Whether they apply to only the UNI or EVC or both is identified in the brief
descriptions that follow.
Ethernet Physical Interface At the UNI, the Ethernet physical interface has several
service attributes.
Physical Medium This UNI service attribute specifies the physical interface defined
by the IEEE 802.3-2000 standard. Examples are 10BaseT, 100BaseSX, 1000BaseLX,
and so on.
Speed This UNI service attribute specifies the standard Ethernet speed??”either
10 Mbps, 100 Mbps, 1 Gbps, or 10 Gbps.
Mode This UNI service attribute specifies whether the UNI supports full or half
duplex14 and can provide auto-negotiation.
MAC Layer This UNI service attribute specifies which MAC layer is supported, i.e.,
as specified in the IEEE 802.3-2002.
Traffic Parameters/Bandwidth Profile The MEF has defined the Bandwidth Profile service
attribute, which is associated with every Ethernet service and can be applied at
the UNI or for an EVC. When there are multiple services associated with a UNI, there
is a corresponding Bandwidth profile associated with each of these services.
A Bandwidth profile specifies a limit on the rate at which Ethernet frames can traverse
the UNI associated with an Ethernet service.
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