The cbping utility is a new tool for checking simple network connectivity with Couchbase clusters and remote XDCR clusters. It performs tests such as port openness, elapsed time taken to connect, and checks the nodes in the cluster. The tool can also check connectivity to XDCR target clusters. A sample output of a three-node Couchbase cluster is provided, showing the results of the tests, including open ports, connection refused errors, and elapsed times. The tool includes an option `-v` for verbose output, which provides descriptions for each port.