But as I did write network code years ago, the answer is simply yes. Examples of Netware by Novell and today's more common IP networking is a common example. Since this is not debated you can have both, no one I know would bother to write a paper. So yes is the answer and no deep research would be required unless one was writing a paper. Networking peers would not demand proof or paper.
As to performance that's an interesting problem as many older studies didn't test or use "switched networked hubs." So their premise on performance are now invalid and your new networker might tell you need to segment a LAN. We nod when we have that person in the shop and then ask them to tell us why do this in a switched network. They usually can't tell us why except to quote some outdated book.
Hello there I am a cyber security student at GCU currently doing my 4th year honours project. The research question that I am currently working from is "A simulation investigation of the effects on perfomance when multiple routing protocols are adopted across a network". So my question just now is, Is it really possible to have more than one protocol working on a network? if so then links to some external sources that i would read or similar papers i could read would be amazing. Thank you for your time reading my question.