SAPs
Page 504 7210-SAS M Services Guide
CPU QoS for IES access interfaces in network mode
Traffic bound to CPU received on IES access interfaces are policed/rate-limited and queued into
CPU queues. The software allocates a policer per IP application or a set of IP applications, for
rate-limiting CPU bound IP traffic from all IES access SAPs. The policers CIR/PIR values are set
to appropriate values based on feature scaling and these values are not user configurable. The
software allocates a set of queues for CPU bound IP traffic from all IES access SAPs. The queues
are either shared by a set of IP applications or in some cases allocated to an IP application. The
queues are shaped to appropriate rate based on feature scaling. The shaper rate is not user
configurable.
NOTE: The instance of queues and policers used for traffic received on network port IP interfaces
is different for traffic received from access port IP interfaces. Additionally the network CPU
queues are accorded higher priority than the access CPU queues. This is done to provide better
security and mitigate the risk of access traffic affecting network side.
Filter Policies
In network mode, only IP filter policies can be applied to IES services.
In access-uplink mode, only IP filter policies can be applied to IES service when either access SAP
or access-uplink SAP is associated with the service.
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