Which IEEE protocol allows Ethernet to operate as a lossless fabric?
A.
Priority-based Flow Control (802.1Qbb)
B.
Enhanced Transmission Selection ( 802.1Qaz)
C.
Bandwidth Demand Circuit (802.1Qax)
D.
Quantized Congestion Control (802.1Qau)
E.
Data Center Bridging Exchange (802.1Qab)
##Priority-based Flow Control (PFC): IEEE 802.1Qbb provides a link level flow control mechanism that can be controlled independently for each frame priority. The goal of this mechanism is to ensure zero loss under congestion in DCB networks.
Interesting how this explanation is identical to that found in 841 articles on the web. Thanks though!