® Path view User’s Guide
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Contents Preface How This Manual Is Organized ........................................................................................... ix Conventions ............................................................................................................................x Related SPECTRUM Documentation....................................................................................x Other Related Documentation .........................................................................................
Chapter 3 Sample PathView Session Sample PathView Session ..................................................................................................3-1 Full Discovery in Linear Layout/Show Port Icons On ................................................3-2 Full Discovery in Compact Layout/Show Ports Off ....................................................3-4 Launching the Router Path ...................................................................................
Figures Chapter 2 Figure 2-1. Figure 2-2. Figure 2-3. Figure 2-4. Figure 2-5. Figure 2-6. Figure 2-7. Figure 2-8. Figure 2-9. Figure 2-10. Figure 2-11. Figure 2-12. Figure 2-13. Chapter 3 Figure 3-1. Figure 3-2. Figure 3-3. Figure 3-4. Using PathView PathView Control View and Fields ...................................................................... 2-2 Pull-down Menu for the Discover Function ........................................................ 2-3 Pull-down Menu for the Address Type Function ....
Figures vi PathView User’s Guide
Tables Chapter 1 Table 1-1. Introduction to PathView PathView Discovery Phases ..................................................................................
Tables viii PathView User’s Guide
Preface The Application Guide for PathView serves as a reference guide to PathView application software. You can read this manual if you want to construct and view a graphic representation of SPECTRUM’s router path. Initially, you should be familiar with SPECTRUM’s functions as described in the SPECTRUM System User’s Guide and the SPECTRUM System Administrator’s Guide.
Conventions Conventions In this manual, the following conventions are used: • Command names are printed in bold; for example, Clear or Save & Close. • Menu selections to access views are printed in bold; for example, Configuration. • Buttons are represented by a shadowed box; for example: Help • Book or chapter titles are printed in italics; for example, SPECTRUM Operator’s Reference.
Other Related Documentation Other Related Documentation Refer to the following documentation for more information on managing TCP/IP-based networks: LAN Troubleshooting Handbook, Mark Miller (1989, M&T Publishing, Inc.) 2nd Edition, 1993 The Simple Book — An Introduction to Management of TCP/IP-based Internets, Marshall T. Rose, Performance Systems International, Inc., 2nd Edition, 1994 Computer Networks, Andrew S. Tanenbaum, Prentice-Hall, Inc.
Getting Help Getting Help For additional support for SPECTRUM products, or to make comments or suggestions regarding SPECTRUM or this manual, contact Cabletron Systems Technical Support via one of the following means: Location Mail FAX Telephone 603-337-3075 603-337-3500 (*)-44-635-552062 (*)-44-635-580000 Europe Cabletron Systems, Ltd. Network House Newbury Business Park London Road, Newbury Berkshire, England RG13 2PZ E-mail: eurospec@ctron.
Chapter 1 Introduction to PathView This chapter describes SPECTRUM’s PathView application. PathView is a graphical application which operates in conjunction with SPECTRUM to discover and display the path between two devices in the network. General Information PathView provides a visual representation of data packet routing patterns within your network, and can be useful in diagnosing network problems.
PathView Operation Incorrectly Modeled Networks NOTE You may view multiple PathView applications concurrently by double-clicking on the File Menu? selection twice. This opens two PathView Control View windows; you can initiate PathView discovery on one path within each window. Incorrectly Modeled Networks It is recommended that the network topology be correctly modeled by SPECTRUM for PathView to properly find the path between devices. This is accomplished by using the SPECTRUM AutoDiscovery tool.
PathView Operation Router Discovery Router Discovery During Phase 1 discovery, PathView attempts to locate each router along the path between the source and destination, using the same IP packet routing data. PathView utilizes the Simple Network Management Protocol (SNMP) and the IP/ICMP (Internet Control Message Protocols) to discover each successive router in the path. Each router in the path is sometimes referred to as a “hop”.
PathView Operation SPECTRUM Topology Discovery SPECTRUM Topology Discovery During Phase 2, PathView uses the network topology information found in SPECTRUM to discover devices between routers discovered in Phase 1. NOTE Phase 2 discovery is optional; you may disable Phase 2 prior to initiating the discovery process. If Phase 1 router discovery fails, the SPECTRUM topology phase attempts to find the routers and the inter-router devices from the source or last known router on the destination path.
PathView Operation PathView Options PathView Options The PathView user interface allows you to control/set the following options: • • • • 9031292 E4 Discover (Discovery type) - select Full Path or Routers Only to view all devices or routers on the path Path type -select Model Type mode to view the path by model, or select IP mode to view path by IP address Layout - select linear or compact mode to show the path Show Ports - activate Show Ports to display device port information not otherwise provided In
PathView Operation PathView Options Introduction to PathView 1-6 Path View User’s Guide
Chapter 2 Using PathView This chapter describes the PathView user interface and explains the views created by PathView. The two main view components in the user interface for the PathView application are the PathView Control View and the PathView Discovery View. The PathView application initially displays the SPECTRUM PathView Control View, as shown in Figure 2-1. You can enter source and destination addresses, and configure the output display options.
PathView Control View Fields Pull Down Menu Choices Figure 2-1. PathView Control View and Fields SPECTRUM Path View File Discover: Full Path Address Type: IP Example: nnn.nnn.nnn.nnn Source Address Destination Address 132.177.118.24 132.177.118.
PathView Control View Fields Figure 2-2. Pull-down Menu for the Discover Function Full Path Routers Only Graph Only Full Path Select Full Path to initiate full discovery of routers on the path and devices between the routers. This causes both phases of discovery to be utilized. Full Path is the default value. Routers Only Select Routers Only to discover devices acting as routers on the path. Phase 2 topology discovery does not occur when Routers Only is selected.
PathView Control View Fields Figure 2-3. Pull-down Menu for the Address Type Function IP Model Name Layout The Layout toggle offers two options: Compact and Linear. Layout mode can be changed before or after discovery of the path. Figure 2-4 shows a pull-down menu for the layout function. Figure 2-4. Pull-down Menu for the Layout Function Compact Linear Compact The default Compact Mode option wraps the router path around, moving from left towards the right, down, and left again.
PathView Control View Fields Figure 2-5. Compact Mode Router Path with Show Port Icons Button Disabled Path View Source Destination newone Intermediary Rtrs Path Type Status ar4 2 Discovery Complete newone ar1 132.177.118.24 PathNodeAddr Rtr_Cisco VNM NOTE ar4 ar3 Rtr_Cisco Rtr_Cisco If you choose Compact Mode, the ports are listed in a first in-port then out-port basis, on odd rows. Even rows exhibit ports in an out-port then in-port order.
PathView Control View Fields Figure 2-6 illustrates a sample router path in Linear Mode with the Show Port Icon function disabled. Figure 2-6. VNM Router Path in Linear Mode With Show Port Icons Disabled Path View Source Destination 118.24 newone Intermediary Rtrs Path Type 0 Discovery Complete Status newone 132.177.118.23 132.177.118.24 Rtr_Cisco HubCSIEMME VNM Figure 2-7 shows a router path in Linear Mode with Show Port Icons enabled. Figure 2-7.
PathView Control View Fields Buttons/Text Entry Fields Buttons/Text Entry Fields The following sections describe the buttons and text entry fields used in the PathView Control View. Clipboard The Clipboard button function allows you to select a source or destination address or model name from models in other SPECTRUM views. This is accomplished by copying one or more device icons from the clipboard buffer in SPECTRUM into PathView.
PathView Control View Fields Buttons/Text Entry Fields 4. Select a model (showing model type, name, and network/Mac addresses of a device) from the list box to be used as the Source or Destination Address. Click OK. If you click the clipboard and the No Models Found dialog box appears, follow these steps again. Figure 2-9 provides an example of a No Models Found dialog box. Figure 2-9. No Models Found Dialog Box i No models found.
PathView Control View Fields Buttons/Text Entry Fields Find Address Model Name: Model Type: OK Cancel 2. Enter the requested information into the Source and Destination Address text entry fields. You may enter a model or a model type name. If both fields are completed, PathView uses the model name to find the address from the SPECTRUM database. If you do not know the model type name to use, you can click the model type button, and a list box displays all model types.
PathView Control View Fields Buttons/Text Entry Fields The PathView Display View is closed separately from the PathView Control View (by clicking the OK button). NOTE You may terminate the PathView session by simply closing the PathView Display View at any time. This action stops PathView discovery and releases all resources being used by the PathView session. Log Click on this button to display the log window with information being generated by the discovery process.
PathView Control View Fields Buttons/Text Entry Fields Figure 2-11. Path View Status Window SPECTRUM Path View Status LOG_BUFFER USER PREFERENCES: get port begin mh=0xf7fff714 other_mh=0xf7fff710 get_port()first_pof_count = 1 mh = 0x7fff5f4 mth = 0xf7fff53c getting device for mh = 0xf7fff53c read_input()begin, MH = ()xf7fffa64 source_addr = 134.141.67.135 dest_addr = 134.141.67.139 source_mh = 0xf7fffa00 dest_mh = 0xf7fff9fc Source and dest information validated.
PathView Control View Fields Buttons/Text Entry Fields Figure 2-12. PathView Preferences Window SPECTRUM Path View Preferences TimeOut Value: 60 IP Max # of Hops: 30 IP Max Failures: 3 IP Probes/Hop: 1 IP Time Stats OK OK Show Collectors Cancel Cancel Time Out Value This field displays the value PathView allows in seconds before concluding that there is no response. PathView considers this action as a failure and considers the next router.
PathView Control View Fields Show Port Icon (Toggle Switch) IP Max Failures The IP Max Failures field represents the number of consecutive failures for the packet TTL (Time to Live) rate before the router discovery process cancels. The maximum number of failures ranges between 1-10. IP Probes/Hop This field displays the number of packets sent out from a router in an attempt to find the next device on the path.
PathView Discovery View PathView Status Box PathView Discovery View Once you have clicked OK, the PathView Discovery View appears, with the following informational fields: PathView Status Box The PathView status box shows the status of the discovery process during discovery and after its completion. Status Box Fields Status box fields are described below: Source This field shows the machine name, source name, or IP address of the source.
PathView Discovery View Discovery FAILED Figure 2-13. Path with a PathNodeAddr Model and an Unknown Router Landscape 080300000 - VNM ______ - 132.177.118.24 of type ___________ - [400009,b20013] - Com Path View File View Source Model Name newone Net Addr Description Status Destination 132.177.118.24 gby Sys Up Time Intermediary RtrsManufacturer 2 ContactPath Type Discovery Complete Prime App Location Device Type Serial Number newone newone gby 118.24 PathNodeAddr ?.?.?.
PathView Discovery View Discovery FAILED Using PathView 2-16 Path View User’s Guide
Chapter 3 Sample PathView Session This chapter provides three sample sessions for PathView. The following sections describe the procedure for launching three different PathView sessions. Sample PathView Session You can view a router path between your workstation or PC in one area and a node in another area. Depending upon the choice of options previously discussed, you can model different router paths. Figure 3-1 shows routers ar1 - ar6 and two LANs.
Sample PathView Session Full Discovery in Linear Layout/Show Port Icons On Full Discovery in Linear Layout/Show Port Icons On Figure 3-1 shows a Full Path router path showing all routers and devices on a router path, displaying in Linear Layout with Show Port Icons off. Figure 3-1.
Sample PathView Session Full Discovery in Linear Layout/Show Port Icons On Figure 3-2. Full Path Router Path in Linear Layout with Show Port Icons On Path View Source Path Type Status Destination ar1 Discovery Complete ah7 ar1 ON ar3 Hub_CSI_IRBM Rtr_Cisco 2 ar3 Intermediary Rtrs IP 1 ON ETHERNET ETHERNET 8:0:2:4:48:65 8:0:2:4:48:65 134.177.118.23 134.177.118.23 0 port 2.6 ENABLED AUI port 2.
Sample PathView Session Full Discovery in Compact Layout/Show Ports Off 7. Click the Destination Address Clipboard button. The clipboard contains one model (ar3) for this sample router path; you may select other models to copy to the clipboard. 8. Set the Layout choice box value to “Linear” for linear display. 9. Click OK to start the path discovery process.
Sample PathView Session Full Discovery in Compact Layout/Show Ports Off Launching the Router Path You can launch the router path from the SPECTRUM Topology View View pulldown menu. The Find Address option searches for a model by model type to obtain the source and destination addresses. To initiate this process and filter the model type list, follow these steps to replicate this router path. 1. Select PathView from Applications under the View menu. The PathView Control View appears. 2.
Sample PathView Session Full Discovery in Compact Layout/Show Ports Off To select the appropriate model type, follow the steps listed below. 1. Select the model of choice (sample model is ar1) and start PathView from Utilities. The model’s IP address appears in the SPECTRUM PathView window’s Source Address field. 2. Click Find Address under Destination Address to find the destination. The Find Address information view displays Model Name and Model Type. 3. Enter the destination model name, if known.
Sample PathView Session Routers Only in Compact Layout/Show Ports Off Routers Only in Compact Layout/Show Ports Off Figure 3-4 illustrates a PathView router path showing routers only, displaying in Compact Layout with Show Port Icons off. Figure 3-4. Routers Only Router Path in Compact with Show Port Icons Off Path View Source Destination newone Intermediary Rtrs Path Type Status ar4 2 Discovery Complete newone ar1 132.177.118.
Sample PathView Session Routers Only in Compact Layout/Show Ports Off 6. Click the SPECTRUM PathView Clipboard button directly below the Destination Address field. A list box showing all clipboard models appears. 7. Select the model “ar4” from the list and press OK. The Destination Address field now displays the IP address for the ar4 model. 8. Select Routers Only. 9. Select OK after you have confirmed the Layout option is Compact and Show Port Icons is disabled.
Index Symbols "live" method of path discovery 1-3 "No source address found" 2-9 “AGENT-ID” attribute 1-4 “hop” 1-3 “live” discovery 1-3 “No source address found” message 2-9 A AGENT-ID attribute 1-4 AutoDiscovery tool 1-2 C Cabletron IRM2 Hub 3-4 Cancel 2-9 cancelling out of PathView 2-8 Choice boxes 2-1 clipboard buffer 2-7 Clipboard button 2-7 clipboard button 2-7 Clipboard button function 2-7 Close, Save, or Print 2-10 Compact 2-4 Compact Layout 3-4 Compact Mode option 2-4 Compact/Show Port Icons layou
I implementing source/destination addresses 2-8 incorrectly modelled network topology 1-2 interdependencies 1-2 intermediary routers 1-3 Intermediary Rtrs field 2-14 Invalid source/destination address 1-3 IP discovery polling time 1-3 IP Max # of Hops 2-12 IP Max Failures 2-13 IP Probes/Hop 2-13 IP/ ICMP network protocols 1-3 IP/ICMP 1-3 IP/ICMP protocols 1-3 L launching PathView 3-1 launching the PathView application 3-3 Layout field 2-4 Layout toggle 2-4 linear display 3-4 Linear Layout 3-2 Linear Mode o
T TCP/IP Based Networks xiii Text entry fields 2-1 Time Out Value 2-12 Toggle Switches 2-2 toggle switches 2-1 topology discovery failure 1-4 Trademarks i TTL (Time to Learn) 2-13 U Using This Template xi Utilities menu 3-3 V valid source/destination addresses 1-4 View Trace Log 2-13 viewing by IP address 2-3 viewing by Model Name 2-3 Virus Disclaimer i VNM Router Path 2-6 901292 E4 Index 3
Index 4 PathView User’s Guide
