Ports
Page 54 7750 SR OS Interface Configuration Guide
The MLPPP class queue parameters and its scheduling parameters are also configured by applying
one of the three pre-defined egress QoS profiles to an MLPPP bundle.
Table 9 and Figure 6 provide the details of the class queue threshold parameters. Packets marked
with a high drop precedence, such as out-of-profile, by the service or network ingress QoS policy
will be discarded when any class queue reaches the OOP threshold. Packet with a low drop
precedence marking, such as in-profile, will be discarded when any class queue reaches the max
threshold.
Figure 6: MLPPP Class Queue Thresholds for In-Profile and Out-of-Profile Packets
Table 9: MLPPP Class Queue Threshold Parameters
Class 0 Class 1 Class 2 Class 3
Queue Threshold (in ms
@ Available bundle rate)
MaxOopMaxOop MaxOopMaxOop
2-Class Bundle Default
Egress QoS Profile
250 125 750 375 N/A N/A N/A N/A
3-Class Bundle Default
Egress QoS Profile
50 25 200 100 750 375 N/A N/A
4-Class Bundle Default
Egress QoS Profile
10 5 50 25 150 75 750 375
4-Class Bundle
Egress QoS Profile 1
25 12 5 3 200 100 1000 500
4-Class Bundle
Egress QoS Profile 2
25 12 5 3 200 100 1000 500
4-Class Bundle
Egress QoS Profile 3
25 12 5 3 200 100 1000 500
OSSG258
Scheduler
(pir, cir)
Fabric
Out
In
Mbs
Cbs
High-prio-only
Service Egress SAP Queue
Out
In
Max Out of Profile
(oop)
MDA Class Queue
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