3 x MAC Control Frames
N/A??“Link Aggregation Control Protocol (LACP)
N/A??“IEEE 802.1 x Port Authentication
N/A??“Generic Attribute Registration Protocol
(GARP)
N/A??“Spanning Tree Protocol (STP)
Only 1 CoS Supported.
Frame Delay < 30 ms (95th percentile),
Frame Jitter: N/S10, Frame Loss < 0.1%
Service Attribute Values and
Parameters
ISP
POP
Service
Multiplexing
UNI
2
UNI
1
MEN
EVC 2
EVC 1
UNI
3
76 Chapter 2
applications and generate new value-added and higher premium offerings literally
every day. Currently, it is estimated that there are well over 500 different Ethernet
services being offered by over 200 Carriers in the U.S. alone.
Carrier Ethernet: The Enablers
In this section, the developments of each of the attributes are presented. It is impractical
to discuss these in any detail here, as several standards are involved, but they are
highlighted with the progress to date. Some selective developments are, however, elaborated
in reasonable depth given their importance in the enabling of Carrier Ethernet.
The MEF??™s prominent role in enabling Carrier Ethernet is shown in Figure 2.17,
which highlights the specifications and specific attributes being addressed in the areas
of Architecture, Management, Services, and Testing Measurement.
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