(MEF work underway)
?– While fault management has been well defined, it is yet to be implemented in commercial
equipment solutions.
Quality of Service
?– Topology discovery tools in Network Management Systems to support Connection
Admission Control (CAC) in an Ethernet network.
NOTE CAC is usually provided by Service Provider Provisioning systems, and so the
Network Management systems should coordinate with Provisioning systems to ensure
the delivery of stringent QoS.
?– A distributed control plane is required to support large Carrier Ethernet networks.
?– CoS awareness in Layer 1 transport devices in access networks is required to
preclude any speed mismatches.
102 Chapter 2
Standardized Management
?– Standards available but need to be implemented in commercial solutions (most of
them support pre-standard versions)
?– Require enhanced version of Link Aggregation that distributes Ethernet frames
based on VLAN ID (not just on MAC/IP addresses; this forces service-related and
associated OAM frames are pinned to same links through out the network).
As should be clear, some challenges are already being identified by forward looking
Service Providers such as Verizon; in most cases, it must be noted that proprietary solutions
have been adopted in the interim to address the challenges, as to not impede the
progress of Carrier Ethernet deployment.
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