¨ RingView for Token Ring User’s Guide
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Contents Who Should Read This Guide ............................................................................................. vii How to Use This Guide........................................................................................................ vii Questions about SPECTRUM Documentation ................................................................. viii Chapter 1 Introduction What Is RingView for Token Ring?................................................................................
vi RingView for Token Ring User’s Guide
Preface This document provides instructions for using RingView for Token Ring, a SPECTRUM application that maps, models and graphically displays the contents of Token Ring LANs. Who Should Read This Guide This guide is intended for SPECTRUM administrators and technicians responsible for determining network configuration and overseeing network operations.
Questions about SPECTRUM Documentation Questions about SPECTRUM Documentation Send your questions, comments or suggestions regarding SPECTRUM documentation to the Technical Communications Department directly via the following internet address: E-MAIL viii spectrum-techdocs@ctron.
Chapter 1 Introduction This chapter provides an overview of RingView for Token Ring functionality and features. What Is RingView for Token Ring? RingView for Token Ring is a SPECTRUM application program that provides enhanced capabilties for modeling and displaying the ring of devices and connections that make up a Token Ring (802.5) LAN. An important feature of the RingView application is that it allows for several different ways of displaying a Token Ring LAN within a SPECTRUM Topology view.
How RingView Works model’s Information view. These tools let you run subsequent discovery sessions on the LAN either manually or automatically. This dialog box also offers options for customizing the display of the ring topology. Examples of all these Topology view options are provided in Chapter 3.
Chapter 2 The RingView Modeling Process This chapter describes the methodolgy used by the RingView application to determine the topology of a Token Ring LAN. Basic Steps The process RingView uses to determine the topology of a given ring is the same whether the application is invoked automatically by AutoDiscovery or through the Manual Discovery option in the RingView Tools dialog box (see Chapter 3). In either case, the first step is to determine which existing models are part of the ring.
Use of MAC Addresses If the set of models collected by the LAN_802_5 model does not include a model that provides access to the complete station list, then RingView attempts to map the ring topology by querying each manageable Token Ring device model in the set to obtain information about its upstream neighbor.
Mapping with Non-Manageable Devices Editing GenTRStn_NM Information communication with the modeled device; thus there is no way for RingView to determine the identity of the device’s upstream neighbor. In fact, for a nonmanageable device, RingView can ascertain nothing beyond the MAC address.
RingView Modeling RingView Modeling Several different model types are used to model Token Ring stations. These model types fall into two basic categories: those that represent devices and those that represent managed applications of devices. Device Model Types RingView does not create models of the actual Token Ring devices. These models are created manually by a user or automatically by the AutoDiscovery application.
Chapter 3 The User Interface This chapter explains how to access and operate the dialog boxes that serve as the user interface for the RingView component of SPECTRUM. Accessing RingView Tools Once a Token Ring LAN has been modeled in SPECTRUM either manually or through a regular AutoDiscovery session, subsequent discovery sessions can be invoked for that LAN through the RingView Tools dialog box, which is accessed from the LAN_802_5 model’s Information view (Figure 3-1).
Accessing RingView Tools Figure 3-1. The Token Ring LAN Information View 132.177.118.0-1 of type LAN_802_5 of Landscape ajax:PrimaryI * File View Help? 802.5 LAN Information View 802.
The RingView Tools Dialog Box Figure 3-2. RingView Tools Dialog Box 132.177.118.0-1 of type LAN_802_5 of Landscape ajax:Primary * File View Help? RingView Tools Discovery Options AutoDiscovery Manual Discovery Prevent Discover Ring No Background Discovery Background Discovery Off Discovery Interval (hrs) 24 Discovery Device Possible Devices Selected Device Network 1 0.0.B8.88.3A.39 .177.118.0-1-0 Network 1 132.177.118.
The RingView Tools Dialog Box Discovery Options Discovery Options The Discovery Options panel at the top of the dialog box lets you start a discovery session for the Token Ring LAN at any time by using the Manual Discovery option, The button that activates this option is labeled Discover Ring unless ring discovery has not yet been invoked for the selected LAN, or unless the topology has changed since the last discovery session, in which cases this button is labeled Discovery Needed.
The RingView Tools Dialog Box Display Settings NOTE As noted in Chapter 2, there is a fundamental incompatability between the ways in which RingView and DECnet treat MAC addresses. RingView’s basic mapping methodology depends on the MAC address being used as a constant and unique node identifier. However, the MAC address of a DECnet station may change whenever the DECnet protocol is started or restarted.
RingView Displays LAN_802_5 model can NOT be destroyed, even if it was created manually rather than by RingView. Also, no annotations, manual repositionings of icons, or other edits are permitted when this mode is in effect. In Normal mode, the display may be edited in the same manner as any regular SPECTRUM Topology view. However, any icon position changes or manual pipe connections you make in Normal mode will not be preserved if you then switch back to RingView mode.
RingView Displays options selectable from the Display Settings panel of the RingView Tools dialog box. Figure 3-3. MAC Entities in Ring Configuration 132.177.118.0-1 of type LAN_802_5 of Landscape ajax:Primary * File View Help? Network 1 HubCSITR Network 1 TRHubStack 0.0.B8.86.5B 132.117.56.38 STN HubCSITRMM Cabletron Network 1 HubCSITR 9032585 E1 132.117.56.
RingView Displays Figure 3-4. MAC Entities in Condensed Configuration 132.177.118.0-1 of type LAN_802_5 of Landscape ajax:Primary * File View Help? 132.117.56.38 132.117.56.42 HubCSITRMM HubCSITRXI Network 1 TRHubStack Network 1 HubCSITR Network 1 0.0.B8.86.
RingView Displays Figure 3-5. Physical Devices in Ring Configuration yp * File p j View y Help? 132.117.56.16 HubCSITRMM4 132.117.56.104 Micro-42T 0.0.B8.86.5B 132.117.56.38 STN HubCSITRMM Cabletron 132.117.56.49 HubCSITRMM2 9032585 E1 132.117.56.
RingView Displays The User Interface 3-10 RingView for Token Ring User’s Guide
Index A M Annotations 3-6 Audience vii AutoDiscovery 1-1, 2-1, 3-1, 3-4 MAC address 2-2, 2-3 MAC Entities 3-6, 3-7, 3-8 Managed Application Model Types 2-4 Manual Discovery 2-1, 2-3, 3-4 B Background Discovery 3-4 N C Non-manageable devices 2-2 Normal mode 3-5 Notice iii Cabletron’s Token Ring MIBs 1-1, 2-1, 2-4 Collects relation 2-1 Condensed Configuration 3-8 ctDot5 1-1, 2-1 ctDot5PhysMgmt 1-1, 2-1 Customizing the display 1-2, 3-4 D DECnet 2-2, 3-4 Default values 3-4 Device Model Types 2-4 Displa
U upstream neighbor 2-2, 2-3 User interface 3-1 V Virus Disclaimer iv Index 2 RingView for Token Ring User’s Guide
