A data switch for network communications includes a first data port
interface and a second data port interface is provided supporting at
least one data port transmitting and receiving data. A CPU interface is
provided, with the CPU interface configured to communicate with a CPU. A
common memory is provided, and communicates with the first data port
interface and the second data port interface. A memory management unit is
provided, and communicates data from the first data port interface and
the second data port interface and a common memory. At least two sets of
communication channels are provided, with each of the communication
channels communicating data and messaging information between the first
data port interface, the second data port interface, and the memory
management unit.