diff --git a/draft-ietf-quic-transport.md b/draft-ietf-quic-transport.md index fd1816fed3..df02e4911d 100644 --- a/draft-ietf-quic-transport.md +++ b/draft-ietf-quic-transport.md @@ -2901,7 +2901,7 @@ connection if an alternative path cannot be found. ### Special Considerations for PMTU Discovery -Traditional ICMP-based path MTU discovery in IPv4 {{!RFC1191}} is potentially +Traditional ICMP-based path MTU discovery in IPv4 {{!PMTUDv4}} is potentially vulnerable to off-path attacks that successfully guess the IP/port 4-tuple and reduce the MTU to a bandwidth-inefficient value. TCP connections mitigate this risk by using the (at minimum) 8 bytes of transport header echoed in the ICMP @@ -2936,12 +2936,12 @@ application data, as they consume the congestion window. However, by definition their likely loss in a probe packet does not require delay-inducing retransmission of application data. -When implementing the algorithm in Section 7.2 of {{!RFC4821}}, the initial +When implementing the algorithm in Section 7.2 of {{!PLPMTUD}}, the initial value of search_low SHOULD be consistent with the IPv6 minimum packet size. Paths that do not support this size cannot deliver Initial packets, and therefore are not QUIC-compliant. -Section 7.3 of {{!RFC4821}} discusses tradeoffs between small and large +Section 7.3 of {{!PLPMTUD}} discusses tradeoffs between small and large increases in the size of probe packets. As QUIC probe packets need not contain application data, aggressive increases in probe size carry fewer consequences.