Cisco ASR 920 series Configuration Guide Ethernet Router

Maintenance Domain
A maintenance domain is a management space for the purpose of managing and administering a network. A
domain is owned and operated by a single entity and defined by the set of ports internal to it and at its boundary.
The figure below illustrates a typical maintenance domain.
A unique maintenance level in the range of 0 to 7 is assigned to each domain by a network administrator.
Levels and domain names are useful for defining the hierarchical relationship that exists among domains. The
hierarchical relationship of domains parallels the structure of customer, service provider, and operator. The
Carrier Ethernet Configuration Guide (Cisco ASR 920 Series)
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Configuring Ethernet Connectivity Fault Management in a Service Provider Network
Maintenance Domain

Cisco ASR 920 series Specifications

General

Brand	Cisco
Model	ASR 920 series
Category	Network Router
Language	English