Port 9000 is used to access the NMC (Network Management Console) server from an NMC client, typically a Java instance.
In essence, it facilitates communication between the central management server and the software used to access and manage the network. This allows users to monitor and control network devices and services through a graphical interface.
Therefore, if you're troubleshooting network management issues, ensuring that port 9000 is open and accessible between the NMC client and server is critical. Firewall rules or other network configurations might be blocking this communication and preventing the client from connecting.
