Service Egress and Ingress QoS Policies
Quality of Service Guide 241
A policer defined within the sap-ingress policy is not actually created on an ingress SAP or a
subscriber using an sla-profile where the policy is applied until at least one forwarding type (unicast,
broadcast, unknown or multicast) from one of the forwarding classes is mapped to the policer. If
insufficient policer resources exist to create the policer for a SAP or subscriber or multi-service site or
ingress policing is not supported on the port associated with the SAP or subscriber or multi-service site,
the initial forwarding class forwarding type mapping will fail.
The multicast-policer command is ignored for instances of the policer applied to SAPs subscribers or
multi-service site where broadcast packets are not supported.
When the multicast forwarding type within a forwarding class is mapped to a policer, the multicast
packets classified to the sub-classes within the forwarding class are also mapped to the policer.
The no form of this command is used to restore the mapping of the multicast forwarding type within
the forwarding class to the default multipoint queue. If all forwarding class forwarding types had been
removed from the default multipoint queue, the queue will not exist on the SAPs subscribers or multi-
service site associated with the QoS policy and the no multicast-policer command will cause the
system to attempt to create the default multipoint queue on each object. If the system cannot create the
queue on each instance, the no multicast-policer command will fail and the multicast forwarding type
within the forwarding class will continue its mapping to the existing policer-id. If the no multicast-
policer command results in a policer without any current mappings, the policer will be removed from
the SAPs and subscribers associated with the QoS policy. All statistics associated with the policer on
each SAP and subscriber will be lost.
Parameters policer-id — When the forwarding class multicast-policer command is executed, 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
fp-redirect-group — Redirects a forwarding class to a forwarding plane queue-group as
specified in a SAP QoS policy.
unknown-policer
Syntax unknown-policer policer-id [fp-redirect-group]
no unknown-policer
Context config>qos>sap-ingress>fc
Description Within a sap-ingress QoS policy forwarding class context, the unknown-policer command is used to
map packets that match the forwarding class and are considered unknown in nature to the specified
policer-id. The specified policer-id must already exist within the sap-ingress QoS policy. While the
system is determining the forwarding class of a packet, it is also looking up its forwarding destination
based on the ingress service type and the service instance forwarding records. If the service type is
VPLS and the destination MAC address is unicast but the MAC has not been learned and populated
within the VPLS services FDB, the packet is classified into the unknown forwarding type.
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