Along with the MP-DCCP module, an implementation of BBR Congestion Control algorithm for DCCP was developed under the Congestion Control Identifier (CCID) 5. The corresponding module can be enabled during compilation under the sectionNetworking support > Networking options > The DCCP Protocol > DCCP CCIDs Configuration and can be configured after loading DCCP module, with the following commands:

Select CCID5

sysctl -w net.dccp.default.tx_ccid=5
sysctl -w net.dccp.default.rx_ccid=5

Enable fq qdisc

echo 'net.core.default_qdisc=fq' | tee -a /etc/sysctl.conf
sysctl -p