Example 9

Example


sap-ingress 10 create
     num-qos-classifiers 256
     meter 1 create
     exit
     meter 11 multipoint create
     exit
     meter 3 create
     exit
     meter 4 create
     exit
     fc be create
          meter 1
          broadcast-meter 11
          mulitcast-meter   4
     exit
     fc af create
          meter 3
          broadcast-meter 11
          multicast-meter   4
     exit
     default-fc be
     ip-criteria  dscp-only
      entry 1  create
            match dscp cp1
            action fc af
      exit
      entry 2  create 
            match dscp cp2
            action fc af
      exit
      entry 3 create
            match dscp cp3
            action fc af
      exit
      entry 4  create
            match dscp cp4
            action fc af
      exit
      entry 5  create
            match dscp cp5
            action fc af
      exit
      entry 6  create
            match dscp cp6
            action fc af
      exit
      entry 7   create
            match dscp cp7
            action fc af
      exit
      entry 8   create
            match dscp cs1 
            action fc af
      exit
      entry 9   create
            match dscp cp9
            action fc af
      exit
      entry 10   create
            match dscp af11
            action fc af
      exit
      entry 11   create
            match dscp cp11 
            action fc af
      exit
      entry 12   create
            match dscp af12
            action fc af
      exit
      entry 13   create
            match dscp cp13
            action fc af
      exit
      entry 14   create
            match dscp af13
            action fc af
      exit
      entry 15   create
            match dscp cp15
            action  fc af
      exit
      entry 16   create
            match dscp  cs2
            action fc af
      exit
      entry 17   create
            match dscp cp17
            action fc af
      exit
      entry 18   create
            match dscp af21
            action  fc af
      exit
      entry 19   create
            match dscp cp19 
            action fc af
      exit
      entry 20  create
            match dscp af22 
            action fc af
      exit
      entry 21   create
            match dscp cp21 
            action fc af
      exit
      entry 22   create
            match dscp af23 
            action  fc af
      exit
      entry 23   create
            match dscp cp23
            action fc af
      exit
      entry 24   create
            match dscp cs3
            action  fc af
      exit
      entry 25   create
            match dscp cp25
            action fc af
      exit
      entry 26   create
            match dscp af31
            action  fc af
      exit
      entry 27   create
            match dscp cp27 
            action fc af
      exit
      entry 28   create
            match dscp af32
            action fc af
      exit
      entry 29   create
            match dscp cp29
            action fc af
      exit
      entry 30   create
            match dscp af33
            action fc af
      exit
      entry 31   create
            match dscp cp31 
            action fc af
      exit
      entry 32   create
            match dscp cs4
            action fc af
      exit
      entry 33   create
            match dscp cp33
            action fc af
      exit
      entry 34   create
            match dscp af41
            action fc af
      exit
      entry 35   create
            match dscp cp35
            action fc af
      exit
      entry 36   create
            match dscp af42
            action fc af
      exit
      entry 37   create
            match dscp cp37
            action  fc af
      exit
      entry 38   create
            match dscp af43
            action fc af
      exit
      entry 39   create
            match dscp cp39 
            action fc af
      exit 
      entry 40   create
            match dscp cs5
            action fc af
      exit
      entry 41   create
            match dscp cp41
            action  fc af
      exit
      entry 42   create
            match dscp cp42 
            action fc af
      exit
      entry 43    create
            match dscp cp43
            action  fc af
      exit
      entry 44   create
            match dscp cp44 
            action fc af
      exit
      entry 45    create
            match dscp cp45
            action fc af
      exit
      entry 46   create
            match dscp ef 
            action  fc af
      exit
      entry 47   create
            match dscp cp47 
            action  fc af
      exit
      entry 48  create
            match dscp nc1
            action fc af
      exit
      entry 49 create
            match dscp cp49 
            action fc af
      exit
      entry 50 create
            match dscp cp50 
            action fc af
      exit
exit
exit

In the example above, assuming the policy is attached to a SAP in a VPLS service, the following number of classification entries per FC:

FCnc = 0 + 0 + 0 + 0 = 0 FCh1 = 0 + 0 + 0 + 0 = 0 FCef = 0 + 0 + 0 + 0 = 0 FCh2 = 0 + 0 + 0 + 0 = 0 FCl1 = 0 + 0 + 0 + 0 = 0 FCaf = 1 + 0 + 1 + 0 = 3

Because FCaf uses unicast meter, an entry is needed to identify these traffic types explicitly. Another entry is needed to classify broadcast, multicast and unknown-unicast traffic type to the same FC and use the default meter ‟11”.

FCl2 = 0 + 0 + 0 + 0 = 0 FCbe = 1 + 1 + 1 + 0 = 3

Because FCbe uses unicast, broadcast and multicast meter, three entries are needed to identify these traffic types explicitly. Unknown-unicast traffic type is classified using the same entry as multicast traffic type and uses the same meter.

Using the equation, calculate the total classification entries used by this policy, as follows:

TC = (0 * 0)nc + (0 * 0)h1 + (0 * 0)ef + (0 * 0)h2 + (0 * 0)l1 + (50 * 3)af + (0 * 0)l2 + (1 * 3)be = 153

The number of meters used in this policy = 4.

Hence, in this example num-qos-classifiers 256 is used (maximum of (153, (2 * 4)) = 153, rounded off to the next multiple of 2 will be 154).

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

Using the equation, calculate the total classification entries used by this policy, as follows:

TC = (0 * 0)nc + (0 * 0)h1 + (0 * 0)ef + (0 * 0)h2 + (0 * 0)l1 + (50 * 1)af + (0 * 0)l2 + (1 * 1)be = 51

The number of meters used in this policy = 2.

Hence for Epipe SAP it is recommended to define another sap-ingress policy with num-qos-classifiers 64 is used (that is, maximum of (51, (2 * 2)) = 51, rounded off to the next multiple of 2 will be 52).