Example 2a (default multipoint meter "11" is not used)

Example


sap-ingress 10 create
     description  ‟example-policy-1”
     num-qos-classifiers  8
     
     meter 1 create
          rate cir 0 pir max
     exit
     meter 3 create
          rate cir  100 pir 100
     exit
     meter 2 create
          rate cir 1 pir 20
     exit
     scope template
     default-fc be
     fc be  create
          meter  3
          broadcast-meter 2
     exit
     fc af  create
          meter  3
          broadcast-meter 2
     exit
     fc l1  create
          meter  3
          broadcast-meter 2
     exit
     fc h2  create
          meter  3
          broadcast-meter 2
     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

In the preceding example, assuming the policy is attached to a SAP in a VPLS service, classification entries used per FC as:

FCnc = 0 + 0 + 0 + 0 = 0 FCh1 = 0 + 0 + 0 + 0 = 0 FCef = 0 + 0 + 0 + 0 = 0 FCh2 = 1 + 0 + 1 + 0 = 2

Because FCh2 uses unicast meter for unicast, multicast, and unknown-unicast traffic, and broadcast meter for broadcast traffic, two entries are needed.

FCl1 = 1 + 0 + 1 + 0 = 2 FCaf = 1 + 0 + 1 + 0 = 2 FCl2 = 0 + 0 + 0 + 0 = 0 FCbe = 1 + 0 + 1 + 0 = 2

Using the above equation, to get the total classification entries used = 8 (since three explicit match criteria entries map to each of FC H2, L1, and AF along with a default classification rule for BE).

The number of meters used = 2 (because FCs use only meter ‟2” and meter ‟3”).

Hence, in this example num-qos-classifiers 8 is used (that is, maximum of (8, (2*2))).

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

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 the above equation, to get total classification entries used = 4 and Meters used = 1.

As can be seen here, using the same policy for Epipe SAP can lead to inefficient use of resources. Hence, it is recommended to create a different policy with the required number of resources (that is, with num-qos-classifiers 4)