USING THIS GUIDEThe User’s Guide is divided into the following parts:S YSTEM O VERVIEWWe begin with an overview of bridging, routing, and specific CyberSWITCH features. Next, weprovide an overview for both the system software and hardware.S YSTEM I NSTALLATIONIn this section of the User’s Guide we provide guidelines for ordering ISDN service in the US, and astep-by-step description of installing hardware and upgrading software.BASIC CONFIGURATIONWe define basic configuration as the configuration needed by most devices. These are the areas ofconfiguration that will get your system up and running. Note that not all configuration steps in thispart are required. For example, if you are only using bridging, you will have no need to completethe configuration steps included in the chapter titled Configuring Basic IP Routing.S ECURITY C ONFIGURATIONThe CyberSWITCH provides a great variety of security options. For example, you may use devicelevel security, user level security, or if preferred, no security. You may also perform authenticationof a device/user in different ways. The security information may be stored on several differenttypes of databases, either locally or on a variety of remote databases.System security also allows the configuration of administrative session (Telnet session)enhancements. This provides secure access to the system along with flexible control.A DVANCED CONFIGURATIONWe define advanced configuration as a way to fine tune your system, or to configure options thatare not necessarily needed by the majority of devices. For example, use this section to configure analternate access, or to set up SNMP to manage your system.TROUBLESHOOTINGTroubleshooting begins with information for verifying your system installation, and continueswith steps to take if there are problems with the installation. Next, it includes a description ofsystem LED indicators, followed by system messages and trace messages. Each message listing inthese chapters provides the message itself, a message definition, and where appropriate, possiblecorrective actions.S YSTEM M AINTENANCEIn this section, we provide information to help you maintain your CyberSWITCH once it isoperating. System maintenance information includes information regarding remote management,a chapter on both the system commands and the system statistics, and routine maintenanceprocedures.