748 Acronyms Acronym B-DA B-SA B-Tag BCH BDI BEI BER BIAE BLSR BPDU BPON C-DA C-SA C-Tag CBR CCM CGM Expansion Backbone destination address Backbone source address Backbone tag Bose-Chaudhuri-Hochquenghem (code) Backward defect indicator Backward error indicator Bit error rate Backward incoming alignment error Bidirectional line-switched ring Bridge protocol data units Broadband passive optical network Customer destination address Customer source address Customer tag Constant bit rate Continuity check message Cross-gain modulation