An effort was made to shore up the Open Door in 1921-22 at the Washington Naval Conference, but a challenge was again mounted by the Japanese in the 1930s as they expanded their control in Manchuria. China would not be recognized as a sovereign state until after World War II.
The maximum number of connections across SQL Server versions and editions is 32,767. You can determine how many connections SQL Server currently has by looking at:
Replication connections to SQL Server use the typical regular Database Engine ports (TCP port 1433 for the default instance, etc.) Web synchronization and FTP/UNC access for replication snapshot require additional ports to be opened on the firewall.