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:
To connect to SQL Server Database Engine you must have a network protocol enabled. Microsoft SQL Server can service requests on several protocols at the same time. Clients connect to SQL Server with a single protocol. If the client program does not know which protocol SQL Server is listening on, configure the client to sequentially try multiple protocols. Use SQL Server Configuration Manager to enable, disable, and configure network protocols.