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kernel/linux-imx6_3.14.28/net/dccp/ccids/Kconfig 1.64 KB
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  menu "DCCP CCIDs Configuration"
  
  config IP_DCCP_CCID2_DEBUG
  	bool "CCID-2 debugging messages"
  	---help---
  	  Enable CCID-2 specific debugging messages.
  
  	  The debugging output can additionally be toggled by setting the
  	  ccid2_debug parameter to 0 or 1.
  
  	  If in doubt, say N.
  
  config IP_DCCP_CCID3
  	bool "CCID-3 (TCP-Friendly)"
  	def_bool y if (IP_DCCP = y || IP_DCCP = m)
  	---help---
  	  CCID-3 denotes TCP-Friendly Rate Control (TFRC), an equation-based
  	  rate-controlled congestion control mechanism.  TFRC is designed to
  	  be reasonably fair when competing for bandwidth with TCP-like flows,
  	  where a flow is "reasonably fair" if its sending rate is generally
  	  within a factor of two of the sending rate of a TCP flow under the
  	  same conditions.  However, TFRC has a much lower variation of
  	  throughput over time compared with TCP, which makes CCID-3 more
  	  suitable than CCID-2 for applications such streaming media where a
  	  relatively smooth sending rate is of importance.
  
  	  CCID-3 is further described in RFC 4342,
  	  http://www.ietf.org/rfc/rfc4342.txt
  
  	  The TFRC congestion control algorithms were initially described in
  	  RFC 5348.
  
  	  This text was extracted from RFC 4340 (sec. 10.2),
  	  http://www.ietf.org/rfc/rfc4340.txt
  
  	  If in doubt, say N.
  
  config IP_DCCP_CCID3_DEBUG
  	bool "CCID-3 debugging messages"
  	depends on IP_DCCP_CCID3
  	---help---
  	  Enable CCID-3 specific debugging messages.
  
  	  The debugging output can additionally be toggled by setting the
  	  ccid3_debug parameter to 0 or 1.
  
  	  If in doubt, say N.
  
  config IP_DCCP_TFRC_LIB
  	def_bool y if IP_DCCP_CCID3
  
  config IP_DCCP_TFRC_DEBUG
  	def_bool y if IP_DCCP_CCID3_DEBUG
  endmenu