Alcatel-Lucent 7750 SR Manual page 1027

the pool, causing them to miscalculate when to start randomly drop packets.
If the CBS value is larger than the MBS value, an error will occur, preventing the CBS change.
The no form of this command returns the CBS size to the default value.
Default no cbs
Parameters
size-in-kbytes — The size parameter is an integer expression of the number of kilobytes reserved for
high-prio-only
Syntax high-prio-only percent
no high-prio-only
Context config>service>ies>if>sap>egress>queue-override>queue
config>service>ies>if>sap>ingress>queue-override>queue
Description
This command can be used to override specific attributes of the specified queue's high-prio-only
parameters. The high-prio-only command configures the percentage of buffer space for the queue,
used exclusively by high priority packets.
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. The high-prio-only parameter is used to override the default value derived
from the network-queue command.
The defined high-prio-only value cannot be greater than the MBS size of the queue. Attempting to
change the MBS to a value smaller than the high priority reserve will generate an error and fail
execution. Attempting to set the high-prio-only value larger than the current MBS size will also
result in an error and fail execution.
The no form of this command restores the default high priority reserved size.
Parameters percent — The percent parameter is the percentage reserved for high priority traffic on the queue. If a
mbs
Syntax mbs {size-in-kbytes | default}
no mbs
Context config>service>ies>if>sap>egress>queue-override>queue
config>service>ies>if>sap>ingress>queue-override>queue
Description This command can be used to override specific attributes of the specified queue's MBS parameters.
7750 SR OS Services Guide
the queue. If a value of 10KBytes is desired, enter the value 10. A value of 0 specifies that no
reserved buffers are required by the queue (a minimal reserved size can still be applied for
scheduling purposes).
Values
0 — 131072, default
value of 10KBytes is desired, enter the value 10. A value of 0 specifies that none of the MBS of
the queue will be reserved for high priority traffic. This does not affect RED slope operation for
packets attempting to be queued.
Values
0 — 100, default
IES Service Configuration Commands
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