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Training Camp • Cybersecurity Glossary
Path Maximum Transmission Unit Discovery (PMTUD) is a process used to determine the maximum packet size that can be transmitted without fragmentation along a path in a network.
PMTUD Definition: Path Maximum Transmission Unit Discovery (PMTUD) is a process used to determine the maximum packet size that can be transmitted without fragmentation along a path in a network.
Path MTU Discovery (PMTUD) is a technique used in networking to determine the maximum size of IP packets that can be transmitted without fragmentation across a path. It involves sending packets with the "Don't Fragment" flag set and relies on receiving ICMP messages if a packet exceeds the maximum size along the path, allowing the sender to adjust the packet size accordingly.
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