DLDP/4/PORT_NB_FULL:New neighbor cannot be added, because the number of neighbors of the port has reached the upper limit (128). (PortName=[STRING])
Neighbors in the DLDP are generally direct-connection ports, and neighbors under a port refer to all neighbors under the port. The MAC address of the equipment and a port ID uniquely identify a neighbor. When the number of neighbors under a port reaches the upper limit (128), no more neighbors can be added.