SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
There are two types of switch flow control: CPPI port flow control and Ethernet port flow control. The CPPI and Ethernet port naming conventions for data flow into and out of the switch are reversed. For the CPPI port (port 0), transmit operations move packets from external memory into the switch and then out to either or both Ethernet transmit ports (ports 1 and 2). CPPI receive operations move packets that were received on either or both Ethernet receive ports to external memory.