Another experiment: Sending packets through chains of network functions

Transcript

Now we will take a look for just a few moments at another experiment. In this case, the student is sending packets through a chain of network functions.  The reason is that the student wants to understand what is the performance when we take multiple network functions, such as we might use in network virtualization, where we might have a NAT device feeding into a router feeding into a load balancer, etc.  So he takes the simple case of one network function, then the case of two network functions where we have one of these followed by another one and then repeating that up to the case we seven network functions in a row. And then he looks at what is the cache miss rate in the processor. So he has all this running inside one particular core on one particular module of a multi CPU system.