Answer: In computer networking, a port number is part of the addressing information used to identify the senders and receivers of messages. Port numbers are most commonly used with TCP/IP connections.nswer: In computer networking, a port number is part of the addressing information used to identify the senders and receivers of messages. Port numbers are most commonly used with TCP/IP connections.
At a black tie fall wedding, men should wear tuxedos and women should wear formal gowns. While you can get away with wearing a dressy cocktail dress, it's better to wear a floor length gown or an evening suit. Black is acceptable, but a jewel tone will feel more festive and fun.
If your wedding is an evening wedding, guests should know this, since it's a typical rule of etiquette. You can write on the invitation, Black tie invited so that your guests know that it's a formal wedding. Based on your description of what you want them to wear, this is considered formal wear.