This read-create object specifies the TCP port number this PCEP client uses to communicate with its peers. Admins normally leave it at PCEP's well-known assigned port, but can change it when a firewall policy or a non-standard peer deployment requires a different port. For example, setting pcePcepClientTcpPort to 4189 configures the client to listen for and initiate PCEP sessions on that port instead of the default.