ZyXEL Communications 2864 Series, User Manual, Page: 205 / 267

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Chapter 17
NETWORK MANAGEMENT CAPABILITY
When there are several modems installed at different places forming a modem net-
work, it is desirable to monitor and control all of the modems and modem links
from a central location. When there are hundreds of modems installed at one cen-
tral location, it is also desirable to control and monitor all of the modems from the
desk of a computer workstation. We call this a Modem Network Management Sys-
tem (MNMS). In this chapter, we briefly describe the ZyXEL MNMS capability.
For a detailed description, please refer to the rack's user manual and the ZyView
NMS software's operation manual.
ZyXEL Modem Network Management System
ZyXEL's MNMS is centered around its rack system. Each rack chassis has a con-
troller card that controls all of the modem cards in the rack and interfaces to the
central NMS control station. A simple twisted pair wiring can be used to link all of
the central site racks to a control station which is usually a PC station running the
ZyView NMS software under Microsoft Windows.
Hierarchical Modem Network
ZyXEL MNMS can control and monitor a hierarchical (tree type) modem net-
work. There is a secondary channel that will pass NMS information to and from
the remote modem. The NMS information can also be passed to a remote site with
a tandem connection to the central site as long as the tandem site(s) is a ZyXEL
rack.
Distributed Management
Any site with a ZyXEL rack(s) can connect a PC workstation running ZyView and
can control and monitor all the hierarchical nodes under it. Usually, control down
the modem hierarchy is through the secondary channel attached to any existing
modem link between two modem sites. Alternatively, a dedicated modem link be-
tween two sites with racks can be assigned to pass NMS information and it will be
much faster than a communication link using secondary channels. Two sites with
many racks each can also link their NMS in this way.