diff --git a/draft-ietf-quic-transport.md b/draft-ietf-quic-transport.md index df1bc71883..532b85fef8 100644 --- a/draft-ietf-quic-transport.md +++ b/draft-ietf-quic-transport.md @@ -4082,7 +4082,8 @@ QUIC assumes a minimum IP packet size of at least 1280 bytes. This is the IPv6 minimum size ({{?IPv6=RFC8200}}) and is also supported by most modern IPv4 networks. Assuming the minimum IP header size of 40 bytes for IPv6 and 20 bytes for IPv4 and a UDP header size of 8 bytes, this results in a maximum datagram -size of 1232 bytes for IPv6 and 1252 bytes for IPv4. +size of 1232 bytes for IPv6 and 1252 bytes for IPv4. Thus, modern IPv4 +and all IPv6 network paths will be able to support QUIC. Any maximum datagram size larger than 1200 bytes can be discovered using Path Maximum Transmission Unit Discovery (PMTUD; see {{pmtud}}) or Datagram