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QoS GPON Configuration

QoS GPON Configuration

GPON treats QoS explicitly

constant length frames facilitate QoS for time-sensitive applications

5 types of Transmission CONTainers

type 1 – fixed BW
type 2 – assured BW
type 3 – allocated BW + non-assured BW
type 4 – best effort
type 5 – superset of all of the above


GEM adds several PON-layer QoS features

fragmentation enables pre-emption of large low-priority frames
PLI – explicit packet length can be used by queuing algorithms
PTI bits carry congestion indications


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