A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : TCP Extended Acknowledgment Options
Author(s) : M. Huang
Filename : draft-huang-tcpm-tcp-eack-00.txt
Pages : 6
Date : 2010-03-23
TCP may experience asymmetric bi-directional performance and poor
over all performance when acknowledgments (ACKs) are sent by
separate packets instead of being piggybacked by data packets.
Between two TCP end points, when two-way traffic flows do not share
the same TCP connection, the increase of traffic volume in one
direction consumes more bandwidth in the reverse direction by
generating more separate ACK packets, potentially causing more
congestions in the reverse direction.
An Extended Acknowledgment (EACK) mechanism can help overcome these
limitations. The receiving TCP sends back EACK packets to the sender
informing the sender of data, including data of the current TCP
connection and data of other eligible connections, that have been
received. EACK thus reduces the need for separate ACK packets and
improves the bi-directional symmetry and over all throughput.
This memo proposes an implementation of EACK and discusses its
related issues.
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