Class Fair Hierarchical Policing (CFHP)
Quality of Service Guide 861
Policer Interaction with Initial Profile, Discard
Eligibility, and Ingress Priority
Packets that are offered to an ingress policer may have three different states relative to initial
profile:
• undefined—Either the forwarding class or sub-class associated with the packet is not
explicitly configured as profile in, profile out or de-1-out-profile is enabled and the
Dot1P DE bit is set to zero.
• in-profile—The forwarding class or sub-class associated with the packet is
configured as profile in.
• out-of-profile—The forwarding class or sub-class associated with the packet is
configured as profile out or de-1-out-profile is enabled and the Dot1P DE bit is set to
1.
Ingress policed packets are not subject to ingress queue CIR profiling within the ingress
policer output queues. While the unicast and multipoint shared queues used by the system for
ingress queuing of policed packets may have a CIR rate defined, this CIR rate is only used
for rate based dynamic priority scheduling purposes. The state of the CIR bucket while
forwarding a packet from a policer-output-queues shared queue will not alter the packets
ingress in-profile or out-of-profile state derived from the ingress policer.
Egress Soft-In-
Profile
Green below
CBS
Yellow at or
above CBS
Green below
2xCBS
Yellow at or
above 2xCBS
Egress Soft-Out-Of-
Profile
Green below
CBS
Yellow at or
above CBS
Green below
CBS
Yellow at or
above CBS
Egress Profile In Always Green Green below
2xCBS
Yellow at or
above 2xCBS
Egress Profile Out Always Yellow Always Yellow
Table 74: Effect of Profile-Capped Mode on CIR Output (Continued)
CIR Setting Initial Profile State Normal Mode Capped
Profile Mode
Notes
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