

Performed
by DST node on flows experiencing Limited QoS (no congestion).
Limited QoS
condition is triggered when (b
< bL)T.
DST node
issues regulate message to SRC node.
SRC node
performs re-initiate procedure to locate new (better) route.
Preemptive
behavior is a preventative measure.
Preemptive
behavior maintains QoS levels.