Specifications

Glossary–9

management agent

See SNMP agent.

management information base

A dynamic, virtual collection of data about a managed object. The managed object

provides this data to the network management station (NMS) which gathers the val-

ues from the managed object and loads them into the MIB representing the object.

master mode

A pair of repeater ports (primary and secondary) that control a redundant link.

Because the remote ports, or responder ports, to which the master ports are con-

nected must be on the same LAN or are otherwise bridged together, only one of the

master ports may be enabled at a time.

MAU (Ethernet)

Media Access Unit. When used in the context of network modules such as repeaters

and PORTswitches, this acronym stands for media access unit. These devices con-

vert the standard AUI to media types such as UTP, fiber optic, or ThinWire.

MAU (Token Ring)

When used in the context of token ring LANs and modules, this acronym stands for

multistation access unit.

MIB

See Management Information Base.

MMJ connector

A jack used for connecting an EIA 423 data cable to a DECserver 90L or 90L+.

module

An interchangeable unit that provides functionality and interconnection to a local

area network (LAN) through the hub.