rfc-9268

IPv6 Minimum Path MTU Hop-by-Hop Option

R. Hinden, G. Fairhurst

date2022-08 streamIETF areaint wg6man statusEXPERIMENTAL pages20 canonicalhttps://www.rfc-editor.org/rfc/rfc9268 doi10.17487/RFC9268 errataview

This document specifies a new IPv6 Hop-by-Hop Option that is used to record the Minimum Path MTU (PMTU) along the forward path between a source host to a destination host. The recorded value can then be communicated back to the source using the return Path MTU field in the Option.