It is possible to classify traffic directly to a policer, independent of the policer/queue assigned to the traffic’s forwarding class. This is supported at SAP ingress by configuring a policer in the action statement: ip-criteria, ipv6-criteria, or mac-criteria.
The standard mechanisms are still used to assign a forwarding class to the related traffic, and this forwarding class continues to be used for QoS processing at egress.
The use of explicitly configured broadcast, unknown, or multicast policers is not supported. QPPB processing takes precedence over this feature.
This could be used, for example, when it is required that ingress OAM traffic is not subject to the same QoS control as other customer traffic on a specific SAP. The OAM traffic could be classified based on its source MAC address (for example, with an OUI of 00-xx-yy as shown in Figure: Ingress criteria classification directly to policer) and directed to policer 1 while the remainder of the customer’s traffic is processed using ingress queue 1.
The configuration would be as follows:
sap-ingress 10 create
queue 1 create
exit
queue 11 multipoint create
exit
policer 1 create
exit
mac-criteria
entry 10 create
match
src-mac 00-xx-yy-00-00-00 ff-ff-ff-00-00-00
exit
action policer 1
exit
exit
exit