8250, 8260, and 8265 management is performed by means of the Simple Network Management Protocol (SNMP). Modules with firmware that implements SNMP support SNMP management. In Nways Manager-LAN documentation, these modules are called agents.
8250, 8260, and 8265 Device Manager recognizes the following agents:
Management modules are the basis of 8250 network management. They provide a management interface that can be accessed locally through a terminal connected to the serial port (out-of-band) or inband through the network. 8250 Management modules are available for Ethernet (EMM), Token-Ring (TRMM), and FDDI (FMM) protocols. Refer to the Installation and Operating Guides shipped with your Management modules for a complete description of specific features supported by the software version of your module.
Functions common to all supported 8250 Management modules include:
The Management modules control the configuration of all the modules in a hub. Whenever a Management module is present and operating in a hub, the software management settings for individual media modules determine the configuration. The DIP switch settings are ignored.
An 8250 Management module can manage only one network at a time. If you need to simultaneously monitor traffic on two or more networks, you must add additional Management modules. If you need simultaneous management of multiple networks, you should dedicate a Management module to each network. When the hub includes more than one Management module, one of these modules becomes the master and handles all control and configuration functions. The Master Management module is chosen on the basis of an assigned mastership priority. If multiple Management modules have the same priority, an arbitrary selection is automatically made.
For box management, any type of Management module can be used to control modules for any network supported by the 8250 Hubs. For MAC-specific processing, such as gathering statistics, a dedicated Management module of the same LAN type is needed. In other words, an EMM cannot gather statistics for a Token-Ring module. Likewise, a TRMM or FMM cannot gather statistics for an Ethernet module.
Distributed Management Modules (DMMs) are the basis of 8260 network management. They provide a management interface for the same functions as for 8250 Management modules, plus the following:
The 8260 Distributed Management Module (DMM) is a Management module designed to work in 8260 Hubs. The DMM enables you to fully manage and control your hub down to port level. In addition, the DMM contains monitoring and control capabilities (when used with IBM Network Monitor Cards) which allow you to configure and check the status of all Token-Ring and Ethernet modules in an 8260 Hub.
The main features of the DMM include all the features available for 8250 Management modules. Also, the DMM:
E-MAC and HE-EMAC cards can be physically attached to any 8260 media module or Ethernet Distributed Management module installed in the hub. T-MAC and H-TMAC cards attach to any 8260 Token-Ring media module. These protocol-specific cards monitor all activity on a network, gathering statistics and reporting them to the protocol-independent Management module.
You can install all 8250 modules, except for Controller modules, in an 8260 Hub by using an adapter kit.
The 8260 ATM Control Point and Switch (A-CPSW) module Version 2.3 or higher allows you to manage all ATM resources in an 8260 hub using Nways Manager-LAN. The A-CPSW module manages all ATM modules by means of a subset of the DMM MIB installed in the module and is called the ATM Management Module (AMM).
An A-CPSW module Version 2.3 or later can be the master management module in an 8260 hub only if no DMM or Advanced Controller module is installed.
The 8265 Control Point and Switch (CPSW) module operates like the 8260 ATM Control Point and Switch (A-CPSW) module. This means that the 8265 CPSW acts as the master management module and manages all ATM modules by means of a subset of the DMM MIB. This allows 8265 ATM switches to be managed by Nways Manager-LAN.