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“K16304” — 2012/11/19 — 9:15
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104
Concurrent Multipath Transfer Using SCTP Multihoming
only as long as the receiver receives data in order. Reordered PDUs should be acked
immediately. With CMT’s frequent reordering, this rule causes an SCTP receiver to
frequently not delay acks. Hence a negative side-effect of reordering with CMT is
increased ack traffic.
To prevent this increase, we propose that a CMT receiver ignore the rule men-
tioned above. That is, a CMT receiver does not immediately ack an out-of-order
PDU, but delays the ack. Thus, a CMT receiver always delays acks, irrespective of
whether or not data are received in order.
2
Though this