Port to port意思

"Port to port" is a term used in various contexts, but it is most commonly associated with shipping and networking. Here are the two primary meanings:

1. Shipping and Maritime Industry: In the context of shipping and maritime transport, "port to port" refers to the transportation of goods or passengers between two ports. It implies that the service provider is responsible for the transportation from the point of departure at one port to the point of arrival at another port, without including any land-based transportation in between. This term is often used in contracts and agreements to specify the scope of service provided by a shipping company or freight forwarder.

2. Computer Networking: In computer networking, "port to port" can refer to two different but related concepts:

   • Switch Port to Switch Port: This refers to the connection between two switch ports, typically used to extend the network by connecting switches together. When switch A is connected to switch B using a cable that connects a port on switch A to a port on switch B, this is an example of a "port to port" connection.
   • TCP/IP Ports: In the context of TCP/IP networking, "port to port" can refer to communication between applications on two different computers using specific port numbers. Each application on a computer that uses TCP/IP to communicate with other applications runs on a unique port number. When data is sent from one application's port to another application's port on a different computer, it is said to be a "port to port" communication.

In both cases, "port to port" implies a direct connection or communication between two points, without intermediaries.