The tables defined by this MIB module contain a collection of managed objects that are general in nature and apply to an edge device in an organizations network, e.g. a Metro Ethernet network. An edge device, is a customer located equipment, this is the first device which will connect the Service Provider's network and map subscriber traffic into the next layer. The access media could be either CAT5 or fiber. The access device (edge device) can be designed for DSL, Ethernet or other technologies, however, this MIB is designed for Ethernet. Terminology: UNI - User to Network Interface NNI - Network to Network Interface. ENI - Enhanced Network Interface. Enhanced UNI port. module/device - In an environment (specifically, in an SNMP context) consisting of a single chassis which can contain multiple cards, the term 'module' refers to a card and the term 'device' refers to the whole chassis. In an environment where multiple chassis are 'stacked' together, the term 'module' refers to a chassis and the term 'device' refers to the whole stack. In an environment containing only a single chassis without removable cards, the terms 'device' and 'module' both refer to the chassis and its contents.