Re: ISCSI: Urgent Flag requirement violates TCP.

[Vern Paxson <vern@ee.lbl.gov>]

Why is it so important to go as fast as possible in the face of a sequence
hole?  If the hole is due to packet loss, then the sender is going to have
to cut their sending rate in half next RTT anyway.  If it's due to a
reordering, then measurement studies have found the reordering generally
resolves in a few msec.  And in this case will you turn off duplicate
acks, which might otherwise trigger a congestion response anyway?

More generally, along what sort of possibly lossy, possibly reordering
paths will iSCSI be trying to squeeze out Gbps+ rates?

		Vern