For each UNI pair, this EVC service attribute specifies
whether broadcast frames are to be discarded, delivered conditionally (and the specific
conditions), or unconditionally,.
In general, all Ethernet services support unicast, multicast, and broadcast service
frames.
Layer 2 Control Protocol Processing This service attribute can be applied at the
UNI or per EVC. There are many Layer 2 control protocols that can be employed (such
as IEEE 802.3x MAC control frames, IEEE 802.1x Port Authentication, Spanning Tree
Figure 2.8 MEF-defined bandwidth profiles (Source: MEF)
UNI
EVC1
EVC2
EVC3
Ingress Bandwidth
Profile Per Ingress UNI UNI
EVC1
EVC2
EVC3
Ingress Bandwidth
Profile Per EVC1
Ingress Bandwidth
Profile Per EVC2
Ingress Bandwidth
Profile Per EVC3
UNI EVC1
CE-VLAN CoS 6 Ingress Bandwidth Profile Per CoS ID 6
CE-VLAN CoS 4
CE-VLAN CoS 2
Ingress Bandwidth Profile Per CoS ID 4
Ingress Bandwidth Profile Per CoS ID 2
EVC2
(1) At the UNI Level (2) At the EVC Level
(3) At the CE-VLAN Level
68 Chapter 2
Protocol, Link Aggregation Control Protocol, and so on). The Service Provider can, using
this attribute, decide whether to process or discard these protocols at the UNI or pass
them to the EVC to discard or tunnel them.
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