1# SPDX-License-Identifier: GPL-2.0-only 2menu "DCCP CCIDs Configuration" 3 4config IP_DCCP_CCID2_DEBUG 5 bool "CCID-2 debugging messages" 6 help 7 Enable CCID-2 specific debugging messages. 8 9 The debugging output can additionally be toggled by setting the 10 ccid2_debug parameter to 0 or 1. 11 12 If in doubt, say N. 13 14config IP_DCCP_CCID3 15 bool "CCID-3 (TCP-Friendly)" 16 default IP_DCCP = y || IP_DCCP = m 17 help 18 CCID-3 denotes TCP-Friendly Rate Control (TFRC), an equation-based 19 rate-controlled congestion control mechanism. TFRC is designed to 20 be reasonably fair when competing for bandwidth with TCP-like flows, 21 where a flow is "reasonably fair" if its sending rate is generally 22 within a factor of two of the sending rate of a TCP flow under the 23 same conditions. However, TFRC has a much lower variation of 24 throughput over time compared with TCP, which makes CCID-3 more 25 suitable than CCID-2 for applications such streaming media where a 26 relatively smooth sending rate is of importance. 27 28 CCID-3 is further described in RFC 4342, 29 https://www.ietf.org/rfc/rfc4342.txt 30 31 The TFRC congestion control algorithms were initially described in 32 RFC 5348. 33 34 This text was extracted from RFC 4340 (sec. 10.2), 35 https://www.ietf.org/rfc/rfc4340.txt 36 37 If in doubt, say N. 38 39config IP_DCCP_CCID3_DEBUG 40 bool "CCID-3 debugging messages" 41 depends on IP_DCCP_CCID3 42 help 43 Enable CCID-3 specific debugging messages. 44 45 The debugging output can additionally be toggled by setting the 46 ccid3_debug parameter to 0 or 1. 47 48 If in doubt, say N. 49 50config IP_DCCP_TFRC_LIB 51 def_bool y if IP_DCCP_CCID3 52 53config IP_DCCP_TFRC_DEBUG 54 def_bool y if IP_DCCP_CCID3_DEBUG 55endmenu 56