Historical
IEEE 802.1Qca-2015
IEEE Standard for Local and metropolitan area networks-- Bridges and Bridged Networks - Amendment 24: Path Control and Reservation
Explicit path control, bandwidth reservation, and redundancy (protection, restoration) for data flows are specified in this amendment to IEEE Std 802.1Q-2014. (The PDF of this standard is available at no cost compliments of the IEEEGET802 program.
Institute of Electrical and Electronics Engineers [ieee]