Class Fair Hierarchical Policing (CFHP)
Quality of Service Guide 853
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<root>
configure
qos
sap-egress 3 create
-------------------------------------------------------------------------------
*A:Dut-A>config>qos>sap-egress$ info
----------------------------------------------
queue 1 create
exit
queue 2 create
exit
policer 2 create
exit
fc ef create
policer 2 queue 2
exit
----------------------------------------------
To a local queue as in "queue 2" above, both a policer and also a forwarding class can be
concurrently mapped as shown below:
*A:Dut-A>config>qos>sap-egress$ info
----------------------------------------------
queue 1 create
exit
queue 2 create
exit
policer 2 create
exit
fc af create
queue 2
exit
fc ef create
policer 2 queue 2
exit
----------------------------------------------
A queue resource is allocated whenever there is either an fc or a policer referencing it. The
local queue is freed when there are no references to it. The local queue cannot be deleted
when it is being referenced. Exceed profile traffic from the policer will be counted as out-of-
profile traffic in the egress local queues.
Egress Subscriber CFHP Queuing
When a subscriber packet is mapped to a child policer through the SAP egress QoS policy.
The actual egress queue group is derived from the subscriber host identification process
within the subscriber management module, otherwise the default queue-group is used. This
feature applies to the 7450 ESS only.
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