Cascaded connections created in the gateway are kept in a connection stack, with the Replication Server that issued the first connect command placed at the bottom of the stack. Use show connection and show server commands to manage your cascaded connections.
When your connection stack includes Replication Server versions 15.2, and 15.1 or earlier, and you issue a disconnect command, the show connection and show server commands may not display the expected output. This is because the disconnect command behaves differently in Replication Server 15.1 and earlier. In In these versions, a disconnect command terminates the gateway mode, and returns the working server status to the Replication Server that issued the first connect command.