ZyXEL Elite 2864I User Guide - Page 205

Chapter 17 NETWORK MANAGEMENT CAPABILITY When there are several modems installed at different places forming a modem network, 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 central 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 System (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 controller 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 network. 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 between 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. 17-1