You can establish network connectivity with the following protocols:
Transmission Control Protocol (TCP), for connection-oriented sessions
User Datagram Protocol (UDP), for connectionless sessions
When you view TCP information you can:
check the status of the connections, from the switch perspective, as they traverse the network
detect intermittent connectivity
detect attacks on resources
determine which applications are active by checking the port numbers
UDP endpoint information tells you about local and remote UDP activity.
When you view UDP information you can:
determine which applications are active by checking the local and remote port numbers
identify processes within a UDP session to enable multiplexing of a port mapping for UDP