Alcatel-Lucent 7450 Quality Of Service Manual page 687

limit-pir-zero-drain
Syntax [no] limit-pir-zero-drain
Context config>qos>adv-config-policy>child-control>offered-measurement
Description This command is used to configure the system to use the minimum configurable PIR instead of an
HQoS derived zero operational PIR. The default behavior is to allow the operational PIR of the queue
to remain the last configured value while setting the queue MBS to zero (preventing queuing of newly
arriving packets). Retaining the previous PIR value may cause a momentary burst above an aggregate
rate associated with the queue as it drains. Using the limit-pir-zero-drain command causes the queue
to drain at the lowest rate possible (typically 1Kbps) which limits overrun situations.
The no form of this command reverts to default behavior.
lub-init-min-pir
Syntax [no] lub-init-min-pir
Context config>qos>adv-config-policy>child-control>offered-measurement
Description This command is used to initialize new queues associated with a LUB context to use a minimum PIR
similar to the effect of the limit-pir-zero-drain command. When a queue is initially created in a LUB
context it defaults to a zero value PIR until HQoS has an opportunity to configure an offered rate based
operational PIR. Enabling this command forces a minimum rate operational PIR to be applied to the
queue for use by enqueued packets prior to an HQoS iteration.
The no form of this command reverts to default behavior.
internal-scheduler-weight-mode
Syntax internal-scheduler-weight-mode {default | force-equal | offered-load | capped-offered-
load}
no internal-scheduler-weight-mode
Context config>qos>adv-config>policy>child-control>bandwidth-distribution
Description This command overwrites the internal scheduler weight configured on a card level.
Parameters
default — Use card-level configuration
force-equal — Queues are always equally weighted
offered-load — Queues are weighted based on observed offered load
capped-offered-load — Queues are weighted based on observed offered load capped by PIR
Quality of Service Guide
Advanced QoS Policies
689