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Cabletron Systems SPECTRUM SEHI100TX-22 User's Manual

1. 2 13 Checking Port Status C 2 14 Checking Statistics 2 16 General Error Statistics c ccccccccsssssssscsscsscsscescsecsecssesscsecasescsaecasescsscsasceseneeas 2 17 The SEHILOOTX Error Priority Scheme eret 2 19 Frames 5tatistiCs s deoa ostrea ree oon e eid aerei 2 20 Managing tbe 2 20 Setting the Polling Int rvals iuiiiieceis ient criteri th ertt cria ebat rir ebbe 2 20 Enabling Disabling de d 2 22 Chapter 3 Link Seg Traps Whatisa Segmentation Dp ec es pane nee Masa t tapa 3 1 Whatis a Link Trap oui pianto ette cU Dat 3 2 Enabling and Disabling Link Seg Traps uM te iat 3 2 Configuring Link Seg Traps for the Repeater eene 3 4 Viewing and Configuring Link Seg Traps for Hub Modules 3 4 Viewing and Configuring Link Seg Traps for Ports ssssssss 3 6 lii Contents Chapter 4 Appendix A Index Repeater Redundancy Setting Network Circuit Redundancy sse 4 1 Configuring a Redundant Circuit sss 4 2 Monitoring Red ndangy eerte initie 4 6 SEHI100TX MIB Structure IETF MIB SUp Prt 1 5 1 tentent
2. 1 A Brief Word About MIB Components and Community Names A 2 Chapter 1 Introduction to SPMA for the SEHI100TX 22 How to use the SEHI User s Guide manual conventions contacting Cabletron Global Call Center SEHI firmware versions supported by SPMA The SEHI100TX 22 is an intelligent repeating Fast Ethernet hub which when combined with the SEH100TX 22 non intelligent stackable hub can provide from 22 to as many as 120 100Base TX Ethernet connections in a single stack Each SEHI100TX 22 and SEH100 TX 22 provides front panel ports for network connections and a rear panel HUBStack Interconnect Bus port for stackable connections The SEHI100TX 22 intelligent stackable hub is designed to manage one or more of the SEH100TX 22 non intelligent stackables It provides 22 100Base TX network ports via RJ45 connectors and one optional user configurable EPIM port which allows for flexible network connection options including SMA or ST fiber optic cable thin coax or AUI cable Although the SEHI100TX 22 is the management device providing full packet and error statistics for the stack it can be located anywhere in the stack Each SEH100TX 22 non intelligent hub provides 22 100Base TX network ports via RJ45 connectors and two optional user configurable EPIM ports Up to four SEH100TX 22s can be included in the stack The entire stack is counted as only one repeater hop The SEHI100TX 22 fully conforms to the IEEE 80
3. Link Seg Traps About Link and Segmentation traps enabling and disabling these traps at the device module and port levels Among the traps which Cabletron devices are designed to generate are traps which indicate when a repeater port gains or loses a link signal when the repeater segments disconnects a port due to collision activity and when a segmented port becomes active again In some networks these Link and Segmentation traps may be more information than a network manager wants to see So SPMA provides you with a means to selectively enable and disable Link and Segmentation traps You can turn traps on and off for all ports on the SEHI100TX all ports on a selected module or modules or for individual ports SPMA does not accept the trap messages that task is left to your network management system See the appropriate network management system documentation for details about viewing trap messages When this utility is used in stand alone mode traps will either be ignored when they return to the workstation from which you are running SPMA for the SEHITOOTX or they will turn up at another management workstation which has been configured to accept traps Note also that regardless of the configuration performed using this utility NO traps will be sent by the device unless its trap table has been properly configured see the SEHI100TX hardware manual and or the Trap Table chapter in the SPMA Tools Guide for more i
4. Using the SEHI100TX Hub View Navigating Through the Hub View Within the Hub View Figure 2 1 you can click mouse buttons in different areas of the window to access various menus and initiate certain management tasks The following sections describe the information displayed in the Hub View Front Panel and how to use the mouse in the Hub View Ports Display Cabletron Systems Inc SEHI1OOTX SEHI100TX 22 Port Display Admin Link Device Name SEHI100TX 22 Device Device Location Contact Status Physics Lab Info Uptime 22 days 07 56 48 IP Address gt 172 19 59 228 Tine 09 45 25 mie MAC Address 00 00 1d 00 00 00 Front Panel Date 01 21 98 Device summary information History Figure 2 1 The SEHI100TX Hub View Hub View Front Panel In addition to the graphical display of the modules the Hub View gives you device level summary information The following Front Panel information appears below the port display in the Hub View Contact Status is a color code that shows the status of the connection between SPMA and the device e Green means a valid connection e Blue means that SPMA is trying to reach the device but doesn t yet know if the connection will be successful e Red means that SPMA is unable to contact or has lost contact with the device 2 2 Using the Hub View Using the SEHI100TX Hub View Using the Hub View Uptime The time that the device h
5. Disabled Segnenting Traps Enabled wv Disabled Set Trap Status For Selected Modules Apply Close Figure 3 3 The Module Traps Window 3 In the Module Traps window click mouse button 1 to select the module for which you wish to configure link and segmentation traps Ifthe Set Trap Status For field displays Selected Modules the default setting you can click to select any modules to de select any highlighted module click on it again e Ifthe selection Modules is displayed in the Set Trap Status For field all available modules will be automatically selected if you de select any module the Set Trap Status For field will automatically revert to the Selected Modules setting To change the setting in the Set Trap Status For field click on the currently displayed setting and drag down to select a new setting 4 Click on the appropriate selection in the Link Traps field to Enable or Disable link traps for the selected modules as desired 5 Click on the appropriate selection in the Segmenting Traps field to Enable or Disable segmenting traps as desired 6 Click on Apply to save your changes click on Close to exit the window Enabling and Disabling Link Seg Traps 3 5 Link Seg Traps Viewing and Configuring Link Seg Traps for Ports To enable or disable Link and Segmentation traps for individual ports 1 In the Repeater Link Seg Traps window select a repeater in the scroll list 2 Cl
6. 2 7 Port Operational State 2 22 Port Status 2 14 Port Type 2 10 portLinkDown 3 2 portLinkUp 3 2 portSegmenting 3 1 portUnsegmenting 3 1 primary port 4 5 R rAhwtr 3 3 r4red 4 2 receive collisions 2 18 Received Bytes 2 17 Index 2 Redundancy 2 4 redundant circuits 4 1 Repeater One A 2 Reset Circuit 4 5 Runt Frames 2 19 S Save As Defaults 2 21 segmentation traps 3 1 segmented 2 7 2 10 2 15 SEHI100TX firmware 2 5 SEHI100TX MIB components A 1 Set Trap Status For 3 5 3 6 Setting Network Circuit Redundancy 4 1 spmarun 3 3 stand alone mode 2 5 Station 2 16 Statistics 2 22 statistics 2 16 frames 2 17 2 20 general errors 2 17 Status 2 15 T technical support 1 6 Test Time 4 6 testing redundant circuits 4 6 TFTP Download 1 3 Time 2 11 Topology Type 2 16 Total Errors 2 18 Total Packets 2 17 Traffic 2 9 transmit collisions 2 18 Trap Table 1 3 Trunk 2 16 U unique community names A 2 Uptime 2 3 Use Defaults 2 21 Utilities 1 3 V viewing trap messages 3 1 4 6 stand alone mode 3 1 4 6
7. 255 Frames 256 511 Frames 512 1023 Frames 1024 1518 Frames Giant Frames packets larger than 1518 bytes Because the SEHI100TX does not currently support Protocol counts the Protocol fields in the Frames window will be grayed out Managing the Hub In addition to the performance information described in the preceding sections the Hub View also provides you with the tools you need to configure your HUBStack and keep it operating properly Hub management functions include setting polling intervals enabling ports at the module and port level and disabling ports at the port level Setting the Polling Intervals To set the polling intervals used by SPMA and the SEHI100TX 1 Click on the Device button to display the Device menu 2 Drag down to Polling Intervals and release The SEHI100TX Polling Intervals window Figure 2 11 will appear 2 20 Managing the Hub Using the SEHI100TX Hub View Polling Intervals 1272 19 59 Contact Status Device General Status Device Configuration Port Operational State Statistics Save as Defaults Use Defaults Apply Figure 2 11 The Polling Intervals Window 3 To activate the desired polling click mouse button 1 on the selection box to the right of each polling type field 4 To change a polling interval highlight the value you would like to change and enter a new value in seconds Note that the Use Defaults option must not be selected or values wi
8. Traps field to Enable or Disable link traps for the selected ports as desired 5 Click on the appropriate selection in the Segmenting Traps field to Enable or Disable segmenting traps as desired 6 Click on Apply to save your changes click on Close to exit the window Enabling and Disabling Link Seg Traps 3 7 Link Seg Traps 3 8 Enabling and Disabling Link Seg Traps Chapter 4 Repeater Redundancy Configuring and enabling redundant circuits monitoring redundant circuits Setting Network Circuit Redundancy The redundancy application gives you the ability to define redundant circuits for your SEHI100TX to ensure that critical network connections remain operational Each circuit has a designated primary port and one or more backup ports The SEHI100TX monitors the link status of the primary port s connection to one or more network IP addresses if the link fails the SEHI100TX automatically switches traffic to a backup port Before you configure redundancy make sure that only the primary physical link is connected to the network If a backup port is connected before you configure and enable redundancy you create a data loop To open the main Repeater Redundancy window from the icon 1 Click on the appropriate device icon to display the icon menu 2 Drag down to Redundancy and release from the Hub View 1 Click on Device to display the Device menu 2 Drag down to Redundancy and release
9. devices at both ends of the disconnected or broken cable will generate the portLinkDown and portLinkUp traps even when only one end of the cable has been removed BNC thin coax AUI and transceiver ports do not support a link signal As described above BNC ports respond to changes in link status by generating portSegmenting and portUnsegmenting traps AUI and transceiver ports do not respond at all to changes in link status unless the port has been segmented due to excessive collisions and will always display as on even if no cable is connected Enabling and Disabling Link Seg Traps 3 2 Although each Cabletron device comes with a number of traps built into the firmware no device will generate these traps unless it is configured to do so This can be accomplished via Local Management by enabling traps and entering your workstation s IP address in the Community Names screen or via the SPMA Trap Table utility accessible from the icon menu or from the command line Once traps as a whole have been enabled you can use the Link Seg Traps feature to selectively enable and disable link and segmentation traps as required by your network management needs To open the Repeater Link Seg Traps window from the icon 1 Click on the appropriate SEHI100TX icon to display the icon menu 2 Drag down to Link Seg Traps and release What is a Link Trap Link Seg Traps from the Hub View 1 Click on Device to display the Device
10. every port link both primary and backup by polling the IP addresses in each circuit s Polling Addresses list through each port configured as part of the circuit This test can be performed at a pre determined time or manually at any time If the test detects any problems with the ports on a circuit whether active or backup it will issue traps identifying the circuit and its problem ports SPMA does not accept the trap messages that task is left to your network management system See the appropriate network management system documentation for details about viewing trap messages Note also that NO traps will be sent by the device unless its trap table has been properly configured see the SEHI100TX hardware manual and or the Trap Table chapter in the SPMA Tools Guide for more information The testing begins at each circuit s currently active port all ports are tested in sequence Once testing is finished the circuits will be reset so that the port designated as Primary will become the active port if the primary port is not operational the next operational backup port will be activated The SEHI100TX automatically polls all enabled circuits through the Primary port and all Backup ports at the time specified in the Test Time box If the first poll fails results in a no link condition with all of the circuit IP addresses the SEHI100TX checks the circuit s Retries field If Retries is greater than 0 the SEHI100TX waits the number of seconds
11. link to a device at the other end of the cable or that there is no cable attached SEG Segmented indicates that the port has been segmented by the repeater due to an excessive collision level Because BNC thin coax AUI and transceiver ports do not support the link feature the displayed Admin Link status for those ports may be misleading for example a BNC port will display as segmented when in fact there is no cable or terminator attached or the cable has been disconnected an AUI or transceiver port will display as on with a valid link signal even when no cable is attached Be sure to keep these anomalies in mind when troubleshooting a device so equipped e Admin Status displays either ON or OFF an indication of whether management has the port enabled or disabled A port can be ON but not operational for example under the Admin display ports that are segmented or not linked are shown as ON e Active Ports displays either YES or NO for any active green port indicating whether or not that port has seen any traffic at all since the device was last initialized or the counters were last reset this port display form can tell you whether any port whose statistics are not currently incrementing has seen some activity in the past Non green presumably inactive ports will display three dashes regardless of their past statistical activity Checking Device Status and Updating Front Panel Info 2 10 The Device Status window
12. menu 2 Drag down to Link Seg Traps and release from the command line stand alone mode 1 From the appropriate directory type spmarun r4hwtr IP address community name GEES The spmarun script invoked first in the above command temporarily sets the environment NOTES variables SPMA needs to operate be sure to use this command any time you launch an application from the command line This script is automatically invoked when you launch an application from the icon menu or from within the Hub View If you wish to change any Link Seg Trap settings be sure to use a community name with at least Read Write access If you only wish to view current settings a community name with Read access will be sufficient If there is a hostname mapped to your SEHIT00TX s IP address you can use hostname in place of IP address gt to launch this application Please note however that the hostname is not the same as the device name which can be assigned via Local Management and or SPMA you cannot use the device name in place of the IP address The main Repeater Link Seg Traps window Figure 3 1 will appear Repeater Link Seg Traps 172 19 59 228 Rptr Traps Module Traps Port Traps Quit Figure 3 1 The Repeater Link Seg Traps Window Enabling and Disabling Link Seg Traps 3 3 Link Seg Traps Configuring Link Seg Traps for the Repeater To enable or disable Link and Segmentation traps for all por
13. open the Hub View if you are working within a network management system you can select the Hub View option from the icon menu specific directions for creating a SEHI100TX icon and accessing the icon menu can be found in the appropriate Installing and Using SPECTRUM for guide If you are running the SEHI100TX module in a stand alone mode type the following at the command line spmarun hubstack lt IP address gt lt community name gt The community name you use to start the module must have at least Read access for full management functionality you should use a community name that provides Read Write or Superuser access For more information on community names consult the appropriate Installing and Using SPECTRUM for guide and or the Community Names chapter in the SPMA Tools Guide The spmarun script invoked first in the above command temporarily sets the environment variables SPMA needs to operate be sure to use this command any time you launch an application from the command line This script is automatically invoked when you launch an application from the icon menu or from within the Hub View If there is a hostname mapped to your SEHI100TX s IP address you can use hostname in place of IP address gt to launch the Hub View Please note however that the hostname is not the same as the device name which can be assigned via Local Management and or you cannot use the device name in place of the IP address 21
14. please have the following information ready e The product name and part number The version number of the program that you need help with SPMA is modular which means each application will have a specific revision number Where applicable an INFO button provides the version number you can also view the version number for any application by typing the command to start the application followed by a v You can contact the Cabletron Systems Global Call Center via any of the following methods By phone Monday through Friday between 8 AM and 8 PM Eastern Standard Time at 603 332 9400 By mail Cabletron Systems Inc PO Box 5005 Rochester NH 03866 5005 By Internet mail support ctron com FTP ftp ctron com 134 141 197 25 Login anonymous Password your email address By BBS 603 335 3358 Modem Setting 8N1 8 data bits 1 stop bit No parity Getting Help Introduction to SPMA for the SEHI100TX 22 For additional information about Cabletron Systems products visit our World Wide Web site http www cabletron com For technical support select Service and Support SEHI100TX Firmware SPMA support for the SEHI100TX has been tested against firmware version 1 00 06 if you have an earlier version of firmware and experience problems running SPMA contact Cabletron Systems Global Support Center for upgrade information As a general rule firmware versions for new products are liable to change rapidly contact the Cabletro
15. specified in the Poll Interval field and then polls the circuit again Monitoring Redundancy Repeater Redundancy To set the Poll Interval 1 Inthe All Circuits box type in a new value in the Poll Interval field and click Set Poll Interval is the time in seconds between retries if the first attempt is unsuccessful To set the Test Time 1 Inthe All Circuits box type a new test time in the Test Time field in a 24 hour HH MM SS format and click set The Test Time is the time of day when the SEHI100TX polls the addresses listed in each of the enabled circuits To immediately test all enabled circuits 1 Click Test in the All Circuits box Monitoring Redundancy 4 7 Repeater Redundancy 4 8 Monitoring Redundancy Appendix SEHI100TX MIB Structure SEHITOOTX management information base configuration IETF MIB Support In addition to its proprietary features the SEHI100TX currently supports the following IETF MIB e 1213 MIB for Network Management of TCP IP based Internets MIB II SEHI100TX MIB Structure Cabletron s newer intelligent devices like the SEHI100TX organize MIB data into a series of components A MIB component is a logical grouping of MIB data and each group controls a defined set of objects For example SEHI100TX repeater information resides in its Repeater component more generic device and port information resides in the SEHI100TX Chassis MGR component The S
16. statistic second format Load Load of theoretical maximum displays traffic as a percentage of theoretical maximum Traffic Pkts sec capacity Port Type displays port Collisions Colls sec status ON OFF NLK etc Module Type Click mouse button 1 to toggle Displays the type of module Errors Errors sec total or the port between enabled and or device whose ports are by type disabled click mouse button 3 currently being displayed in to display the Port menu Frame Sizes of total packets the Ports Display Port Type Admin Link Status Admin Status or Active Ports SEHI100T X 22 Port Display Admin Link Module Index Port Index Scroll Bar Indicates the module s position in Click mouse button 3 to Use the scroll bar to the SEHI100TX managed stack the display the Port menu rotate through the Ports SEHI100TX itself is always 1 Display for each hub in regardless of its actual location in the SEHI100TX the stack Click mouse button 1 to open the Module Status window click mouse button 3 to display the Module menu managed stack Figure 2 4 Mousing Around The Ports Display 2 6 Using the Hub View Using the SEHI100TX Hub View Hub View Port Color Codes The Port Status boxes in the Hub View are color coded to indicate the port s connection status The colors are consistent for all Port Display Forms except Admin Status the exceptions are noted below Green indicates that the
17. which does not meet accepted Ethernet spec CRC Errors CRC or Cyclic Redundancy Check errors occur when packets are somehow damaged in transit When each packet is transmitted the transmitting device computes a frame check sequence FCS value based on the contents of the packet and appends that value to the packet The receiving station performs the same computation if the FCS values differ the packet is assumed to have been corrupted and is counted as a CRC error CRC errors can result from a hardware problem causing an inaccurate computation of the FCS value or from some other transmission problem that has garbled the original data The CRC error counter shows the total number of CRC errors recorded since the window was last opened or reset OOW Collisions The number of out of window collisions recorded since the window was last opened or reset OOW collisions occur when a station receives a collision signal while still transmitting but more than 51 2 usec the maximum Ethernet propagation delay after the transmission began There are two conditions which can cause this type of error either the network s physical length exceeds IEEE Monitoring Hub Performance Using the SEHI100TX Hub View 802 3 specifications or a node on the net is transmitting without first listening for carrier sense and beginning its illegal transmission more than 51 2 us after the first station began transmitting Note that in both cases the occurre
18. 2 3 Repeater AUI and 10BASE T specifications It will transmit re timed data packets regenerate preamble extend fragments arbitrate collisions and automatically partition problem segments 1 1 Introduction to SPMA for the SEHI100TX 22 Using the SEHI User s Guide Your SPECTRUM Portable Management Application SPMA for the SEHI100TX 22 consists of a number of different applications each of which provides a portion of the overall management functionality Each of these applications can be accessed from the icon menu if you are using a management platform and from the command line if you are running in stand alone mode in addition several applications can also be accessed from within the Hub View a graphical display of the SEHI and its ports The SEHI User s Guide describes how to use many of the applications included with the module note that the instructions provided in this guide apply to the SEHI100TX regardless of the operating system or management platform you using Instructions for launching each individual function from the command line stand alone mode are also included in each chapter Following is a description of the applications described in this guide while we provide as much background information as we can we do assume that you re familiar with Ethernet networks and general network management concepts e Chapter 1 Introduction to SPMA for the SEHI100TX 22 describes the SEHI 100 TX 22 User s G
19. 4 1 Repeater Redundancy from the command line stand alone mode 1 From the appropriate directory type spmarun r4red IP address community name gt The spmarun script invoked first in the above command temporarily sets the environment variables SPMA needs to operate be sure to use this command any time you launch an application from the command line The script is automatically invoked when you launch the application from the icon menu or from within the Hub View If you wish to change any redundancy settings be sure to use a community name with at least Read Write access If you only wish to view current settings a community name with Read access will be sufficient If there is a hostname mapped to your SEHI100TX s IP address you can use hostname in place of IP address gt to launch this application Please note however that the hostname is not the same as the device name which can be assigned via Local Management and or SPMA you cannot use the device name in place of the IP address The main Repeater Redundancy window Figure 4 1 will appear Repeater Redundancy 172 19 59 No Repeater Figure 4 1 The Repeater Redundancy Window Configuring a Redundant Circuit To establish or edit a redundant circuit 1 Inthe Repeater Redundancy window click mouse button 1 on the repeater interface for which you would like to edit or establish a redundant circuit then click The Chan
20. EHI100TX MIB consists of five components each of which is described below To see the names of the MIB components in your SEHI100TX bring up the Community Names application or use any SNMP Get operation that will allow you to view the contents of the chCompTable The SEHI100TX MIB consists of the following components SEHI100TX Chassis MGR The Chassis MGR MIB component contains most of the basic information about the SEHI100TX including the SEHI100TX s MIB component information in the chCompTable device names hardware revision numbers MAC and IP addresses the current time and date and information related to redundancy alarms and TFTP download The system interfaces at ip icmp udp and snmp groups from MIB II are also included The community names assigned to this MIB component provide the gateway that all SPMA applications use to access all A 1 SEHI100TX MIB Structure information in the other components even if those components have different community names the Chassis MGR community names are the same as those assigned via Local Management SEHI100TX LIM The SEHI100TX LIM or Local Management component contains the objects that provide out of band management via the Console port on the SEHI100TX s front panel No objects from this component are used for remote management Repeater One The Repeater MIB component controls all repeater functionality on the SEHI100TX These functions include port count port e
21. Figure 2 6 is where you change the information displayed on the Hub View Front Panel and where you can see summary information about the current state of the device To open the Device Status window 1 Click on Device to display the Device menu 2 Drag down to Status and release Monitoring Hub Performance Using the SEHI100TX Hub View Device Status 172 19 59 228 Name sEHI100TX 22 o 7 Location Physics Lab Contact 339 1234 7 Tine 13 40 03 Date 04 16 98 Chassis Type Standalone Close Figure 2 6 The Device Status Window Name and Location These text fields help identify this SEHI100TX controlled HUBStack The information you enter in the Name and Location boxes is written to the SEHI100TX s MIB and appears on the Hub View front panel Contact Use the Contact box to record the name and phone number of the person responsible for the device Note that the information entered here is not displayed on the Hub View front panel Date and Time Displays the current date and time from the SEHI100TX s internal clock Although the fields are static in the window the front panel display is a real time presentation To change the name location contact date or time 1 Highlight the appropriate field and type the new values 2 Press Enter or Return on the keyboard to save each change before moving on to another each change will appear on the front panel as soon as Enter or Re
22. SPECTRUVI Portable Management Application for the SEHI100TX 22 User s Guide CaBICTROn SYSTEMS The Complete Networking Solution Notice Cabletron Systems reserves the right to make changes in specifications and other information contained in this document without prior notice The reader should in all cases consult Cabletron Systems to determine whether any such changes have been made The hardware firmware or software described in this manual is subject to change without notice IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL INDIRECT SPECIAL OR CONSEQUENTIAL DAMAGES WHATSOEVER INCLUDING BUT NOT LIMITED TO LOST PROFITS ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONTAINED IN IT EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF KNOWN OR SHOULD HAVE KNOWN THE POSSIBILITY OF SUCH DAMAGES Virus Disclaimer Cabletron has tested its software with current virus checking technologies However because no anti virus system is 100 reliable we strongly caution you to write protect and then verify that the Licensed Software prior to installing it is virus free with an anti virus system in which you have confidence Cabletron Systems makes no representations or warranties to the effect that the Licensed Software is virus free Copyright 1998 by Cabletron Systems Inc All rights reserved Printed in the United States of America Order Number 9031975 E2 April 1998 Cabletron
23. SX Frames Frames Novell Frames Frames 128 255 Banyao Frames l Frames 256 511 BESNet Frames Frames Frames 512 1023 Frames P frames Repeater Statistics Stra Frames l AppleTalk Yraees Received Bytes 945425 Total Errors Total Packets 7250 Alignment Errors Other Frames Avg Packet Size 130 CRC Errors Broadcast Packets 0 00V Collisions Multicast Packets 0 Runt Frames Collisions 0 Giant Frames Close Figure 2 10 The Repeater Statistics Windows Device Level 2 16 Monitoring Hub Performance Using the SEHI100TX Hub View To view device statistics at the Device Module or Port levels 1 Display the Device Module or Port menu by clicking mouse button 3 in the appropriate area refer to Figure 2 5 page 2 8 2 Drag down to Statistics and then right to either General Errors or Frames and release The Hub View begins counting the selected statistics when you open the window counts will be cumulative until you use the Reset button or close the window When a device is reset statistics windows and or statistics displays in the Hub View may display very large numbers for one polling interval This is due to the resetting of the counters Because the SEHI100TX does not currently support Protocol counts the Protocol fields in the Frames window will be grayed out Note that the module statist
24. Systems Inc P O Box 5005 Rochester NH 03866 5005 SPECTRUM MiniMMAC FNB Multi Media Access Center and DNI are registered trademarks and Portable Management Application IRM IRM2 IRM3 IRBM ESXMIM ETSMIM EMME EMM E6 ETWMIM FDMMIM FDCMIM MicroMMAC MRXI MRXI 24 NB20E NB25E NB30 NB35E NBR 620 SEHI TRBMIM TRMM TRMM 2 TRMM 4 TRMMIM TRXI Media Interface Module MIM and Flexible Network Bus are trademarks of Cabletron Systems Inc UNIX and OPENLOOK are trademarks of Unix System Laboratories Inc OSF Motif and Motif are trademarks of the Open Software Foundation Inc X Window System is a trademark of X Consortium Inc Ethernet and XNS are trademarks of Xerox Corporation Apple and AppleTalk are registered trademarks of Apple Computer Inc Banyan is a registered trademark of Banyan Systems Inc DECnet is a registered trademark of Digital Equipment Corporation Novell is a registered trademark of Novell Inc CompuServe is a registered trademark of CompuServe Sun Microsystems is a registered trademark and Sun SunNet and OpenWindows are trademarks of Sun Microsystems Inc Restricted Rights Notice Applicable to licenses to the United States Government only 1 Use duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph 1 ii of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 Cabletron Systems Inc 35 Industrial Way R
25. also that if an active port fails and then is repaired it is not returned to active status until the circuit has been Tested unless all other backup ports on the circuit have failed in the interim 5 Once you have configured all the ports that compose the redundant circuit enable the circuit by clicking Enable Disable Be sure to make all physical connections to the backup ports once the redundant circuit has been configured and enabled To clear the settings in one circuit highlight the Circuit Name that you want to clear and click on Reset Circuit Setting Network Circuit Redundancy 4 5 Repeater Redundancy To clear all redundancy configurations click on Reset the All Circuits portion of the window Reset does the following e Deletes all entries in the Circuit Addresses box e Changes the status of every Circuit to Disabled Reverts to previous Circuit Name s e Clears all module and port entries After clearing redundancy settings by either method backup ports remain disabled until you manually reenable them so that data loops do not occur Before you enable the ports disconnect their physical connections Monitoring Redundancy 4 6 Once you have configured your redundant circuits you can use the fields in the All Circuits box to set the parameters that the SEHI100TX uses to periodically test each of the circuits The circuit test checks the current status of
26. as been running without interruption The counter resets to 0 days 00 00 00 HH MM SS when one of the following occurs e Power to the device is cycled device is reset manually Date and Time The date and time are taken from the device s internal clock You can set the device date and time using the Device Status window refer to page 2 10 for details Device Name A text field that you can use to help identify the device You can edit the device name using the Device Status window refer to page 2 10 for details Location A text field that you can use to help identify the device You can edit the device location using the Device Status window refer to page 2 10 for details If you have assigned a device name or location that contains more than 18 characters only the last 18 will be displayed in the Hub View Check the Device Status window for the complete name and or location if necessary IP Address The device s Internet Protocol address You cannot change the SEHI100TX s IP address from SPMA MAC Address The device s factory set hardware address The MAC address cannot be changed 2 3 Using the SEHI100TX Hub View 2 4 Device Clicking on the Device button displays the Device menu Figure 2 2 Device Menu Status Repeater Status Polling Intervals Statistics Pie Charts Graphs Meters Port Display Form Link Seg Traps Redundancy Figure 2 2 SEHI100TX Hub Vi
27. control over the device at these three levels and give you access to the tools menus and windows that let you monitor specific aspects of device performance change hub display options and set SEHI100TX operating and notification parameters Remember though many functions will operate the same at each level those accessed via the Device menu control or provide information about the SEHI100TX managed stack as a whole those accessed via the Module menu control or provide information about a single hub in the stack and those accessed via the Port menu control or provide information about a single port Monitoring Hub Performance 2 7 Using the SEHI100TX Hub View Device Menu Status Repeater Status Polling Intervals Module Menu Status Port Menu Statistics Status Statistics Pie Charts Graphs Meters Pie Charts 3 Graphs Meters Statistics Pie Charts Graphs Meters Port Display Form Port Display Form Enable Enable All Ports Disable Disable All Ports Link Seg Traps Redundancy Figure 2 5 The SEHI100TX s Device Module and Port Menus Hub performance data available through these menus includes e Device Module and Port status descriptions e Device Module and Port statistics which provide a complete breakdown of packet activity e Device Module and Port level pie charts graphs and meters for a graphical representation of the types and levels of traffic passing through the device For more
28. ct Status 2 2 2 21 conventions 1 3 CRC Errors 2 18 creating icons 2 1 Cyclic Redundancy Check CRC Errors 2 18 D Date 2 11 default community names A 2 Device button 2 4 Device Configuration 2 22 Device General Status 2 21 Device menu 2 4 2 7 Device Name 2 3 Device Status 2 10 disable ports 2 22 E enable ports 2 22 Error Priority Scheme 2 19 Errors 2 9 F FCS value 2 18 firmware version 1 7 2 5 Frame Sizes 2 9 2 20 Front Panel 2 21 front panel 2 2 G General Errors 2 17 general errors 2 17 Giant Frames 2 19 Global Community Names 1 3 global community names A 3 Global Find MAC Address 1 3 Global TFTP 1 3 H Host Services A 2 hostname 2 1 Hub View 2 1 Hub View Front Panel 2 21 hubstack 2 1 IETF MIBs supported by SEHI 1 inactive backup ports 4 5 Info window 2 5 IP Address 2 3 IP Services A 2 L LIM A 2 Link signal 2 7 2 10 Link Status 2 14 link traps 3 1 Index 1 Index Link Seg Traps 2 4 Load 2 9 Local Management A 2 Location 2 3 2 11 MAC Address 2 3 Media Type 2 15 MIB component A 1 MIB component descriptions A 3 MIB I II 1 3 MIBTree 1 3 misaligned packets 2 18 Module menu 2 7 Motif 1 4 Multicast Packets 2 18 N Name 2 11 2 14 O OOW Collisions 2 18 OSF Motif 1 4 P Poll Interval 4 6 Polling Intervals 2 4 polling intervals 2 20 port color codes 2 7 Port Display Form 2 4 2 8 2 22 port display form options 2 9 Port menu
29. d how to access each one Info If you need to call Cabletron s Global Support about a problem with the Hub View application you ll need the information provided in the Info window Figure 2 3 Info 172 19 59 228 SPMA for the SEHI100TX Software Version SPMA hubstack 3 1rev0 application version Pere fer SEHI1007X firmware revision Firmware Boot Version 01 00 03 firmware boot prom version and hardware version Hardware Version 0 0 Figure 2 3 The Hub Information Window Quit Clicking mouse button 1 on the Quit button closes all Hub View application windows any open applications which can also be accessed from the command line or from the icon menu will remain open Using the Mouse in the Hub View Ports Display Each device in your SEHI100TX managed HUBStack will have its own ports display in the Hub View you can access the available ports displays by using the scroll bar located on the right side of the Hub View Ports Display window as illustrated in Figure 2 4 The illustration below also indicates how to use the mouse to access the Module and Port menus and functions Using the Hub View 2 5 Using the SEHI100TX Hub View Port Display Form Using the Module or Device t menus you can change the port e Port Status display changes display form shown in the Port up Dip lay Status boxes to any one of the format selected Statistical following selections display values in a
30. e the information entered here is not displayed anywhere else in the Hub View To edit the Repeater Name 1 Highlight the text in the Name box and type in a new name 2 Press Enter or Return on the keyboard to save your changes Monitoring Hub Performance 2 13 Using the SEHI100TX Hub View Active Users This field is not supported by the SEHI100TX 22 Checking Port Status 2 14 You can open a Port Status window Figure 2 9 for any port in the SEHI100TX controlled HUBStack To open the Port Status window 1 Click mouse button 3 in the Port Index or Port Status box to display the Port menu 2 Drag down to Status and release Port Status 1 22 172 19 59 Name Board Bort 22 Link Status Inactive Status Active Active Users 0 Media Type Twisted Pair RJ45 conn Topology Type Station Close Figure 2 9 The Port Status Window Note that the window title includes the module and port number in parentheses the rest of the window contains the following fields Name This text field can help identify the port the information entered here is not displayed anywhere else in the Hub View To edit the Name 1 Highlight the text in the Name box and type in a new name 2 Press Enter or Return on the keyboard to save your change Link Status The port s Link Status tells you whether or not the port has a valid connection to the node at the other end of the cable segment The possible Lin
31. e using SPMA for the SEHI100TX in stand alone mode that is without benefit of a specific network management system instructions for starting each application from the command line are included in each chapter of this guide and the SPMA Tools Guide Conventions Conventions The family of SPECTRUM Portable Management Applications can work with a number of different network management systems running on several different operating systems and graphical user interfaces This versatility presents two documentation problems first there is no standard terminology and second the appearance of the windows will differ based on the graphical interface in use For the sake of consistency the following conventions will be followed throughout this and other SPMA guides 1 3 Introduction to SPMA for the SEHI100TX 22 Screen Displays SPMA runs under a variety of different operating systems and graphical user interfaces To maintain a consistent presentation screen displays in this and other SPMA guides show an OSF Motif environment If you re used to a different GUI don t worry the differences are minor Buttons boxes borders and menus displayed on your screen may look a bit different from what you see in the guide but they re organized and labelled the same located in the same places and perform the same functions in all screen environments Some windows within SPMA applications can be re sized those windows will displa
32. ed the appropriate level of access read only read write or super user to all of that device s MIB information even if the other MIB components have different community names as will occur of necessity if the SEHI100TX has multiple Repeater MIB components each of which must have a unique set of community names SEHI100TX MIB Structure SEHI100TX MIB Structure The set of community names you assign via Local Management are those which apply to the SEHI100TX Chassis MGR MIB component Newer versions of devices with this component based MIB architecture have been simplified somewhat these devices support a single global set of community names with small modifications added automatically to accommodate multiple instances of the same MIB component such as network components Again defining your device icon or launching a management application with one of these global community names gives SPMA access to all MIB information Where community names may become an issue however is when you are using the MIBTree or any similar MIB based tool such as those provided by SunNet Manager or HP Network Node Manager to access MIB information For these kinds of tools you must supply the precise community name assigned to the component that contains the information you want For devices which support the original component based MIB architecture such as the SEHI100TX this means you must use the exact community name you have assig
33. ew Device Menu The Device menu lets you perform the following Open the Device Status window Open the Repeater Status window Open the Polling Intervals window Open the Statistics windows Create device level Pie Charts and Graphs or Meters Change the Port Display Form Launch the Link Seg Traps application Launch the Redundancy application Graphing capabilities are provided by an application that is included in HP Network Node Manager and IBM NetView therefore graphs are only available when SPMA is run in conjunction with one of these network management platforms If you are running SPMA in a stand alone mode or in conjunction with SunNet Manager or Solstice Enterprise Manager no graphing options will be displayed on buttons or menus Note that the screens displayed in this guide will include the graph related options where they are available please disregard these references if they do not apply Using the Hub View Using the SEHI100TX Hub View Note that the Device menu does not provide access to every application which is available to the SEHI100TX some information is only available from the Module or Port menus and several applications can only be accessed either from the icon menu if you are running under a network management platform or from the command line if you are running in stand alone mode See Chapter 1 Introduction to SPMA for the SEHI100TX 22 for a complete list of applications available to the SEHI100TX an
34. ghts or limitations regarding the use duplication or disclosure of this computer software are to be expressly stated in or incorporated in the contract e This Notice shall be marked on any reproduction of this computer software in whole or in part Chapter 1 Introduction to SPMA for the SEHI100TX 22 Using the SEHI User s Guilde ue sieuu ti ebria eias 1 2 What s NOT inthe SEHIIDOTX User s Guide 1 2 NS 1 3 Sereen DISplayS cautior en bou ai RO ud atus niat 1 4 Using the Mouse 1 5 1 6 5 Firm Ware reir trt terrent intrent erii terere 1 7 Year 2000 Compliance triente t rebas 1 7 Chapter 2 Using the SEHI100TX Hub View Using the Hub VIC M 2 1 Navigating Through the Hub View ceni calci side 2 2 Hub View Front Panel i esent nh tee ipe tienes 2 2 Using the Mouse in the Hub View Ports Display eee 2 5 Hub View Port Color Codes sse 2 7 Monitoring Hub Performance nennen nene 2 7 Port Display i doe eio eI e erre nui ep pare fere ee ded 2 8 Checking Device Status and Updating Front Panel Info 2 10 Checking Mod le Statio pl Hand 2 12 Checking Repeater Dialis obe de
35. hile transmitting i e a port in the SEHI100TX managed stack transmitted one of the colliding packets however those counts are combined and a single total value is displayed Errors Shows port traffic errors in an errors second format You can display any one of the following types of errors Total errors Alignment errors CRC Cyclic Redundancy Check errors Runts Giants OOW Out of Window Collisions For error type descriptions see Checking Statistics page 2 16 Frame Sizes Displays a percentage for each active port that represents what portion of that port s traffic is of a specific size measured in bytes You can display any one of the following frame sizes Runts packets with fewer than 64 bytes 64 127 128 255 256 511 512 1023 1024 1518 Giants packets with more than 1518 bytes For the statistical port display form options listed above three dashes will display for all inactive ports any active green port will display a numeric value even if it s 0 0000 Monitoring Hub Performance 2 9 Using the SEHI100TX Hub View Port Type Provides the following administrative information about the port e Admin Link Status indicates the connection status of the port ON indicates that the port has a valid link signal or does not support a link signal OFF indicates that the port has been turned off through management action NLK No Link indicates that the port does not have a
36. ick mouse button 1 on _ Pert Traps the Port Traps window Figure 3 4 will appear Channel Link Seg Traps 172 19 59 228 Module Port Link Traps Seg Traps Enabled Enabled Enabled Enabled Enabled Enabled Enabled Enabled Enabled Enabled Enabled Enabled Enabled Enabled Link Traps Enabled v Disabled Segnenting Traps Enabled Disabled Set Trap Status For Selected Ports Apply Close Figure 3 4 The Port Traps Window 3 In the Port Traps window click mouse button 1 to select the port or ports for which you wish to configure traps Set Trap Status For field displays Selected Ports the default setting you can click to select any ports to de select any highlighted port click on it again Ifthe selection All Ports on Module is displayed in the Set Trap Status For field you can select only one port at a time trap status will be set for all ports on the same module as the selected port Ifthe selection All Ports on Repeater is displayed in the Set Trap Status For field all available ports will be automatically selected if you de select any port the Set Trap Status For field will automatically revert to the Selected Ports setting 3 6 Enabling and Disabling Link Seg Traps Link Seg Traps To change the setting in the Set Trap Status For field click on the currently displayed setting and drag down to select a new setting 4 Click on the appropriate selection in the Link
37. ics windows include the module number in the window title the port statistics windows include the module and port numbers in the window title General Error Statistics The General Errors statistics windows display the following fields Received Bytes The number of bytes of data received by this device module or port since the window was last opened or reset Total Packets The number of packets of all types received by this device module or port since the window was last opened or reset Avg Packet Size The number of bytes per packet received by this device module or port since the window was last opened or reset The average packet size is calculated by dividing the number of bytes received by the number of packets received Broadcast Packets The number of broadcast packets received by this device module or port since the window was last opened or reset Broadcast packets have a single address recognized by each station on the net this address is designated in IP form as 255 255 255 255 or in MAC hexadecimal form as FF FF FF FF FF FF The ARP and RARP requests sent by bridges and routers are broadcast packets Monitoring Hub Performance 2 17 Using the SEHI100TX Hub View 2 18 Multicast Packets The number of multicast packets received by this device module or port since the window was last opened or reset Multicast packets are simultaneously addressed to more than one address but fewer than all addresses Co
38. information about pie charts graphs and meters see the Charts Graphs and Meters chapter in the SPMA Tools Guide Port Display Form 2 8 You can change the type of information displayed for each port in the device by using the Port Display Form option on the Device and Module menus Changing the port display form via the Device menu will affect all ports the SEHI100TX controlled stack changing the display form via the Module menu will affect only those ports on the selected device To change the port display form 1 Click on Device to display the Device menu or on the Module Index box to display the Module menu 2 Drag down to Port Display Form then right as necessary to select one of the port display options The current selection will be displayed in the Port Display Form field on the port display Monitoring Hub Performance Using the SEHI100TX Hub View Port display form options are Load Shows a percentage for each active port that represents that port s portion of the theoretical maximum traffic level for Ethernet interfaces 10 megabits per second for Fast Ethernet interfaces 100 megabits per second Traffic Displays port traffic data in a packets second format Collisions Displays port traffic data in a collisions second format The SEHI100TX counts both receive collisions those collisions it detects while receiving a transmission and transmit collisions those it detects w
39. it Name highlighted click __ 44 to access the Add Circuit Address window Figure 4 4 Add Circuit amp ddress IP Address j Apply Close Figure 4 4 The Add Circuit Address Window You can use this window to define IP addresses of up to 8 devices on the network These addresses identify the destination nodes that the SEHI100TX looks for to determine the status of the active link If the device determines that it has lost the link with the first address in the Circuit Addresses list it checks the link status with the next address If it can t establish a link with any address in the list the device switches traffic to a backup port a To add a circuit address enter a valid network IP address and then click apply Repeat as necessary to add additional addresses Click Close to exit the window The SEHI100TX will poll the circuit addresses in the order they were entered b To delete a circuit address highlight the address in the Circuit Addresses list in the Channel X Redundancy window and click eisee Use the bottom half of the Channel X Redundancy window to define the primary active and backup ports for a Circuit a Inthe Circuit list highlight the Circuit Name of interest and click Enable Disable to ensure that the Status of the circuit is set to Disabled before configuring the port list Setting Network Circuit Redundancy Repeater Redundancy b Specify up to 8 ports that will act as the redundan
40. k conditions are Monitoring Hub Performance Using the SEHI100TX Hub View e Active The port has a valid connection with the device at the other end of the port s cable e Inactive The device at the other end of the cable is turned off there is a break in the cable or there is no device or cable connected Not Supported The selected port does not support the Link feature so the SEHI100TX cannot determine link status this value will show only for thin coax BNC AUI or transceiver ports The fact that thin coax BNC AUI and transceiver ports do not support the link feature can cause some misleading port status indicators for example a BNC port may show as segmented when in fact the cable has been disconnected or an AUI or transceiver port may appear to have an active link when no cable has been attached You should keep these anomalies in mind when troubleshooting a device so equipped e Unknown The SEHI100TX can t determine a link status Status The port s Status can be one of three states Segmented A port becomes segmented that is disabled by the repeater module when the port experiences 32 consecutive collisions or when the port s collision detector is on for longer than approximately 2 to 3 milliseconds Because they do not support the link feature thin coax BNC ports will display as segmented when there is no cable or terminator attached or the cable or terminator has bee
41. ll revert back to default levels when you click on Apply and your changes will be ignored 5 If you wish to use your new polling interval settings as the default values that SPMA will use for each SEHI100TX controlled stack you are managing use mouse button 1 to select the Save As Defaults option 6 If you wish to replace existing values with the current set of default values use mouse button 1 to select the Use Defaults option 7 Click mouse button 1 on the Apply button once your changes are complete Changes take effect after the current polling cycle is complete You can set the update intervals for the following Contact Status This polling interval controls how often the SEHI100TX is pinged to check SPMA s ability to maintain a connection with the device Device General Status This polling interval controls how often the Hub View Front Panel Information such as Uptime Device Name and so forth and some port status information is updated Managing the Hub 2 21 Using the SEHI100TX Hub View Device Configuration This polling interval controls how often a survey is conducted of the devices installed in your SEHI100TX controlled HUBStack Port Operational State This polling interval controls the update of the information displayed in the Port Status boxes for each port in the device Port state information includes link state the color code and admin state on or off Statistics This polling inter
42. llisions The number of collisions recorded by this device module or port since the window was last opened or reset The SEHI100TX counts both receive collisions those detected while a port is receiving data and transmit collisions those detected while a port is transmitting data i e the port has transmitted one of the colliding packets however these counts are combined and a single total value is displayed Collisions of this type called legal collisions as opposed to the OOW collisions described below are a natural by product of a busy network if you are experiencing high numbers of collisions it may be time to redirect network traffic by using bridges or routers Extremely high collision rates can also indicate a data loop redundant connections or a hardware problem some station transmitting without listening first Total Errors The number of errors of all types recorded by this device module or port since the window was last opened or reset Alignment Errors The number of misaligned packets recorded since the window was last opened or reset Misaligned packets are those which contain any unit of bits which is less than a byte in other words any group of bits fewer than 8 Misaligned packets can result from a packet formation problem or from some cabling problem that is corrupting or losing data they can also result from packets passing through more than two cascaded multi port transceivers a network design
43. n Systems Global Support for upgrade information for the latest customer release of firmware Year 2000 Compliance Previous users of SPMA will note a few display changes related to Year 2000 compliance All SPMA applications now have the ability to display a four digit year value where this information is available For example the Stand alone Launcher window which uses your workstation s system time value to display the time and date of the last contact change will now display these date values with eight digits 05 31 1998 instead of six 05 31 98 Please keep in mind however that SPMA s ability to display a four digit year value in device specific windows such as the Device Status window available from the Hub View or the Bridge View is dependent on the firmware s ability to provide a four digit value Not all firmware versions support this ability contact Cabletron Systems Global Call Center for information specific to your device firmware SEHITOOTX Firmware 1 7 Introduction to SPMA for the SEHI100TX 22 1 8 SEHITOOTX Firmware 1 2 Using the SEHI100TX Hub View Navigating through the Hub View monitoring hub performance managing the hub The heart of SPECTRUM Portable Management Applications SPMA for the SEHI100TX is the Hub View a graphical interface that gives you access to many of the functions that provide control over the device Using the Hub View There are two ways to
44. n disconnected i e a no link condition e Active The port is operating normally e Unknown The SEHI100TX cannot determine port status Active Users This field is not supported by the SEHI100TX Media Type Indicates the type of cable segment connected to the port The supported media types are e Twisted Pair RJ45 conn ector BNC EPIM e AUI EPIM e Transceiver Port AUI e Twisted Pair RJ45 EPIM Monitoring Hub Performance 2 15 Using the SEHI100TX Hub View e Multi Mode Fiber SMA e Multi Mode Fiber ST e Single Mode Fiber ST Topology Type Indicates how the port is being used The available types are e Station The port is receiving packets from no devices a single device or two devices Note that a port in station status may actually be connected to multiple devices station status simply indicates that no more than two devices are currently active Trunk The port is receiving packets from three or more devices it may be connected to a coax cable with multiple taps or to a repeater or another MIM e Unknown The SEHI100TX cannot determine the topology status Checking Statistics The Hub View can provide a summary of Ethernet statistics at the Device Module and Port levels as shown in Figure 2 10 The windows that display the statistics contain the same statistical categories at each level Repeater Frames O
45. nable disable port status board number repeater statistics packets bytes collisions errors etc protocol counts and frame sizes also included are the alarm redundancy source addressing and trap functions Note that the default community names for the Repeater MIB component will always be different from the default names assigned to all the other components SEHI100TX Host Services The Host Services MIB component contains the objects that provide the SEHI100TX with its IP functionality essentially those functions which allow the SEHI100TX to operate over a network including functions such as ping Telnet and TFTP SEHI100TX IP Services The IP Services MIB component is not currently used by the SEHI100 TX but is reserved for future use A Brief Word About MIB Components and Community Names A 2 In the original version of the component MIB architecture each MIB component is protected by its own set of user configurable Read Only Read Write and Super User community names These names determine the level of access that will be granted to the information controlled by each individual component For these devices the central point of access for remote management is provided by the Chassis MGR MIB component that is if you define your device icon or launch a management application using the read only read write or super user community name assigned to the Chassis MGR MIB component your SPMA application is grant
46. nce of the errors can be intermittent in the case of excessive network length OOW collisions will only occur when the farthest stations transmit at the same time in the case of the node which is transmitting without listening the malfunctioning node may only fail to listen occasionally and not all of its failures to listen will result in OOW collisions some may simply result in collisions if the 51 2 us window has not yet closed and some will get through fine if no one else happens to be transmitting Runt Frames The number of received packets smaller than the minimum Ethernet frame size of 64 bytes excluding preamble This minimum size is tied to the maximum propagation time of an Ethernet network segment the maximum propagation time is 51 2 us and it takes approximately 51 2 to transmit 64 bytes of data therefore every node on the segment should be aware that another node is transmitting before the transmission is complete providing for more accurate collision detection Runts can sometimes result from collisions and as such may be the natural by product of a busy network however they can also indicate a hardware packet formation transmission corrupted data or network design more than four cascaded repeaters problem Giant Frames The number of received packets that are longer than the maximum Ethernet size of 1518 bytes excluding preamble Giant packets typically occur when you have a jabbering node on
47. ned to a specific component to access that component s MIB information Again note that the SEHI100TX s Repeater components always have unique community names For devices which support the new global community names you must make note of the automatic modifications that are made for network components and use those specific community names when trying to access information stored in those components The MIB component descriptions provided above will serve as a roadmap for determining where the information you re interested in is located you can use the SPMA Community Names tool described in Chapter 3 of the SPMA Tools Guide to determine whether your version of firmware supports the original component based MIB architecture or the new global community names The Community Names tool also allows you to both view and set the community names which apply to your device SEHI100TX MIB Structure A 3 SEHI100TX MIB Structure A 4 SEHI100TX MIB Structure A active port 4 5 Active Users 2 13 2 14 2 15 Add Circuit Address 4 4 Admin Status 2 10 Admin Link Status 2 10 Alignment Errors 2 18 Avg Packet Size 2 17 Broadcast Packets 2 17 Change Name Retries 4 3 Charts Graphs and Meters 1 3 Chassis MGR A 1 Circuit Name 4 4 Collisions 2 9 2 18 color codes 2 2 2 7 community name 2 1 community names A 2 Community Names tool 1 3 component based MIB architecture A 2 connection status 2 7 Contact 2 11 Conta
48. nel X Redundancy window Figure 4 2 will appear 4 2 Setting Network Circuit Redundancy Repeater Redundancy Channel A Redundancy 172 19 59 228 All Circuits 01 00 00 Poll Interval 3 8 Circuit 01 Test Time Circuit 02 Circuit 03 Circuit 04 Circuit Status Retries Circuit Addresses Disabled Disabled Disabled Disabled Set Test Reset Enable Disable Reset Circuit Change Name Retries Module p Tn Add Port Delete Primary Active Close Figure 4 2 The Channel X Redundancy Window 2 If you want to change a circuits name or the number of retries highlight the appropriate circuit and click Change Nane Retries The Change Circuit window Figure 4 3 will appear Change Circuit z circuit Di 3 Nane Retries Apply Close Figure 4 3 The Change Circuit Window Setting Network Circuit Redundancy 4 3 Repeater Redundancy 4 4 4 a Inthe Name box enter a new circuit name up to 16 alphanumeric characters b Inthe Retries box enter the number of retries that is the number of times the SEHI100TX tests the connection to the first IP address listed in the Circuit Addresses list box before it gives up and moves on to the next address The valid range of retries you can enter into this field is 0 16 c before exiting the window to save your changes With the appropriate Circu
49. nformation What is a Segmentation Trap Cabletron s Ethernet repeaters count collisions at each port If a port experiences 32 consecutive collisions the repeater segments the port to isolate the source of the collisions from the rest of the network When the repeater segments a port it generates a portSegmenting trap As soon as a segmented port receives a good packet the repeater reconnects the port to the network and generates a portUnsegmenting trap 3 1 Link Seg Traps Unterminated BNC thin coax ports appear in the Hub View as segmented ports When you attach a thin coax cable or a 50 Q terminator to a port the repeater generates a portUnsegmenting trap when you remove the cable or terminator the repeater generates a portSegmenting trap Note also that devices at both ends of the cable will generate the portUnsegmenting and portSegmenting traps even if only one end of the cable has been disconnected What is a Link Trap Some Cabletron Ethernet repeater ports including RJ45 twisted pair and fiber optic ports generate a link signal to monitor the status of their connection with the device at the other end of the cable segment If the cable is removed or broken the port s link status goes to No Link and the repeater generates a portLinkDown trap When a port in a No Link condition receives a link signal the port goes to a Link condition and the repeater generates a portLinkUp trap Note that
50. ng the SEHI User s Guide Introduction to SPMA for the SEHI100TX 22 e Charts Graphs and Meters e Community Names e MIBLII e MIBTree e TFTP Download e Trap Table e Utilities Global Community Names Find MAC Address and TFTP Graphing capabilities are provided by an application that is included in HP Network Node Manager and IBM NetView therefore graphs are only available when SPMA is run in conjunction with one of these network management platforms If you are running SPMA in a stand alone mode or in conjunction with SunNet Manager or Solstice Enterprise Manager no graphing options will be displayed on buttons or menus Note that the screens displayed in this guide will include the graph related options where they are available please disregard these references if they do not apply Charts Graphs and Meters are accessible from the Hub View and the command line the Utilities and MIBTree applications are accessible from the platform console window Tools menu the Stand alone Launcher applications menu or the command line and the rest of the tool applications except Telnet are available from the icon menu the Hub View or the command line The Telnet application is available only from the icon menu or the command line Instructions on discovering Cabletron devices creating icons and accessing the icon menus within your management platform are included in your Installing and Using SPECTRUM for guide If you ar
51. ochester New Hampshire 03867 0505 a This computer software is submitted with restricted rights It may not be used reproduced or disclosed by the Government except as provided in paragraph b of this Notice or as otherwise expressly stated in the contract b This computer software may be 1 6 Used or copied for use in or with the computer or computers for which it was acquired including use at any Government installation to which such computer or computers may be transferred Used or copied for use in a backup computer if any computer for which it was acquired is inoperative Reproduced for safekeeping archives or backup purposes Modified adapted or combined with other computer software provided that the modified combined or adapted portions of the derivative software incorporating restricted computer software are made subject to the same restricted rights Disclosed to and reproduced for use by support service contractors in accordance with subparagraphs b 1 through 4 of this clause provided the Government makes such disclosure or reproduction subject to these restricted rights and Used or copied for use in or transferred to a replacement computer c Notwithstanding the foregoing if this computer software is published copyrighted computer software it is licensed to the Government without disclosure prohibitions with the minimum rights set forth in paragraph b of this clause d Any other ri
52. ou re using a two button mouse don t worry SPMA doesn t make use of mouse button 2 Just click the left button for button 1 and the right mouse button when instructed to use mouse button 3 Conventions 1 5 Introduction to SPMA for the SEHI100TX 22 Whenever possible we will instruct you on which mouse button to employ however menu buttons within SPMA applications will operate according to the convention employed by the active windowing system By convention menu buttons under the Motif windowing environment are activated by clicking the left mouse button referred to as mouse button 1 in SPMA documentation and there is no response to clicking the right button mouse button 3 Under OpenWindows menu buttons can be activated by clicking the right button and convention dictates that the left button activates a default menu option within SPMA that default option will also display the entire menu Because of this difference references to activating a menu button will not include instructions about which mouse button to use All other panels from which menus can be accessed and all buttons which do not provide access to menus will operate according to SPMA convention as documented Getting Help 1 6 If you need technical support related to SPMA or if you have any questions comments or suggestions related to this manual or any of our products please feel free to contact the Cabletron Systems Global Call Center Before calling
53. port is active that is the port has been enabled by management has a valid Link signal if applicable and is able to communicate with the station at the other end of the port s cable segment Note that an AUI or transceiver port will display as active as long as it has been enabled by management even if no cable is connected e Blue indicates that the port has been disabled through management e Yellow indicates that the port is enabled but does not currently have a valid connection This usually indicates that the device at the other end of the segment is turned off Red indicates that the port is enabled but is not able to pass packets This generally means that the port has been segmented by management after experiencing an excessive number of collisions for a BNC thin coax port however this may only mean that no cable or terminator has been connected When the Admin Status port display option is active only two colors apply a port will be displayed in green if it is enabled by management regardless of whether or not there is a cable attached or a valid link signal detected a port disabled by management will display as blue Monitoring Hub Performance The information displayed in the Hub View can give you a quick summary of device activity status and configuration SPMA can also provide further details about device performance via its three level menu structure The Device Module and Port menus Figure 2 5 give you
54. re 2 7 for any device in the SEHI100TX controlled stack To open the Module Status window 1 Click mouse button 1 in the Module Index box Use the scroll bar to the right of the ports display to scroll through the available modules or 1 Click mouse button 3 in the Module Index box to display the Module menu 2 Drag down to Status and release Module Status 1 172 19 59 228 Name Board 1 Active Users 0 Module Type SEHI100TX 22 Figure 2 7 The Module Status Window 2 12 Monitoring Hub Performance Using the SEHI100TX Hub View Name This text field can help identify the module or device the information entered here does not appear anywhere else in the Hub View To edit the Module Name 1 Highlight the text in the Name box and type in a new name 2 Press Enter or Return on the keyboard to save your changes Active Users This field is not supported by the SEHI100TX 22 Module Type The type of module you are viewing Checking Repeater Status The Repeater Status window Figure 2 8 allows you to assign a name to the SEHI100TX controlled HUBStack as a whole To open the Repeater Status window 1 Click on the Device button to display the Device menu 2 Drag down to Repeater Status and release Repeater Status 172 19 59 Name Network 1 Active Users 0 Close Figure 2 8 The Repeater Status Window Name This field can help identify the SEHI100TX controlled stack as a whol
55. t connections by using the Module and Port boxes to indicate each port and then clicking on Add to enter each port into the circuit c By default all ports are created as Inactive Backup ports You should designate both a Primary port and an Active port Typically you would configure the same port to be both Primary and Active but this is not required To select a primary port click button 1 on a port to highlight it then click Primary Usually the Primary port will also be your active port Should your Primary port not be designated as the active port it will switch to Backup Inactive status when the circuit is initially enabled but it will become the active port on the execution of the next test sequence assuming it has a valid link at the time of testing To select the initially active port click on a port whether or not it has already been selected as Primary and click active The port designated as Active will be the initial port through which the link is checked Should the active port fail redundancy will start at the top of the port list and activate the next backup port then work through the remaining ports in sequence should the first backup fail All backup ports will be disabled as soon as you enable the redundant circuit The ports remain disabled until they become active due to primary port failure If you disable the redundant circuit you must manually enable each backup port in that circuit Note
56. ts on a repeater 1 Inthe Repeater Link Seg Traps window click mouse button 1 on the repeater interface for which you would like to configure link and segmentation traps 2 Click mouse button 1 _ Retr Traps the Channel X Link Seg Traps window Figure 3 2 will appear Channel Link Seg Traps 172 19 59 228 Link Traps Enabled Enabled w Disabled Segnenting Traps Enabled Enabled v Disabled Apply Close Figure 3 2 The Channel X Link Seg Traps Window 3 Inthe Link Traps field click mouse button 1 on the appropriate selection to Enable or Disable link traps for the repeater 4 In the Segmenting Traps field click mouse button 1 on the appropriate selection to Enable or Disable segmenting traps for the repeater 5 Click mouse button 1 on Apply to save your changes the current status will be displayed in each field to the right of the field name Click on Close to exit the window Viewing and Configuring Link Seg Traps for Hub Modules To enable or disable Link and Segmentation traps for all ports on the selected hub module or modules 1 Inthe Repeater Link Seg Traps window select a repeater interface in the scroll list 2 Click mouse button 1 on Module Traps the Module Traps window Figure 3 3 will appear 3 4 Enabling and Disabling Link Seg Traps Link Seg Traps Channel A Link Seg Traps 172 19 5 Module Link Traps Seg Traps Enabled Enabled Link Traps Enabled
57. turn is pressed Monitoring Hub Performance 2 11 Using the SEHI100TX Hub View If your device firmware can accept four digit year values the Date field will allow you to enter the year portion in one two or four digit format If you choose to enter one or two digits for the year any value greater than or equal to 88 will be presumed to be in the 1900s a value of 87 or less is presumed to be in the 2000s No matter which entry format you choose the year will still be displayed and set as a four digit value If your device firmware cannot accept four digit year values the Date field will allow you to enter the year portion in one or two digit format with leading zeros supplied automatically for single digit entries No presumption is made about the century and any two digit year value from 00 to 99 will be accepted Attempts to set the date may result in one of three different error messages Two of these messages will indicate that the wrong number of digits has been used for the year value and will indicate the appropriate number of digits to use for the selected device the third message will indicate that the entered date is invalid because it is not an actual calendar date such as 02 29 in a non leap year any month value greater than 12 or any day value greater than 31 Chassis Type Displays the type of chassis used for the device stand alone Checking Module Status You can open a Module Status window Figu
58. uide and the conventions used in this and other SPMA manuals explains where to find information about the SEHI100TX and tells you how to contact Cabletron Systems Global Call Center e Chapter 2 Using the SEHI100TX Hub View describes the visual display of the Hub and explains how to use the mouse within the Hub View The operation of some basic functions available only from within the Hub View changing the Hub View display opening menus and windows enabling and disabling ports checking device and port status and so on are also described Chapter 3 Link Seg Traps describes how to configure link and segmentation traps to suit your management needs You can access the Link Seg Traps application from the icon menu the Hub View or the command line Chapter 4 Redundancy describes how to configure redundant circuits to keep your network connections up and running in the event of a single port s failure You can access the Redundancy application from the icon menu the Hub View or the command line e Appendix A SEHI100TX MIB Components lists the IETF MIBs supported by the SEHI100TX and describes their arrangement in a series of MIB components A description of the objects controlled by each component is also included What s NOT in the SEHI100TX User s Guide The following standard SPMA tools are available through the SEHI100TX module and are explained in the SPECTRUM Portable Management Application Tools Guide 1 2 Usi
59. val controls how often the information displayed in the Port Status boxes is updated when the Port Display Form is set to a rate or percentage and how often the Device Module and Port statistics counts are updated SPMA generates network traffic when it retrieves the above described information keep in mind that shorter intervals mean increased network traffic Range limits for these polling times are 0 999 999 seconds however an entry of 0 will be treated as a 1 Enabling Disabling Ports You can enable and disable ports both from the Module menu which affects all ports on a single module or device or from the Port menu which affects individual ports To enable or disable an individual port 1 Click mouse button 1 on the Port Status box to toggle the port On or Off or 1 Click mouse button 3 on the Port Index or Port Status box to display the Port menu 2 Drag down to Enable or Disable as appropriate and release The selected port changes color when its state changes A disabled port is blue To enable or disable all ports in module 1 Click mouse button 3 on the Module Index box to open the Module menu 2 Drag down to Enable All Ports or Disable All Ports as appropriate and release When disabling all ports on a module make sure you don t disable the port through which your management station is communicating with the HUBStack or you will lose contact with the stack 2 22 Managing the Hub Chapter 3
60. y the standard window resizing handles employed by your windowing system Re sizing a window doesn t re size the information in the window it just changes the amount of information that can be displayed see Figure 1 1 When you shrink a window scroll bars will appear as necessary so that you can scroll to view all the information that is available Cabletron Systems Inc SEHI100TX 22 172 19 59 228 SEHI100T X 22 Port Display Admin Link Use the scroll bars 1 4 provided to choose Uptine what to display ina window that s been resized Device Name SEHI100TX 22 Device Location Contact Status Physics Lab 22 days 07 54 52 IP Address Click here to display footer message history Figure 1 1 Window Conventions Some windows will also contain a History button selecting this button launches a History window Figure 1 2 which lists all footer messages that have been displayed since the window was first invoked This window can help you keep track of management actions you have taken since launching a management application Conventions Introduction to SPMA for the SEHI100TX 22 Cabletron Systems Inc SEHI100TX 22 172 19 Time Message Figure 1 2 The History Window Using the Mouse The UNIX mouse has three buttons as shown in Figure 1 3 Procedures within the SPMA document set refer to these buttons as follows Button 1 Button 2 Button 3 Figure 1 3 Mouse Buttons If y
61. your network one that is continuously transmitting or transmitting improperly for short bursts probably due to a bad transmitter on the network interface card Giant packets can also result from packets being corrupted as they are transmitted either by the addition of garbage signal or by the corruption of the bits that indicate frame size The SEHI100TX Error Priority Scheme Each Cabletron device employs an error priority scheme which determines how packets with multiple errors will be counted and ensures that no error packet is counted more than once The priority scheme for the SEHI100TX counts errors in the following order OOW Collisions Runts Giants Alignment Errors CRC Errors Monitoring Hub Performance 2 19 Using the SEHI100TX Hub View Knowing the priority scheme employed by the SEHI100TX can tell you a lot about the error counts you are seeing For example you know that the number of packets counted as CRC errors had only CRC errors they were of legal size not runts or giants and had no truncated bytes You also know that any packet less than 64 bytes long has been counted as a runt even if it also had alignment and or CRC problems which is likely if the runt is the result of a collision or other transmission problem Frames Statistics The Frames statistics windows display the following fields Frame Sizes Runt Frames packets smaller than 64 bytes 64 127 byte Frames 128

Cabletron Systems SPECTRUM SEHI100TX-22 User's Manual

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