Bug 1860 – TCP needs the Window Scale option

Bug 1860 - TCP needs the Window Scale option


Summary:	TCP needs the Window Scale option

Status:	RESOLVED FIXED

Product:	ns-3
Classification:	Unclassified
Component:	internet
Version:	ns-3-dev
Hardware:	All All

Importance:	P5 enhancement
Assigned To:	George Riley

URL:
Keywords:

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2014-02-18 17:45 UTC by Tommaso Pecorella
Modified:	2014-09-07 15:35 UTC (History)
CC List:	3 users (show)

See Also:

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Description Tommaso Pecorella 2014-02-18 17:45:29 UTC

http://tools.ietf.org/html/rfc1323

The discussion is here:
https://groups.google.com/forum/#!topic/ns-3-users/V6NLMQaTAEg

Without the WSopt, the TCP throughput is limited in high bandwidth-delay networks, e.g.:
P2P link, 100Mbps, 10ms delay (20ms RTT) -> 20Mbps max TCP throughput (between 25 and 26 considering the IP and P2P headers overhead).

Note: the above example isn't very high bandwidth-delay !

Comment 1 Tom Henderson 2014-02-21 13:40:55 UTC

There is an active codereview for this:
https://codereview.appspot.com/24900043/

We expect it to be merged for ns-3.20, once comments are resolved.

Comment 2 Tommaso Pecorella 2014-09-07 15:35:00 UTC

Added in changeset 10885:462d70f54ada