|  | menu "DCCP CCIDs Configuration (EXPERIMENTAL)" | 
|  | depends on EXPERIMENTAL | 
|  |  | 
|  | 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) (EXPERIMENTAL)" | 
|  | 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 |