> This isolation, however, comes at a cost, because the traditional > communication abstraction maintained by these new network-layer extensions > hides information that transport-layer protocols should act on. The information is hidden only for the purposes of connection management, not for parameter estimation. > Many common > transport mechanisms, such as congestion window estimation, RTT measurements > or path MTU discovery, are not agile enough to properly handle the significant > instantaneous changes to path characteristics that these network-layer > extensions introduce. I might say that "Many current transport algorithms for...", so that it is not implied that there are no algorithms that would work. _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf