ZyXEL Communications NetAtlas, User Manual

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NetAtlas EPON Manager User’s Guide
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H A P T E R
1
Introducing the EMS
This chapter introduces the UNIX version of the EMS.
1.1 Element Management System (EMS)
Overview
An Element Management System (EMS) is part of a Network Management System
(NMS). A Network Management System (NMS) is used to manage a network and
the communication between network elements. A network element can be a
physical piece of equipment on the network, the components of a device on the
network, or parts of the network itself. An EMS is used to manage one or more
network elements of a specific type. This is illustrated in the following example.
Figure 1 Relationship Between NMS, EMS, and Network Elements
In this example, network administrators use the NMS (A) to monitor and manage
the whole network. They use the EMS (B) to manage and monitor the EPON
devices (C) in the network.
The NetAtlas EPON Manager Element Management System (“EMS”) retrieves
management information from devices using Simple Network Management
Protocol (SNMP, RFC 1901). The EMS integrates with HP OpenView Network Node
A
B
C
Internet