Qos In Mlfr And Frf.12 Fragmentation - Alcatel-Lucent 7450 Quality Of Service Manual

QoS in MLFR and FRF.12 Fragmentation

The minimum information rate, referred to as MIR in
Class 1 queues only. The MIR parameter value is entered as a percentage of the available
bundle rate. The WRR weight, referred to as W1, W2, and W3 in
applies to class 1, class 2, and class 3 queues. W1 is not configurable and is internally set to
a value of 1 such that Class 1 queue shares 1% of the available bundle rate when the sum of
W1, W2, and W3 equals 100. W2 and W3 weights are integer values and are user
configurable such that Class 2 queue shares W2/(W1+W2+W3) and Class 3 queue shares
W3/(W1+W2+W3) of the available bundle rate.
All queue threshold and queue scheduling parameters are adjusted to the available bundle
rate. If a member link goes down or a new member link is added to the bundle, the scheduling
parameters MIR, W1, W2, W3, as well as the per class queue thresholds OOP and max are
automatically adjusted to maintain the same values.
In addition, operator user can configure the value of the FR scheduling class ingress re-
assembly timeout for an MLFR bundle. The default values of the timers are shown in
Table
The following operations require the bundles or links associated with a QoS profile to be
shutdown to take effect.
The following operations can be performed without shutting down the associated bundles or
links:
838
Figure 54: FR Class Queue Scheduling for an MLFR Bundle
Class0
Class1
Class2
Class3
73.
Table 73: Default FR Ingress QoS Profile: Reassembly Timers (msec)
Class 0
10
• A change of the numbered ingress or egress QoS profile.
no
> 100%
RR
no
> MIR
yes
W1
W2
Wrr
W3
Class 1 Class 2
10 100
Strict
Priority
al_0195
Figure 54 and MIR in CLI, applies to
Table 72 and weight in CLI,
Class 3
100
Quality of Service Guide