Alcatel-Lucent 7450 Quality Of Service Manual page 184

Ethernet service switch; service router; extensible routing system
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Network Queue QoS Policy Command Reference
Parameters
weight weight — Defines the weight the queue or scheduler will use at the above-cir port priority
level level — Defines the port priority the queue or scheduler will use to receive bandwidth for its
cir-weight cir-weight — Defines the weight the queue or scheduler will use at the within-cir port
cir-level cir-level — Defines the port priority the queue or scheduler will use to receive
rate
Syntax
rate percent [cir percent]
no rate
Context
config>qos>network-queue>queue
Description
This command defines the administrative Peak Information Rate (PIR) and the administrative
Committed Information Rate (CIR) parameters for the queue. The PIR defines the percentage that the
queue can transmit packets through the switch fabric (for SAP ingress queues) or out an egress
interface (for SAP egress queues). Defining a PIR does not necessarily guarantee that the queue can
transmit at the intended rate. The actual rate sustained by the queue can be limited by oversubscription
factors or available egress bandwidth.
The CIR defines the percentage at which the system prioritizes the queue over other queues competing
for the same bandwidth. For SAP ingress, the CIR also defines the rate that packets are considered in-
profile by the system. In-profile then out-of-profile packets are preferentially queued by the system at
egress and at subsequent next hop nodes where the packet can traverse. To be properly handled
throughout the network, the packets must be marked accordingly for profiling at each hop.
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level (defined by the level parameter).
Values
0 to 100
Default
1
above-cir offered-load.
Values
1 to 8 (8 is the highest priority)
Default
1
priority level (defined by the cir-level parameter). The weight is specified as an integer value
from 0 to 100 with 100 being the highest weight. When the cir-weight parameter is set to a
value of 0, the queue or scheduler does not receive bandwidth during the port scheduler's
within-cir pass and the cir-level parameter is ignored. If the cir-weight parameter is 1 or
greater, the cir-level parameter comes into play.
Values
0 to 100
Default
1
bandwidth for its within-cir offered-load. If the cir-weight parameter is set to a value of 0 (the
default value), the queue or scheduler does not receive bandwidth during the port scheduler's
within-cir pass and the cir-level parameter is ignored. If the cir-weight parameter is 1 or
greater, the cir-level parameter comes into play.
Values
0 to 8 (8 is the highest priority)
Default
0
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