The phenomenon of description
SMC2.0 R3 version SC is not available.
Possible reasons for
SC related services are not started.
The necessary ports are not listening.
Network unavailable (external SC scenario).
For other reasons, location information needs to be collected.
Position ideas and solutions
1.First, check whether the three services of SC have been successfully launched, including Access, Business and UCS, as shown in the figure below:

If the services are started, do the next check.
2.The CMD command line is used to check whether SC port listening is successful. The ports to be checked are mainly port 22 and port 8443. The
command is:
Netstat -ano|findstr: port number

I've done well in LISTENING on both ports. LISTENING on the other port helps me improve.
3.If the listening is successful and the SC is external, you need to check whether the network from SC to SMC is unblocked. You can try Telnet SC
port 22 on SMC; Or port 443 of Telnet SMC on SC. If Telnet can connect normally, the network connection is normal; If you cannot connect, check
the network.
If the problems of port monitoring are investigated, then go to SMC installation path (default: Huawei Technologies Co., Ltd.), Switch Center\Bin
relative path to collect two log files accessout. log and businessout. log, and send them back to the developer for analysis, as shown in the figure
below:
SMC and SC trace information is collected at the same time. SMC collection method of information refers to "guidance on location information
collection", while SC trace information requires SSH connection to SC, which can be obtained by clicking the following command.
If SC has a lot of trace information, you can save the information to a file by setting up the CRT tool (the latest version is recommended, and the
older version may not be able to connect because the protocol version is too low). The operation is as follows:

Step 1: after connecting to SC, select "Log Session" under the menu of [File], then select the location and File name of the File in the path selection
box that pops up, and then select "save". In this way, future information and operations will be saved to the file, as shown in the figure below:

Step 2: in SecureCRT, trace traceon module access level debug and trace traceon module business level debug are entered. Trace is opened as
shown in the figure below:

Step 3: after the operation, enter the command: trace traceoff to close trace, and then collect the Session file of trace information selected in step 1.
Information collection
SMC Trace information.
Trace information for SC.


