Alcatel-Lucent 7450 Quality Of Service Manual page 446

QoS Queue Group Template Command Reference
dynamic-mbs
Syntax [no] dynamic-mbs
Context config>qos>qgrps>egr>qgrp>queue
Description This command enables support for dynamically modifying the MBS size of a queue using H-QoS in
order to maintain the maximum latency for traffic in the queue based on the queue's configured MBS
and the ratio of its operational PIR to its administrative PIR. As the H-QoS algorithm updates the
operational PIR, by reducing or increasing it, the MBS of the queue is adjusted accordingly.
The configuration of dynamic MBS and the configuration of queue depth monitoring (monitor-depth
command) are mutually exclusive. Queue depth monitoring is an override on the queue where the
queue group is applied.
The no form of this command disables dynamic MBS resizing.
Default
no dynamic-mbs
enable-exceed-pir
Syntax
Context config>qos>sap-egress>policer
cfg>qos>qgrps>egr>qgrp
Description This command enables the forwarding of traffic exceeding the PIR for a SAP egress or a network
egress queue group (configured in the egress queue group template) policer. This traffic is forwarded
as exceed-profile instead of being dropped.
Default no enable-exceed-pir
hi-low-prio-only
Syntax hi-low-prio-only percent
no hi-low-prio-only
Context config>qos>sap-egress>queue
config>qos>qgrps>egr>qgrp>queue
Description The hi-low-prio-only command configures the percentage of buffer space for the queue, used
exclusively by higher priority (in-profile and out-of-profile) packets. The specified value overrides the
default value for the context. It is applicable to SAP egress QoS policy queues and egress queue group
template queues.
The priority of a packet can only be set in the SAP ingress QoS policy and is only applicable on the
ingress queues for a SAP. At SAP egress, the priority of a packet is based on its profile state. The no
form of this command restores the default high priority reserved size.
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[no] enable-exceed-pir
Quality of Service Guide