Packetization Layer Path MTU Discovery for Datagram Transports
2018
This document describes a robust method for Path MTU Discovery (PMTUD)
for datagram Packetization Layers (PLs). The document describes an
extension to RFC 1191 and RFC 8201, which specifies ICMP-based Path
MTU Discovery for IPv4 and IPv6. The method allows a PL, or a datagram
application that uses a PL, to discover whether a network path can
support the current size of datagram. This can be used to detect and
reduce the message size when a sender encounters a network black hole
(where packets are discarded, and no ICMP message is received). The
method can also probe a network path with progressively larger packets
to find whether the maximum packet size can be increased. This allows
a sender to determine an appropriate packet size, providing
functionally for datagram transports that is equivalent to the
Packetization Layer PMTUD specification for TCP, specified in RFC
4821. The document also provides implementation notes for
incorporating Datagram PMTUD into IETF datagram transports or
applications that use datagram transports. When published, this
specification updates RFC 4821.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
0
References
3
Citations
NaN
KQI