Jon Postel Quote

TCP implementations will follow a general principle of robustness: be conservative in what you do, be liberal in what you accept from others.

The "Robustness Principle", RFC 793, Transmission Control Protocol, entire text of section 2.10 (September 1981)

TCP implementations will follow a general principle of robustness: be conservative in what you do, be liberal in what you accept from others.

TCP implementations will follow a general principle of robustness: be conservative in what you do, be liberal in what you accept from others.

TCP implementations will follow a general principle of robustness: be conservative in what you do, be liberal in what you accept from others.

TCP implementations will follow a general principle of robustness: be conservative in what you do, be liberal in what you accept from others.