Client Protocols - Named Pipes Properties (Protocol Tab)
Applies to: 
SQL Server - Windows only
In Microsoft SQL Server Configuration Manager use the Protocol tab on the Named Pipes Properties dialog box to view or modify the description of default pipe. To connect to a different pipe, type the pipe in the Default Pipe box. For more information about connection strings, see Creating a Valid Connection String Using Named Pipes.
Options
Default Pipe
Specifies the default pipe the Named Pipes Net-library will use to attempt to connect to the target instance of SQL Server. By default, SQL Server listens on: \\.\pipe\sql\query
To connect to the default pipe, enter sql\query
Enabled
Possible values are Yes and No.