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authorGerrit Renker <gerrit@erg.abdn.ac.uk>2008-09-04 07:30:19 +0200
committerGerrit Renker <gerrit@erg.abdn.ac.uk>2008-09-04 07:45:41 +0200
commit2b81143aa3505e2460b24b357996c2f21840ea58 (patch)
tree37f752fb85c563f965655cec834bb289fd831137 /net/dccp/input.c
parent2f3e3bbad917c426d3aba03a535809e5699de156 (diff)
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dccp ccid-3: Always perform receiver RTT sampling
This updates the CCID-3 receiver in part with regard to errata 610 and 611 (http://www.rfc-editor.org/errata_list.php), which change RFC 4342 to use the Receive Rate as specified in rfc3448bis, requiring to constantly sample the RTT (or use a sender RTT). Doing this requires reusing the RX history structure after dealing with a loss. The patch does not resolve how to compute X_recv if the interval is less than 1 RTT. A FIXME has been added (and is resolved in subsequent patch). Furthermore, since this is all TFRC-based functionality, the RTT estimation is now also performed by the dccp_tfrc_lib module. This further simplifies the CCID-3 code. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
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