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Linux/net/dccp/ccids/Kconfig

  1 menu "DCCP CCIDs Configuration"
  2 
  3 config IP_DCCP_CCID2_DEBUG
  4         bool "CCID-2 debugging messages"
  5         ---help---
  6           Enable CCID-2 specific debugging messages.
  7 
  8           The debugging output can additionally be toggled by setting the
  9           ccid2_debug parameter to 0 or 1.
 10 
 11           If in doubt, say N.
 12 
 13 config IP_DCCP_CCID3
 14         bool "CCID-3 (TCP-Friendly)"
 15         def_bool y if (IP_DCCP = y || IP_DCCP = m)
 16         ---help---
 17           CCID-3 denotes TCP-Friendly Rate Control (TFRC), an equation-based
 18           rate-controlled congestion control mechanism.  TFRC is designed to
 19           be reasonably fair when competing for bandwidth with TCP-like flows,
 20           where a flow is "reasonably fair" if its sending rate is generally
 21           within a factor of two of the sending rate of a TCP flow under the
 22           same conditions.  However, TFRC has a much lower variation of
 23           throughput over time compared with TCP, which makes CCID-3 more
 24           suitable than CCID-2 for applications such streaming media where a
 25           relatively smooth sending rate is of importance.
 26 
 27           CCID-3 is further described in RFC 4342,
 28           http://www.ietf.org/rfc/rfc4342.txt
 29 
 30           The TFRC congestion control algorithms were initially described in
 31           RFC 5348.
 32 
 33           This text was extracted from RFC 4340 (sec. 10.2),
 34           http://www.ietf.org/rfc/rfc4340.txt
 35 
 36           If in doubt, say N.
 37 
 38 config IP_DCCP_CCID3_DEBUG
 39         bool "CCID-3 debugging messages"
 40         depends on IP_DCCP_CCID3
 41         ---help---
 42           Enable CCID-3 specific debugging messages.
 43 
 44           The debugging output can additionally be toggled by setting the
 45           ccid3_debug parameter to 0 or 1.
 46 
 47           If in doubt, say N.
 48 
 49 config IP_DCCP_TFRC_LIB
 50         def_bool y if IP_DCCP_CCID3
 51 
 52 config IP_DCCP_TFRC_DEBUG
 53         def_bool y if IP_DCCP_CCID3_DEBUG
 54 endmenu

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