# KISS

AI-generated

“Keep It Simple, Stupid”:
the minimal protocol between a TNC and a host application.
Each [AX.25](../ax25/index.html.md) frame travels whole,
delimited by `FEND` bytes and with a one-byte command and port number in front;
the application does everything above the modem itself.

## References

* [The KISS TNC: A simple Host-to-TNC communications protocol](http://www.ka9q.net/papers/kiss.html) (Chepponis and Karn)
* [Multi-drop KISS](http://he.fi/pub/oh7lzb/bpq/multi-kiss.pdf)
* [KISS on Wikipedia](https://en.wikipedia.org/wiki/KISS_(amateur_radio_protocol))