For an IP switch I need to have a function with as end goal making use of capacity management.
While having a look at different setups, I see that a Rx and Tx function are created. Why are both needed and can't there be just one single function?
Secondly, for each function I see that an IP In and IP Out interface are defined. Why can't this be done with just one single IP In/Out interface?
I do think it's important to note here that this depends on the duplex setting of the specific interface. The way its described by both Leander and Emmanuel requires the interface to be in full duplex mode. This is typically the case in modern networks but because of misconfigured interfaces or an interface Auto - negociation failure, it can still fall back to a half duplex setting. In half duplex setting managing the capacity on the interface might be a bit different.