rfc9368v7.txt		rfc9368.txt
	skipping to change at line 144 ¶		skipping to change at line 144 ¶
	* The "Maximum Segment Lifetime" (MSL) represents the time a QUIC		* The "Maximum Segment Lifetime" (MSL) represents the time a QUIC
	packet can exist in the network. Implementations can make this		packet can exist in the network. Implementations can make this
	configurable, and a RECOMMENDED value is one minute. Note that		configurable, and a RECOMMENDED value is one minute. Note that
	the term "segment" here originated in Section 3.4.1 of [TCP].		the term "segment" here originated in Section 3.4.1 of [TCP].
	2. Version Negotiation Mechanism		2. Version Negotiation Mechanism
	This document specifies two means of performing version negotiation:		This document specifies two means of performing version negotiation:
	1) "incompatible", which requires a round trip and is applicable to		1) "incompatible", which requires a round trip and is applicable to
	all versions, and 2) "compatible", that allows saving the round trip		all versions, and 2) "compatible", which allows saving the round trip
	but only applies when the versions are compatible (see Section 2.2).		but only applies when the versions are compatible (see Section 2.2).
	The client initiates a QUIC connection by choosing an Original		The client initiates a QUIC connection by choosing an Original
	Version and sending a first flight of QUIC packets with a long header		Version and sending a first flight of QUIC packets with a long header
	to the server [QUIC-INVARIANTS]. The client's first flight includes		to the server [QUIC-INVARIANTS]. The client's first flight includes
	Version Information (see Section 3), which will be used to optionally		Version Information (see Section 3), which will be used to optionally
	enable compatible version negotiation (see Section 2.3) and to		enable compatible version negotiation (see Section 2.3) and to
	prevent version downgrade attacks (see Section 4).		prevent version downgrade attacks (see Section 4).
	Upon receiving this first flight, the server verifies whether it		Upon receiving this first flight, the server verifies whether it
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