Alcatel-Lucent 7210 SAS E OS Quality Of Service Manual page 147

Service access switch
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For calculating the number of classification entries per FC for a SAP in a VLL service, the
following rules apply:
Apply the rules to determine the number of classification entries per FC (only for the FCs in use)
using the following equation:
C(i)=ΣFCi(unicast)+FCi(multicast)+FCi(broadcast)+FCi(unknown_unicast)
i=nc,h1,ef,h2,l1,af,l2,be
where FCi (unicast), FCi (multicast), FCi (broadcast), and FCi (unknown-unicast) are set to a
value of 1 if this FC uses classifier to identify traffic-type unicast, multicast, broadcast and
unknown-unicast respectively.
FCi (unicast), FCi (multicast), FCi (broadcast), and FCi (unknown-unicast) are set to a value of 0
if this FC does not use a classifier to identify this traffic-type.
If the user does not configure meters explicitly for the FC, then the default unicast meter and the
default multicast meter are used. Therefore, by default, two classification entries in hardware are
required by a FC.
Taking into account the number of match criteria and the number of FCs used, use the equation
given below to arrive at total number of classification entries per policy, for example:
TC=Σ E(i)* C(i)
i=nc,h1,ef,h2,l1,af,l2,be
where:
7210 SAS-E OS Quality of Service Guide
If a FC is in use and is created with an explicit unicast meter, an explicit broadcast meter,
and an explicit multicast meter, use these meters for unicast, broadcast and multicast
traffic types respectively. Unknown unicast traffic type will use the explicitly defined
multicast meter. This requires three classification entries in hardware.
Multipoint meters cannot be used. Multipoint meter configured in a policy is not used
when the policy is applied to a SAP in an Epipe service.
All FCs in use and associated with a meter always use the unicast meter. Therefore, all
FCs in use utilize only one classification entry in the hardware.
E(i) is the number of match-criteria entries that classify packets to FCi. For 7210
platforms, the maximum number of classification entries per policy can be 64 (including
default).
C(i) is the number of classification entries that are required by FCi to identify different
traffic types.
Service Egress/Ingress QoS Policies
Page 147

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