Changes of string in 37690: Most of the protocols in the TCP/IP protocol suite rely on the simple Internet checksum in order to verify that a received packet has not been affected by transmission errors. Despite its popularity and ease of implementation, the Internet checksum is not the only available checksum mechanism. Cyclical Redundancy Checks (CRC_) are very powerful error detection schemes that are used notably on disks, by many datalink layer protocols and file formats such as ``zip`` or ``png``. They can easily be implemented efficiently in hardware and have better error-detection capabilities than the Internet checksum [SGP98]_ . However, CRCs are sometimes considered to be too CPU-intensive for software implementations and other checksum mechanisms are preferred. The TCP/IP community chose the Internet checksum, the OSI community chose the Fletcher checksum [Sklower89]_. Nowadays there are efficient techniques to quickly compute CRCs in software [Feldmeier95]

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English

Most of the protocols in the TCP/IP protocol suite rely on the simple Internet checksum in order to verify that a received packet has not been affected by transmission errors. Despite its popularity and ease of implementation, the Internet checksum is not the only available checksum mechanism. Cyclical Redundancy Checks (CRC_) are very powerful error detection schemes that are used notably on disks, by many datalink layer protocols and file formats such as ``zip`` or ``png``. They can easily be implemented efficiently in hardware and have better error-detection capabilities than the Internet checksum [SGP98]_ . However, CRCs are sometimes considered to be too CPU-intensive for software implementations and other checksum mechanisms are preferred. The TCP/IP community chose the Internet checksum, the OSI community chose the Fletcher checksum [Sklower89]_. Nowadays there are efficient techniques to quickly compute CRCs in software [Feldmeier95]_.

English 957 characters edited Current translation State: Read-only

3 years ago

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