Explicit QoS Spec:
Class Type: PMM
QoS specs: SR
Weight/Importance of the flow: 1,2 or 3.
preemption (yes/no): default is NO.
Explicit QoS specs should check that the QoS requested respects
implicit QoS that the class guarantees.
Algorithm:
1. Find a path with minimum weight due to CLs along its path.
2. Admit flow if:
Ef f
new
+
k
Ef f k<= r as
Ef f () = maxSR,
P RT
B/R+T
where T= MBS/PR, R is the scheduling rate for TCL4 in
ingress link, B is buffer size dedicated to PMC class.
3. If not then repeat 1 else admit the flow.
4. If no feasible path is found, then look for flows that are lower
in weight (importance) and have preemption allowed.
Administrator Settings:
1. Dual token bucket meter and marker with r1 = SR and b1
(bucket size) = BSS, r2=PR, b2= x * M. x can take values
from [1,5]. Possible value is 2.
2. WRED parameters (maxth, minth, maxp) for the flow are set
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