Which of the following reasons will form discrete services on the network management system? (Multiple choice)
A . 5.0 platform equipment, a network element in a complete path is not in the current network management
B . Cross-connection of intermediate network element services is not configured
C . A complete path is configured between the online NE and the pre-configured NE
D . For the services between two network elements in the same network management system, under the premise that the correct time slot is selected, the cross-connection of one network equipment is delivered through the U2000, and the other is delivered through the command line software and the network management is not uploaded.
Answer: BD