It's not possible to check the current TCP connection number for gateway virtual server on NetScaler GUI, but it can be checked on the NetScaler CLI.

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Instructions

1. SSH login NetScaler NSIP
2. Enter shell
3. Run below command. Assume that the result of the command is N, then the current TCP connection number of the gateway virtual server is N-2.

/netscaler/nscli -U 127.0.0.1:<NetScaler admin account>:<NetScaler admin account password> "show connectiontable | grep <gateway virtual server IP>" | wc -l

Example:

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Now, we can check the TCP connection number for gateway virtual server on NetScaler CLI.