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| The TCP/IP model (RFC 1122) |
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UDP Lite is a connectionless protocol, very similar to UDP. Unlike UDP, where either all or none of a packet is protected by a checksum, UDP Lite allows for partial checksums that only cover part of a datagram, and will therefore deliver packets that have been partially corrupted. It is particularly useful for multimedia protocols, such as voice over IP, in which receiving a packet with a partly damaged payload is better than receiving no packet at all.
Support for UDP Lite was added in the Linux kernel version 2.6.20.
