Specified database mirroring configuration settings : Principal network address: {0} Mirror network address: {1} Witness ...

Specified database mirroring configuration settings :

Principal network address: {0}
Mirror network address: {1}
Witness network address: {2}
Operating mode: {3}

To use the specified network addresses for mirroring this database, click Start Mirroring.  To wait to start mirroring, click Do Not Start Mirroring; you can then start mirroring by clicking Start Mirroring on the Mirroring page of the Database Properties dialog box. Alternatively, you can exit the Database Properties dialog box without starting mirroring now, but you will need to configure the operating modes and server network addresses again before you can start mirroring.