt](https://accs.mikesay.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://accs.mikesay.com/part2/chapter7/osi-model-and-layer-description.md).

# OSI模型和分层描述

TBD