Service Egress and Ingress QoS Policies
Quality of Service Guide 297
Parameters fc fc-name — The value given for fc fc-name must be one of the predefined forwarding classes
in the system. Specifying the fc fc-name is required. When a packet matches the rule, the
forwarding class is only overridden when the fc fc-name parameter is defined on the rule. If
the packet matches and the forwarding class is not explicitly defined in the rule, the
forwarding class is inherited based on previous rule matches.
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
Default Inherit (When fc fc-name is not defined, the rule preserves the
previous forwarding class of the packet.)
priority — The priority parameter overrides the default enqueuing priority for all packets
received on a SAP using this policy that match this rule. Specifying the priority (high or low)
is optional. When a packet matches the rule, the enqueuing priority is only overridden when
the priority parameter is defined on the rule. If the packet matches and priority is not explicitly
defined in the rule, the enqueuing priority is inherited based on previous rule matches.
Default Inherit (When the priority (high or low) is not defined, the rule
preserves the previous enqueuing priority of the packet)
high — The high parameter is used in conjunction with the priority parameter. Setting the
priority enqueuing parameter to high for a packet increases the likelihood to enqueue the
packet when the queue is congested. The enqueuing priority only affects ingress SAP
queuing. When the packet is placed in a buffer on the queue, the significance of the enqueuing
priority is lost.
low — The low parameter is used in conjunction with the priority parameter. Setting the priority
enqueuing parameter to low for a packet decreases the likelihood to enqueue the packet when
the queue is congested. The enqueuing priority only affects ingress SAP queuing. When the
packet is placed in a buffer on the ingress queue, the significance of the enqueuing priority is
lost.
Default Inherit
policer-id — A valid policer-id must be specified. The parameter policer-id references a policer-
id that has already been created within the sap-ingress QoS policy.
Values 1 to 63
Default none
fc: class[.sub-class]
class: be, l2, af, l1, h2, ef, h1, nc
sub-class: 29 characters max
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