[Contents] [Prev] [Next] [Index] [Report an Error]

Moving Data Between Layers

When IP receives a datagram that is addressed to the local host, it must pass the data portion of the datagram to the correct host-to-host transport layer protocol. IP uses the protocol number in the datagram header to select the transport layer protocol. Each host-to-host transport layer protocol has a unique protocol number that identifies it to IP.

[Contents] [Prev] [Next] [Index] [Report an Error]