Alcatel-Lucent 7450 Quality Of Service Manual page 237

Parameters high — Setting the enqueuing parameter to high for a packet increases the likelihood of
low — Setting the enqueuing parameter to low for a packet decreases the likelihood of enqueuing
fc
Syntax [no] fc fc-name
Context config>qos>sap-ingress
Description The fc command creates a class or sub-class instance of the forwarding class fc-name. Once the fc-
name is created, classification actions can be applied and the sub-class can be used in match
classification criteria. Attempting to use an undefined sub-class in a classification command will result
in an execution error and the command will fail.
The no form of the command removes all the explicit queue mappings for fc-name forwarding types.
The queue mappings revert to the default queues for fc-name. To successfully remove a sub-class, all
associations with the sub-class in the classification commands within the policy must first be removed
or diverted to another forwarding class or sub-class.
Parameters fc-name — The parameter sub-class-name is optional and must be defined using a dot separated
Quality of Service Guide
enqueuing the packet when the ingress queue is congested. Ingress enqueuing priority only
affects ingress SAP queuing, once the packet is placed in a buffer on the ingress queue, the
significance of the enqueuing priority is lost.
the packet when the ingress queue is congested. Ingress enqueuing priority only affects
ingress SAP queuing, once the packet is placed in a buffer on the ingress queue, the
significance of the enqueuing priority is lost.
notation with a preceding valid system-wide forwarding class name. Creating a sub-class
follows normal naming conventions. Up to sixteen ASCII characters may be used. If the same
sub-name is used with two or more forwarding class names, each is considered a different
instance of sub-class. A sub-class must always be specified with its preceding forwarding
class name. When a forwarding class is created or specified without the optional sub-class,
the parent forwarding class is assumed.
Within the SAP ingress QoS policy, up to 56 sub classes may be created. Each of the 56 sub-
classes may be created within any of the eight parental forwarding classes. Once the limit of
56 is reached, any further sub-class creations will fail and the sub-class will not exist.
Successfully creating a sub-class places the CLI within the context of the sub-class for further
sub-class parameter definitions. Within the sub-class context, commands may be executed
that define sub-class priority (within the parent forwarding class queue mapping), sub-class
color aware profile settings, sub-class in-profile and out-of-profile precedence or DSCP
markings.
The sub-class-name parameter is optional and used with the fc-name parameter to define a
preexisting sub-class. The fc-name and sub-class-name parameters must be separated by a
period (dot). If sub-class-name does not exist in the context of fc -name, an error will occur.
If sub-class-name is removed using the no fc fc-name.sub-class-name force command, the
default-fc command will automatically drop the sub-class-name and only use fc-name (the
parent forwarding class for the sub-class) as the forwarding class.
Values
Service Egress and Ingress QoS Policies
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