• Sqlism (8/7/2012)


    Hi DBA's

    why there are two ports 1433 and 1434 for SQL Server.

    whts the purpose of two?

    how are they different?

    I came to know 1433 is for TCP\IP

    1434 for UDP what does this mean ?

    Thanks in advance!

    The default instance of SQL Server listens on Port 1433. Port 1434 is used by the SQL Browser Service which allows connections to named instances of SQL Server that use dynamic ports with out having to know what port each named instance is using, especially since this can change between restarts of the named instance.

    Books Online should provide more details.