https://www.cisco.com/c/en/us/support/docs/security/web-security-appliance/118843-technote-wsa-00.html
WSA Behavior on Path MTU Discovery with Use of WCCP - Cisco
This document describes a problem encountered where the router drops packets when your configuration includes both Web Cache Communication Protocol (WCCP) and...
path mtu discoverywsabehavior
https://www.rfc-editor.org/rfc/rfc9869
RFC 9869: Datagram Packetization Layer Path MTU Discovery (DPLPMTUD) for UDP Options
This document specifies how a UDP Options sender implements Datagram Packetization Layer Path MTU Discovery (DPLPMTUD) as a robust method for Path MTU...
path mtu discovery