PRELIMINARY
Technical Description
• Maintenance Intermediate Point (MIP) — An OAM reference point that
reacts to diagnostic OAM frames initiated by MEPs.
• MD Level — A way of distinguishing which MEs belong to the same MD. All
MEs belonging to the same MD share the same MD Level.
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Maintenance Association (MA)
Maintenance Domain (MD)
Network Element
Maintenance End Point (MEP)
Maintenance Intermediate Point (MIP)
MINI-LINK Other Network
Customer Customer
Figure 12 Ethernet Service OAM Network Overview
4.4 Quality of Service
Quality of Service (QoS) is a set of mechanisms that makes it possible to
prioritize Ethernet frames depending on traffic type, and to make sure that
the capacity is sufficient to guarantee a congestion-free network. QoS is an
alternative to overprovisioning the network.
A network is logically separated in an operator domain and one or more
customer domains, as in the example in Figure 13.
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