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Add MPTCP entry from Nigel Williams

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Benjamin Kaduk 2016-01-18 05:05:55 +00:00
parent 600ecca962
commit 67aee3b18f
Notes: svn2git 2020-12-08 03:00:23 +00:00 
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en_US.ISO8859-1/htdocs/news/status/report-2015-10-2015-12.xml
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@ -3490,4 +3490,77 @@
</task>
</help>
</project>
<project cat='proj'>
<title>Multipath TCP for &os;</title>
<contact>
<person>
<name>
<given>Nigel</given>
<common>Williams</common>
</name>
<email>njwilliams@swin.edu.au</email>
</person>
</contact>
<links>
<url href="https://bitbucket.org/nw-swin/caia-mptcp-FreeBSD/">MPTCP for &os; Repository</url>
<url href="http://caia.swin.edu.au/urp/newtcp/mptcp/">MPTCP for &os; Project Website</url>
</links>
<body>
<p>Multipath TCP (MPTCP) is an extension to TCP that allows
for the use of multiple network interfaces on a standard TCP
session. The addition of new addresses and scheduling of data
across these occurs transparently from the perspective of the TCP
application.</p>
<p>The goal of this project is to deliver an MPTCP kernel
patch that interoperates with the reference MPTCP implementation,
along with additional enhancements to aid network research.</p>
<p>A v0.51 release has been tagged in our repository, with
some minor improvements over v0.5.</p>
<p>We have now removed much of the MPTCP code that was inside
the functions <tt>tcp_do_segment</tt>, <tt>tcp_output</tt>, and
other code used for standard TCP connections. The goal of this is
to restrict the added MPTCP code to just MPTCP connections,
leaving regular TCP connections using the existing code.</p>
<p>We are currently in the process of implementing a subflow
socket buffer upcall and event processing. These will handle
changes in subflow socket state, MP-signalling, and incoming
data segments.</p>
<p>This also requires some re-working of the MP option
processing, particularly how incoming DSN maps are parsed and
stored for use during MP-layer reassembly.</p>
<p>We are also looking at how our changes might take advantage
of the new TCP stack modularisation enhancements to create
subflow-specific TCP functions.</p>
</body>
<sponsor>
The Cisco University Research Program Fund at Community
Foundation Silicon Valley
</sponsor>
<sponsor>
The FreeBSD Foundation
</sponsor>
<help>
<task>
<p>Complete the implementations of subflow event processing
and new option parsing.</p>
</task>
<task>
<p>Update documentation and task lists.</p>
</task>
</help>
</project>
</report>