If you need a TCP replacement, you won't find a QUIC one
Some might say there's a possibility QUIC will start to replace TCP. This week I want to argue that QUIC is actually solving a different problem than that solved by TCP, and so should be viewed as something other than a TCP replacement.becomes the default transport, but I believe that is because TCP has been pushed into roles for which it was not originally intended. Let’s take a step back to see why I make that claim.
In those days, there were only two transport protocols of note in the Internet, UDP and TCP, so we gave each of those its own section. Since ouraims to teach networking principles rather than just the contents of RFCs, we framed the two sections as two different communication paradigms: a simple demultiplexing service , and a reliable byte stream .
The core of RPC is a request/reply paradigm. You send a bunch of arguments from the client to the server, the server does some computation with those arguments, and then it returns the results of the computation. Yes, a reliable byte stream might help get all the arguments and results across the network correctly, but there is more to RPC than that.
RPC needs to handle lost, misordered, and duplicated messages; an identifier space is required to match requests and responses; and fragmentation/reassembly of messages must be supported, to name a few requirements. Out-of-order delivery, which a reliable byte stream prevents, is also desirable for RPC.
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