Example 1a (default multipoint meter 11 is not used)

sap-ingress 10 create
description  ‟example-policy”
num-qos-classifiers 4
meter 1  create
rate cir 0 pir max
exit
meter 3 create
rate cir 100 pir 100
exit

scope template

default-fc  be

fc be  create
meter 3
exit
fc af  create
meter 1
exit
fc l1  create
meter 3
exit
fc h2  create
meter 3
exit
mac-criteria dot1p-only
entry 1 create
match dot1p 7
action fc af
exit
entry 2  create
match dot1p 5
action fc l1
exit
entry 3  create
match dot1p  6
action fc h2
exit
exit
exit

In example 1a, assuming the policy is attached to a SAP in a VPLS service, classification entries used per FC use the following computation.

FCnc = 0 + 0 + 0 + 0 = 0
FCh1 = 0 + 0 + 0 + 0 = 0
FCef = 0 + 0 + 0 + 0 = 0
FCh2 = 1 + 0 + 0 + 0 = 1

Because this FC uses unicast meter for all traffic types, an entry to classify all traffic types to this FC explicitly is required.

FCl1 = 1 + 0 + 0 + 0 = 1
FCaf = 1 + 0 + 0 + 0 = 1
FCl2 = 0 + 0 + 0 + 0 = 0
FCbe = 1 + 0 + 0 + 0 = 1

Calculate the total classification entries used by this policy, using the following equation.

TC = (0 * 0)nc + (0 * 0)h1 + (0 * 0)ef + (1 * 1)h2 + (1 * 1)l1 + (1 * 1)af + (0 * 0)l2 + (1 * 1)be = 4
(three explicit match criteria entries are used to map traffic to each of FC H2, FC L1, and FC AF along with a default classification entry for FC BE).

The total number of meters used = 2 (because FCs use meter 1 and meter 3).

In this example, num-qos-classifiers 4 is used (maximum of (4, (2 * 2))). The use of a unicast meter for all traffic-types allows QoS resources to be used efficiently.

If the same policy were used for a SAP in an Epipe service, and all traffic is classified to a unicast traffic type and only unicast meters are used, the following computations are used.

FCnc = 0 + 0 + 0 + 0 = 0
FCh1 = 0 + 0 + 0 + 0 = 0
FCef = 0 + 0 + 0 + 0 = 0
FCh2 = 1 + 0 + 0 + 0 = 1
FCl1 = 1 + 0 + 0 + 0 = 1
FCaf = 1 + 0 + 0 + 0 = 1
FCl2 = 0 + 0 + 0 + 0 = 0
FCbe = 1 + 0 + 0 + 0 = 1

Using this equation, total classification entries used = 4 and meters used = 2.

Using the same policy for Epipe SAPs can lead to inefficient use of resources. Nokia recommends creating a different policy with the required number of resources (that is, with num-qos-classifiers 4).