rfc9049v3.txt		rfc9049.txt
	skipping to change at line 401 ¶		skipping to change at line 401 ¶
	* For example, if you can obtain the same understanding of path		* For example, if you can obtain the same understanding of path
	characteristics from measurements obtained over a few more round		characteristics from measurements obtained over a few more round
	trips, endpoint implementers are unlikely to be eager to add		trips, endpoint implementers are unlikely to be eager to add
	complexity, and many attributes can be measured from an endpoint,		complexity, and many attributes can be measured from an endpoint,
	without assistance from intermediate nodes.		without assistance from intermediate nodes.
	For "Per-Connection State", the key questions discussed in the		For "Per-Connection State", the key questions discussed in the
	Research Group were "how much state" and "where state is maintained".		Research Group were "how much state" and "where state is maintained".
	* Integrated Services (IntServ) (Section 6.2) required state at		* Integrated Services (IntServ) (Section 6.2) required state at
	every intermediate node for every connection between two		every participating intermediate node for every connection between
	endpoints. As the Internet ecosystem has evolved, carrying many		two endpoints. As the Internet ecosystem has evolved, carrying
	connections in a tunnel that appears to intermediate nodes as a		many connections in a tunnel that appears to intermediate nodes as
	single connection has become more common, so that additional end-		a single connection has become more common, so that additional
	to-end connections don't add additional state to intermediate		end-to-end connections don't add additional state to intermediate
	nodes between tunnel endpoints. If these tunnels are encrypted,		nodes between tunnel endpoints. If these tunnels are encrypted,
	intermediate nodes between tunnel endpoints can't distinguish		intermediate nodes between tunnel endpoints can't distinguish
	between connections, even if that were desirable.		between connections, even if that were desirable.
	For "Keeping Traffic on Fast Paths", we noted that this was true for		For "Keeping Traffic on Fast Paths", we noted that this was true for
	many platforms, but not for all.		many platforms, but not for all.
	* For backbone routers, this is likely an Invariant, but for		* For backbone routers, this is likely an Invariant, but for
	platforms that rely more on general-purpose computers to make		platforms that rely more on general-purpose computers to make
	forwarding decisions, this may not be a fatal flaw for Path Aware		forwarding decisions, this may not be a fatal flaw for Path Aware
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