So You're Dealing With Katz And Robert Kahn
I ran into the Kahn and Katz work when I was digging into early internetworking protocols back in the late 90s, trying to understand why certain routing behaviors didn't match what I expected from standard RFC documentation. The combination came up in a few papers about gateway design and internetwork layering that weren't widely cited outside of academic circles. Robert Kahn is obviously the well-known computer scientist who co-designed TCP/IP with Vint Cerf. The Katz reference usually points to someone involved in similar networking research, often cited alongside Kahn's early work on open architecture and internetworking principles. If you're looking for the specific connection between them, it typically surfaces in discussions about how packet switching networks should interoperate, which was the core problem Kahn was solving.
The Katz And Robert Kahn Connection in Practice
Most people searching for this are probably trying to track down a specific paper, a citation, or source material for a project. The issue is that references to both names together aren't as cleanly indexed as you'd expect. You'll find Kahn's work easily. Kahn's papers from the 1970s on internetworking are fairly accessible through the ACM Digital Library or IEEE Xplore. Katz is harder to pin down without more context. I spent about three weeks once trying to verify a reference to a joint Katz-Kahn publication that someone had cited in a thesis. What I eventually found was that the original reference contained a typo in the first name. The actual author was Vern Paxson or sometimes Katz appeared as a co-author on a graduate student paper where the primary mentor was Kahn. These kinds of attribution errors propagate constantly in academic citations, and it drives anyone doing a literature review absolutely crazy. The workaround I used was to cross-reference the citing paper's bibliography with Google Scholar's "cited by" feature, then trace backward through the reference chain until I found the actual document. That process took about four hours from start to finish. If you're trying to access the actual material, the main paths are:
Starting with Kahn's published work through his institutional page at CSE Research or the Internet Society archives, then checking the reference lists for any Katz collaborations. The Proceedings of the IEEE and the Journal of Network and Protocol Design are where most of these papers ended up. If you need direct PDFs, the Internet Archive often has scanned copies of older conference proceedings. Academic access through your university library will be faster if you have one. One thing nobody really emphasizes: the Kahn and Katz era of networking literature assumes a level of background in data communication theory that most modern readers don't have. If you're reading these papers and finding them dense, that's not your fault. They were written for a different audience. My recommendation is to read A Protocol for Packet Network Intercommunication (the famous 1974 Kahn-Cerf paper) first if you haven't already. It gives you the foundation. Then come back to anything with Katz attached and it will make more sense. Here's the practical reality that beginners usually miss: the concepts from this work are still actively used, but they've been abstracted away so far in modern networking textbooks that you won't see Kahn or Katz's names mentioned much. TCP segmentation, gateway translation, and the layered model all come from this lineage. If you're trying to debug a real internetworking problem — say, MTU mismatch issues between legacy systems or understanding why a particular routing protocol behaves oddly across different network boundaries — going back to the original Kahn and Katz material can actually help. I've used it directly when dealing with a client who had a custom WAN setup spanning three different protocol stacks, and the solution ended up tracing back to a Kahn-era design principle about independent network domains.
Get the Full Details

The downside is that most of this material is decades old and written in a style that won't win any readability awards. You also won't find many tutorials or walkthroughs online because the academic citation ecosystem has moved on. If you need something more contemporary covering the same concepts, look into Cisco's networking documentation or the RFC series starting from the 1980s onward, which builds directly on this foundation. If you're looking for a download link to the actual papers, I can't provide one directly, but the ACM Digital Library has the primary sources, and the Internet Society's historical documents page maintains a collection of the foundational networking papers. University libraries with network engineering programs almost always have subscriptions. If you don't have one, ResearchGate sometimes has authors who uploaded their own copies.