UNIX for Dummies Questions & Answers

OK, I think I have found what you talking about. It is on the actual page 32 of the document (what you call page 36 probably because that is what your PDF reader says it is).
The document certainly states here and elsewhere that "A port is specified by a port name which is an index into a port name space." which is correct.

A port name is an "index into a port name space." This is not the same as saying that ports have names. See the paragraph immediately under Fig 3 on page 28 and Fig. 4 on page 31.

OK, I think I understand that part. So does this mean that port names and port rights are the same thing and also what exactly is a port(as in what is its role in relation all the rest concepts)?

No, port name and port rights are not the same thing.

Humm, the referenced document clearly defines in detail exactly what a port is. You need to read and re-read this document until you understand the concepts.

oh, I think I understand now. A port is sort of like a "node" that channels(port rights) connect to and a port name is an identifier stored in the port namespace that is used sort of like a "container", to "group" all the associated rights.