® ONline Ethernet RMON MultiProbe Module Installation and Operation Guide Document Number 17-00519-2 Printed March 1996 Model Number: RMON-EMP-3 Software Version 1.0 3Com Corporation 118 Turnpike Road Southborough, MA 01772-1886 U.S.A.
Federal Communications Commission Notice This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Com Laser Library, 3Com OpenHub, 3TECH, FDDILink, FMS, G-Man, MultiProbe, NetProbe, OnDeck, ONdemand, ONline, PowerRing, StackJack, StackWay, Star-Tek, SwitchCentral, and Transcend are trademarks of 3Com Corporation. 3ComFacts and Ask3Com are service marks of 3Com Corporation. The 3Com Multichannel Architecture Communications System is registered under U.S. Patent Number 5,301,303.
iv Ethernet RMON MultiProbe Module Installation and Operation Guide
Contents How to Use This Guide Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xiii Structure of This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xiv Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xvi 3Com Documents . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3 — Configuring the Module Configuration Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Modifying Configuration Menu Values . . . . . . . . . . . . . . . . . . . . . . . 3-5 Using the Main Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . 3-6 Using the Download Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9 Using the Modify/View Configuration Values Menu . . . . . . . . . . . .
Chapter 4 — Troubleshooting Troubleshooting Startup Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Troubleshooting Malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Troubleshooting Network Connectivity Problems . . . . . . . . . . . . . . . . . . Technical Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 4-3 4-8 4-9 Appendix A — Specifications Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . .
viii Ethernet RMON MultiProbe Module Installation and Operation Guide
Figures Figure 1-1. Figure 2-1. Figure 2-2. Figure 2-3. Figure 3-1. Figure 3-2. Figure 3-3. Figure 3-4. Figure 3-5. Figure 3-6. Figure 3-7. Figure 3-8. Figure A-1. Figure A-2. Figure A-3. RMON Sample Application . . . . . . . . . . . . . . . . . . . . . . . 1-9 RMON MultiProbe Module in the ONline System Concentrator . . . . . . . . . . . . . . . . . . . . . . 2-6 Main Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . 2-9 RMON MultiProbe Module Front Panel LEDs and Reset Button . . . . . . .
x Ethernet RMON MultiProbe Module Installation and Operation Guide
Tables Table 2-1. Table 2-2. Table 3-1. Table 3-2. Table 3-3. Table 3-4. Table 3-5. Table 3-6. Table 3-7. Table 3-8. Table 3-9. Table 3-10. Table 3-11. Table 4-1. Table 4-2. Table A-1. Table A-2. Table A-3. Quick Installation Steps . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Module LED Interpretations . . . . . . . . . . . . . . . . . . . . . . 2-12 Main Configuration Menu Description . . . . . . . . . . . . . . . 3-8 Download Menu Description . . . . . . . . . . . . . . . . . . . . .
xii Ethernet RMON MultiProbe Module Installation and Operation Guide
How to Use This Guide This guide describes how to install the 3Com Ethernet RMON MultiProbe™ Module into the 3Com ONline™ System Concentrator and the ONcore® Switching Hub. This guide also provides troubleshooting suggestions to use if a problem occurs with the module.
Structure of This Guide This guide contains the following chapters and appendix: Chapter 1, Introduction – Provides an introduction to the 3Com Ethernet RMON MultiProbe Module. Chapter 2, Installing the Module – Describes the installation procedures for the module and describes how to monitor the front panel. Chapter 3, Configuring the Module – Describes how to configure the module for operation.
Document Conventions The following document conventions are used in this guide: Convention Courier text Indicates Example User input In the Agent Information Form, enter MIS in the New Contact field. System output After pressing the Apply button, the system displays the message Transmitting data. Bold command string Path names Before you begin, read the readme.txt file located in /usr/snm/agents.
Convention Note: Indicates A Note. The information is important Example Note: Use STP lobe cables for your system. Caution: A Caution. A condition may damage software or hardware Caution: Do not put your installation diskettes on a magnetic surface. This may damage the diskettes. Warning: A Warning. A condition may threaten personal safety Warning: Wear eye protection when performing these maintenance procedures.
3Com Documents The following documents provide additional information on 3Com products: ONline System Concentrator Installation and Operation Guide - Provides information on the installation, operation, and configuration of the ONline System Concentrator. This guide also describes the principal features of the ONline Fault-Tolerant Controller Module. ONcore Switching Hub Installation and Operation Guide - Provides information on the installation, operation, and configuration of the ONcore Switching Hub.
Reference Documents The following documents supply related background information: Case, J., Fedor, M., Scoffstall, M., and J. Davin, The Simple Network Management Protocol, RFC 1157, University of Tennessee at Knoxville, Performance Systems International and the MIT Laboratory for Computer Science, May 1990. Rose, M., and K. McCloghrie, Structure and Identification of Management Information for TCP/IP-based Internets, RFC 1155, Performance Systems International and Hughes LAN Systems, May 1990.
1 Introduction This chapter provides an introduction to the 3Com Ethernet RMON MultiProbe Module (hereafter referred to as the RMON MultiProbe Module). The RMON MultiProbe Module is managed by the following 3Com management modules: ❑ ONcore® Distributed Management Module (Version V2.10) ❑ ONline Ethernet Management Module (Version V4.
RMON Overview Remote Monitoring (RMON) is a standards-based network management tool that allows you to efficiently and effectively monitor segments throughout the network. You can use RMON to identify and isolate potential problems in your network before disruptions occur. RMON-compliant devices operate without impacting network operation. They function as promiscuous devices, which listen to and capture data on the network, but do not add additional traffic.
RMON Client The RMON Client consists of a management station running an application that uses SNMP (such as the 3Com ONdemand LANsentry™ software) to request data from the probe and display that data in various formats. You can also use the graphical interface to configure the RMON agent. The client application does not have to be located on the same segments as the network to which the probe is assigned, but does need connectivity to the networks.
❑ HostTopN Group - Sorts stations by top traffic contributors. You can use this information to identify the most active hosts on a segment or the hosts producing the most errors. ❑ Matrix Group - Collects statistics between pairs of devices on the network and tracks information specific to each connection, such as the number of packets transmitted between devices. ❑ Packet Capture Group - Handles the capture and uploading of packets collected by the RMON MultiProbe Module.
RMON MultiProbe Module Overview The RMON MultiProbe Module is a single-slot Ethernet module that you install in an ONline and ONcore hub. The RMON MultiProbe Module can monitor up to three Ethernet networks simultaneously and perform all functions on all networks in parallel.
RMON MultiProbe Module Features When you use the RMON MultiProbe Module in conjunction with an RMON client application, you can: ❑ Monitor the network ❑ Generate reports based on network information ❑ Filter and capture packets ❑ Process events and thresholds ❑ Detect network events In addition, the RMON MultiProbe Module monitors: ❑ Per-network collisions ❑ Per-port collisions (PPC) ❑ Port-address correlation (PAC) 1 - 6 Ethernet RMON MultiProbe Module Installation and Operation Guide
Other benefits of the RMON MultiProbe Module include: ❑ 3Com TriChannel™ Architecture - The RMON MultiProbe Module operates in an ONline System Concentrator and an ONcore Switching Hub. ❑ Slot Independence - You can install modules into any available slot in a 3Com ONline or ONcore hub. This flexibility eliminates the need to shut down the network and rearrange the existing configuration of the concentrator when you install new modules.
Theory of Operation This section describes the theory of operation for the RMON MultiProbe Module. The RMON MultiProbe Module: ❑ Supports simultaneous analysis of three Ethernet channels ❑ Monitors the network proactively For example, when a network event occurs or a problem becomes apparent in the network, you use a protocol analyzer to attempt to isolate and correct the problem. RMON technology also provides you with protocol analyzer capabilities.
Sample Application Figure 1-1 illustrates a sample application of RMON MultiProbe Modules in a concentrator monitoring Ethernet segments in Boston and New York. With the appropriate interconnections, you can view the RMON data collected by the RMON MultiProbe Modules from a client workstation application in Los Angeles . RMON Module Boston Router Router Router New York RMON Module Los Angeles Management Console with RMON Client Application Figure 1-1.
2 Installing the Module This chapter contains the following sections: ❑ Precautionary Procedures ❑ Quick Installation ❑ Unpacking Procedures ❑ Installing the RMON MultiProbe Module ❑ Connecting a Terminal ❑ Initializing the RMON MultiProbe Module ❑ Monitoring the Front Panel Installing the Module 2 - 1
Precautionary Procedures Caution: Electrostatic discharge (ESD) can damage static-sensitive devices on circuit boards. When you handle the module: ❑ Do not remove the board from its antistatic shielding bag until you are ready to inspect or install it. ❑ Handle the board by the faceplate only. Use proper grounding techniques when you install the module, including: ❑ Using a footstrap and grounded mat or wearing a grounded static discharge wrist strap.
Quick Installation Table 2-1 outlines the steps necessary to complete the installation of the RMON MultiProbe Module. If you are familiar with installing 3Com modules, use this table as a checklist. Otherwise, consult the remainder of this chapter. Table 2-1. Quick Installation Steps Step Procedure Chapter/Section 1 Unpack the module. Chapter 2, Unpacking Procedures section 2 Install the module into an open slot in the hub.
Unpacking Procedures To unpack the RMON MultiProbe Module: 1. Verify that the RMON MultiProbe Module (Model Number RMON-EMP-3) is the model you ordered by checking the model number listed on the side of the shipping carton. Note that the product model number printed on the shipping box differs from the model number on the product. The model number on the shipping box contains the prefix ‘3C9’. 2. Remove the module, in its antistatic bag, from the shipping carton. 3.
Installing the RMON MultiProbe Module You do not need to power down the hub to install or remove the RMON MultiProbe Module. You can insert the module while the hub is operating (this is called a hot swap). To install the RMON MultiProbe Module: 1. Properly ground yourself prior to handling the module. For example, wear a static wrist guard or touch a grounded static mat prior to handling the module. 2. Locate an open slot in the hub.
Figure 2-1 shows the RMON MultiProbe Module installed in an ONline System Concentrator. You can also install the RMON MultiProbe Module in the ONcore MultiProtocol Switching Hub using an ONline Module Adapter Kit. RMON MultiProbe Module Figure 2-1. RMON MultiProbe Module in the ONline System Concentrator 4. Using your fingers, tighten the spring-loaded screws on the front of the module faceplate (do not overtighten). Once you install the RMON MultiProbe Module, it begins diagnostic testing automatically.
Connecting a Terminal You can connect a terminal or workstation running a terminal emulation program to the RMON MultiProbe Module RS-232 port to: ❑ Configure IP address information for the RMON MultiProbe Module interfaces ❑ Display the RMON MultiProbe Module configuration To connect a terminal to the RMON MultiProbe Module: 1. Verify that the terminal is configured as follows: ❑ 8-bit data ❑ No parity ❑ 1 stop bit ❑ 9600 baud rate Note: The RMON MultiProbe Module does not support XON and XOFF.
Initializing the RMON MultiProbe Module Once you complete module installation procedures and attach an RS-232 cable to the front panel, you can initialize the RMON MultiProbe Module and display the configuration menus. To initialize the RMON MultiProbe Module and display the configuration menus: 1. Press the front panel Reset button. Pressing the Reset button warm-starts the module. (Refer to Chapter 3, Configuring the Module, for a description of warm and cold starts.
The Main configuration menu appears (Figure 2-2). Main menu Rev x.xx (Rev x.x) 1 Modify/View configuration values -> 2 Download new firmware -> 3 Warm start and Exit 4 Cold start and Exit Enter one of: 1 2 3 4 ? Figure 2-2. Main Configuration Menu 5. Refer to Chapter 3, Configuring the Module, for a description of the configuration menus and instructions for configuring the module and its interfaces using the configuration menus.
Monitoring the Front Panel Use the LEDs on the front panel of the RMON MultiProbe Module to monitor the status of the module and the module interfaces. The RMON MultiProbe Module front panel also contains a recessed Reset button for resetting the module. Resetting the module is equivalent to a warm start. Refer to Chapter 3, Configuring the Module, the section titled Re-Initializing the RMON MultiProbe Module for information on warm and cold starts.
Figure 2-3 shows the LEDs, Reset button, and RS-232 port on the module faceplate. Each LED indicates the state of the module or interface as described in Table 2-2. Interface 1 LEDs Interface 2 LEDs Interface 3 LEDs Status LEDs Collision LEDs Activity LEDs Module Status Module Reset Serial Activity RS-232/SLIP Port 25-Pin Connector Figure 2-3.
Table 2-2. Module LED Interpretations LED Name Color Interface1 Interface 2 Interface 3 (Interface Status) Green Collision (Interface Collision) Yellow Activity (Interface Activity) Yellow Module Status Green State Indicates Off Interface is set to isolated (not assigned to any network). On Interface is configured to a network and is enabled. Blinking LED blinks briefly during diagnostics. Off Interface is not experiencing collisions or is isolated.
Table 2-2. Module LED Interpretations (Continued) LED Name Color State Indicates Serial Activity Yellow Blinking Activity over the RS-232 port. Blinks once for each character received or transmitted. Reset Button Black When pressed Re-initializes module software and resets module hardware.
3 Configuring the Module This chapter describes how to configure the 3Com Ethernet RMON MultiProbe Module for operation.
Configuration Menu Overview This section describes the RMON MultiProbe Module configuration menus and how to use the menus to configure the module and interface. The configuration menus enable you to configure the module and interfaces using a terminal attached to the front panel RS-232 port and an RS-232 null-modem cable. (Refer to Appendix A, Specifications, for information on cable pinouts.
Figure 3-1 is a flow chart of the RMON MultiProbe Module configuration menus.
1 Modify/View Network Settings Menu 1 2 3 4 5 Modify/View settings for network interface 1 Modify/View settings for network interface 2 Modify/View settings for network interface 3 Default gateway IP address BOOTP network interface Enter one of: 1 2 3 4 5 ? 1,2,and 3 Modify/View network interface x settings MAC address 08 11 22 33 44 55 1 IP address 2 Subnet mask S Save changes and exit 0 Cancel changes and exit Enter one of: 1 2 S 0? Figure 3-1.
Modifying Configuration Menu Values The configuration menus contain options that enable you to: ❑ Display additional configuration menus ❑ Display and modify configuration values To display a menu from within a menu, type the number of the option and press Return. To display or modify a value from a configuration menu: 1. Type the number of the option you want to display or modify and press Return. The configuration menus have a timeout value of 2 minutes.
Using the Main Configuration Menu Use the Main configuration menu to: ❑ Display the Modify/View Configuration Values menu ❑ Download new firmware ❑ Initiate a warm or cold start To display the Main configuration menu: 1. Press the front panel Reset button to re-initialize the module. 2. Hold down the X key within 15 seconds of powering up or resetting the module. 3. If you miss the 15-second window, press the Reset button to re-initialize (warm start) the module. 4.
The Main configuration menu appears (Figure 3-2). Main menu Rev x.xx (Rev x.x) 1 Modify/View configuration values -> 2 Download new firmware -> 3 Warm start and Exit 4 Cold start and Exit Enter one of: 1 2 3 4 ? Figure 3-2. Main Configuration Menu The configuration menus for options 1 and 2 are described in the following sections. Options 3 and 4 are described in the section Re-initializing the RMON MultiProbe Module later in this chapter.
Table 3-1 describes the Main menu options. Table 3-1. Main Configuration Menu Description Option 1. Modify/View configuration menu 2. Download new firmware 3. Warm start and Exit 4. Cold start and Exit Result Displays the Modify/View Configuration Value menu. For a description of this menu, refer to the section Using the Modify/View Configuration Value Menu later in this chapter. Downloads new firmware to FLASH memory.
Using the Download Menu Use the Download menu to: ❑ Configure the RMON MultiProbe Module for a software download ❑ Display the current IP address and subnet mask for each interface To display the Download menu, select option 2 from the Main configuration menu. Figure 3-3 is an example of the Download menu. . Download Menu Rev x.xx 1 Filename to download -> /chome/spe/onown/rmon_mod/mar06/ax3_field.rom.cf.1.20 2 tftp server IP address -> 151.104.3.
Table 3-2 describes the Download menu options. Table 3-2. Download Menu Description Option 1. Filename to download Result Displays the pathname of the file to download and enables you to enter a new value. The filename can be a maximum of 127 characters. If the download file: ❑ Resides in the /tftpboot directory of the server, you only need to enter the filename. ❑ Does not reside in the /tftpboot directory, you must entire the complete directory path. 2. TFTP Server IP address 3.
Using the Modify/View Configuration Values Menu Use the Modify/View Configuration Values menu to: ❑ Set module values (such as date and time) ❑ Display the Modify/View Network Settings menu ❑ Display the Modify/View Serial Port Settings menu To display this menu, select option 1 from the Main configuration menu. Figure 3-4 is an example of the Configuration Values menu. Modify/view configuration values menu Rev N.
Table 3-3 describes the Configuration Values menu options. Table 3-3. Modify/View Configuration Values Menu Description Option 1. Modify/View network settings 2. Autodiscovery Echo Interval 3. Date 4. Time 5. Timezone 6. Modify/View Serial Port settings Result Displays the Modify/View Network Settings menu. For a description of this menu, refer to the section Using the Modify/View Network Settings menu.
Table 3-3. Modify/View Configuration Values Menu Description (Continued) Option S Save Changes and Exit 0 Cancel Changes and Exit Result Saves all changes to the configuration menu to non-volatile memory and returns to the Main menu. Cancels changes to the configuration menu and returns to the Main menu. Note: All configuration settings except for the Autodiscovery Echo Interval field value are preserved after a cold start.
Figure 3-5 is an example of the Serial Configuration Values menu options. Modify/view serial configuration values menu Rev N.NN 1 Serial port IP address 187.187.187.193 2 Serial port subnet mask 255.255.255.
Table 3-4 describes the Serial Configuration Values menu options. Table 3-4. Modify/View Serial Configuration Values Menu Description Option Result Serial Port IP Address Displays the serial IP address of the RMON MultiProbe Module and enables you to enter a new IP address. 2 Not used. 1 Serial Port Subnet Mask 3 Serial Port Speed Displays the serial port speed that sets the baud rate used by the serial interface and enables you to enter a new value.
Table 3-4. Modify/View Serial Configuration Values Menu Description (Continued) Option 5 Modem Init String 6 Modem Hangup String 7 Modem Connect Response 8 Modem No Connect Response S Save Changes and Exit 0 Cancel Changes and Exit Result Display the modem init string and enables you to enter a new value. In modem mode, this string initializes the modem. Displays the modem hangup string and enables you to enter a new value. In modem mode, this string hangs up the modem.
Modem Init Strings and Hangup Strings This section describes the format of the modem: ❑ Init Strings ❑ Hangup Strings To allow the RMON MultiProbe Module to communicate with a modem or a serial data switch, use the modem Init String and Hangup String. The strings contain embedded commands to control how the module interacts with a remote device through the serial interface. Commands are represented as 2-character sequences beginning with the ^ character.
Table 3-5. Modem Init Strings and Hangup Strings (Continued) Command Result ^w Waits for the reply string that follows which is terminated by the next command or the end of string. Partial and case insensitive matching is applied (that is, if the RMON MultiProbe Module finds the reply string [any case combination] anywhere in the received string, the match is found). If the current timeout elapses without a match, the module ignores the remaining control string. ^! The ^ character.
You may also insert binary data into the data stream using the following control sequence for each byte of binary data: ^0x## (where ## is the hexadecimal representation of the data byte). Two ASCII characters (0-9, a-f, A-F) must follow the ^0x control prefix. For example, ^0x0D^0x0A is interpreted as a carriage return followed by a line feed.
The RMON MultiProbe Module uses the information in this string to adjust the bps rate of the serial interface once you establish a modem connection. No Connect Response - An ASCII string that contains response codes generated by a modem to report the reason for a connection attempt failure. The response codes are delimited by the first character in the string.
Figure 3-6 is an example of the Modify/View Network Settings menu. Modify/View Network Settings Menu 1 Modify/View settings for network interface 1 2 Modify/View settings for network interface 2 3 Modify/View settings for network interface 3 4 Default gateway IP address 151.104.3.6 5 BOOTP network interface 1 S Save changes and exit 0 Cancel changes and exit Enter one of: 1 2 3 4 5 S 0? Figure 3-6.
Table 3-7 describes the Modify/View Network Settings menu options. Table 3-7. Modify/View Network Settings Menu Description Option 1 Modify/View settings for network interface 1 2 Modify/View settings for network interface 2 3 Modify/View settings for network interface 3 4 Default gateway IP address 5 BOOTP network interface Result Displays the Modify/View Network Interface 1 Settings menu.
Table 3-7. Modify/View Network Settings Menu Description (Continued) Option S Save Changes and Exit 0 Cancel Changes and Exit Result Saves all changes made to the configuration menu to non-volatile memory and returns to the Modify/View Configuration Values menu. Cancels changes made to the Configuration menu and returns to the Modify/View Configuration Values menu. Using the Modify/View Network Interface Settings Menus Each interface has a Modify/View Network Interface Settings menu.
. Modify/View Network Interface 1 Settings Menu MAC address 08 11 22 33 44 55 1 IP address 2 Subnet mask 151.104.6.7 255.255.255.0 S Save changes and exit 0 Cancel changes and exit Enter one of: 1 2 S 0? Figure 3-7.
Table 3-8 describes the Modify/View Network Interface Settings menu options. Table 3-8. Modify/View Network Interface Settings Menu Description Option 1 IP address 2 Subnet Mask S Save Changes and Exit 0 Cancel Changes and Exit Result Displays the interface IP addressand enables you to enter a new value. Displays the interface subnet mask and enables you to enter a new value. Saves all changes made to the Interface menu to non-volatile memory and returns to the Modify/View Network Settings menu.
Configuring the Module and Interfaces Before the RMON MultiProbe Module can become operational, you must configure the following parameters for the module and interfaces: ❑ IP address (for each interface) ❑ Subnet mask (for each interface) ❑ Default gateway (for the module) Assigning the Interface IP Address and Subnet Mask You must assign a unique IP network address for each interface.
This configuration sets up one interface for each bridged segment. To assign an IP address or subnet mask for an interface: 1. From the Main menu, select option 1, Modify/View Configuration Values, and press Return. The Modify/View Configuration Values menu is displayed (see Figure 3-4). 2. From the Modify/View Configuration Values menu, select option 1, Modify/View Network Settings, and press Return. The Modify/View Network Settings menu is displayed (see Figure 3-6). 3.
Assigning the Module Default Gateway You must assign a default gateway for the RMON MultiProbe Module. To assign a default gateway: 1. From the Main menu, select option 1, Modify/View Configuration Values, and press Return. The Modify/View Configuration Values menu is displayed (see Figure 3-4). 2. From the Modify/View Configuration Values menu, select option 1, Modify/View Network Settings, and press Return. The Modify/View Network Settings menu is displayed (see Figure 3-6). 3.
Using BOOTP to Configure the Module and Interfaces This section describes: ❑ BOOTP Description ❑ BOOTP Configuration Process ❑ BOOTP Requirements ❑ Using BOOTP BOOTP Description BOOTP (Bootstrap Protocol) is a UDP/IP-based (User Datagram Protocol/Internet Protocol) broadcast protocol which allows a device to configure itself dynamically without user intervention. Use BOOTP to download configuration information from a BOOTP server to the RMON MultiProbe Module interface configured for BOOTP.
To configure other interfaces, use the Modify/View Network Settings configuration menu to change the BOOTP network interface.
# /etc/bootptab: database for bootp server (/etc/bootpd) # Blank lines and lines beginning with '#' are ignored.
Assigning Interfaces to Networks To assign RMON MultiProbe Module interfaces to networks, you can use either: ❑ DIP switch settings, if your hub is unmanaged (an ONline or ONcore management module is not installed in the hub). ❑ ONline or ONcore network management commands (if an ONline or ONcore management module is installed in the hub).
Using the DIP Switch to Assign Networks If you have an unmanaged hub, use the DIP switch on the module to assign networks to the RMON MultiProbe Module interfaces. However, the DIP switch settings are ignored if the following two conditions are met: ❑ A network management module is installed in the hub. ❑ The master management module has DIP_CONFIGURATION disabled. The RMON MultiProbe Module contains an 8-position DIP switch (SW1).
Table 3-9 describes the positions of the DIP switches required to configure and enable the RMON MultiProbe Module interfaces to corresponding Ethernet networks. As the table shows, switches 1, 2, 6, 7, and 8 are not used. Table 3-9.
Using Management Commands to Assign Interfaces to Networks With a terminal attached to a 3Com management module console, you can use management commands to assign the RMON MultiProbe Module interfaces to networks. The following 3Com network management modules enable you to assign interfaces to networks: ❑ ONline Ethernet Management Module (EMM) (Version V4.20) ❑ ONcore Distributed Management Module (DMM) (Version V2.
Management Command Examples To assign interface 1 on the RMON MultiProbe Module in slot 7 to Ethernet 1, use the following network management command: SET PORT 7.1 NETWORK ETHERNET_1 Port 07.01 network id set to ETHERNET_1. To assign interface 1 to isolated, use the following command: SET PORT 7.1 NETWORK ISOLATED Port 07.01 network id set to ISOLATED. To assign interface 3 on the RMON MultiProbe Module in slot 7 to Ethernet 3, use the following network management command: SET PORT 7.
Saving Network Assignments After you make configuration changes to the module, issue the SAVE MODULE_PORT command as shown to save the interface network configurations. SAVE MODULE_PORT Note: Failure to save the interface network configurations may result in loss of configuration data. Showing Module and Interface Configurations To display module and interface configuration information, use the following management commands: ❑ SHOW MODULE ❑ SHOW PORT These commands are described below.
The following output is an example of the SHOW MODULE VERBOSE command issued for an RMON MultiProbe Module installed in slot 6 of an ONline System Concentrator: ONline> show module 6 verbose Slot Module Version Network General Information ---- ------------- ------- ------------- ------------------06 RMON-EMP-3 Vx.xx PER_PORT Module is up RMON-EMP-3: Ethernet RMON MultiProbe Boot Version: Native Software Version: Native Boot Software Version: vx.xx vx.xx vx.
The following output is an example of the SHOW PORT VERBOSE ALL command issued for a module installed in slot 6: ONline> show port 6.all verbose Port Display for Module RMON-EMP-3: Port Mode Status Network General Information ----- -------- ------------------- ------------ --------------------06.01 LOGICAL OKAY ETHERNET_1 Port Connector: IP Address: Station Address: 06.02 LOGICAL OKAY Port Connector: IP Address: Station Address: 06.
Re-initializing the RMON MultiProbe Module Once you install and configure the RMON MultiProbe Module and it has successfully completed its diagnostics, the module functions without user intervention.
Warm-Starting the RMON MultiProbe Module When you re-initialize the RMON MultiProbe Module by initiating a warm start (for example, by pressing the Reset button), all collected information stored in the module Random Access Memory (RAM) is lost. Configuration information, however, is not lost. Table 3-10 lists the information preserved and lost upon a warm start of the module. Table 3-10.
Cold-Starting the RMON MultiProbe Module When you re-initialize the RMON MultiProbe Module by initiating a cold start (for example, by selecting option 4 from the Main Configuration menu), all network management information is lost, with the exception of the following interface and module configuration information: ❑ IP address (for each interface) ❑ Subnet mask (for each interface) ❑ Default gateway (for the module) Table 3-11 lists the information that is preserved and lost upon a cold start of the
Table 3-11.
4 Troubleshooting This chapter provides hardware troubleshooting information which you can use if the RMON MultiProbe Module fails to operate correctly. If after reviewing the information in this chapter you cannot correct the problem, contact your 3Com representative for further assistance.
Troubleshooting Startup Problems This section describes how to troubleshoot startup problems by monitoring the Interface Status LEDs and the Module Status LED on the RMON MultiProbe Module faceplate. When you first install the RMON MultiProbe Module in the hub, the module runs the following diagnostics: ❑ SRAM Data Bus ❑ SRAM Address Bus The Interface Status LEDs display a pattern during the execution of each diagnostic test. The patterns correspond to the test as indicated in Table 4-1. Table 4-1.
Troubleshooting Malfunctions Table 4-2 lists the symptoms of operating malfunctions for the RMON MultiProbe Module and shows possible causes and corrective actions for these malfunctions. Table 4-2. Troubleshooting Malfunctions Symptom Possible Cause Corrective Action Module Status LED does not illuminate or blink An unrecoverable error in the module hardware or software has occured. Contact the 3Com Customer Service Center. Module Status LED blinks continuously Interprocessor failure.
Table 4-2. Troubleshooting Malfunctions (Continued) Symptom Module does not power up Possible Cause Corrective Action Module is not fitted correctly against backplane. Remove the module from the slot and replace it in the slot. This action ensures that the module is fitted correctly. Place the module in a different slot in the hub. The hub is not receiving electrical power. Check that the hub is receiving power. Test for power at the wall outlet by plugging in another device.
Table 4-2. Troubleshooting Malfunctions (Continued) Symptom Attached terminal does not operate Possible Cause Corrective Action The terminal is malfunctioning. Follow the troubleshooting proceduresrecommended by the terminal manufacturer. Cables are unattached. Make sure that the cable connections at both ends are secure. Cables are not the correct type.
Table 4-2. Troubleshooting Malfunctions (Continued) Symptom Possible Cause Corrective Action The terminal fails to respond to commands entered at the keyboard The terminal is not receiving commands. Power off the terminal, wait 30 seconds, and then power it on again. The keyboard cable is attached incorrectly. If the terminal still does not respond to commands, power off the terminal and disconnect the keyboard cable. Then reattach the keyboard cable and power on the terminal.
Table 4-2. Troubleshooting Malfunctions (Continued) Symptom The terminal fails to respond to commands entered at the keyboard (continued) Panic message appears on the terminal Possible Cause Corrective Action The RS-232 cable pinouts are wired incorrectly or the cable is defective. Try a different RS-232 cable. Refer to Appendix A, Specifications, for information on RS-232 cable pinouts. The terminal is malfunctioning. Repair or replace the terminal. Module parameters are lost from NVRAM.
Troubleshooting Network Connectivity Problems If the RMON MultiProbe Module does not appear to be transmitting or receving traffic properly on the network, it could indicate that there is no connection to the network. Try performing one or more of the following troubleshooting actions: ❑ From the 3Com management interface (for example, ONline management module), verify that the RMON MultiProbe Module interfaces are set to the appropriate networks.
Technical Assistance You can receive assistance for installing and troubleshooting the Ethernet RMON MultiProbe Module by calling either your 3Com reseller or 3Com Technical Support.
A Specifications This appendix lists specifications for the 3Com RMON MultiProbe Module, including: ❑ Electrical Specifications ❑ Environmental Specifications ❑ Mechanical Specifications ❑ General Specifications ❑ Connectors and Cables ❑ Memory Configuration Allocation Specifications A - 1
Electrical Specifications Power Requirements +5 V +/- 4% +12 V +/- 5% 2.5 A for +5 V 0.008 A for + 12 V Fuse 4.0 A Fast Blow for +5 V 0.5 A Fast Blow for +12 V Consumption 13 watts Environmental Specifications Operating Temperature 0° to 40° C (32° to 122° F) Storage Temperature -30° to 65° C (22° to 149° F) Humidity Less than 95%, noncondensing BTU/hr 44.
Mechanical Specifications Width 1.0” Length 10.275” Height 8.5” Weight 1.
Ethernet Interface 3 Ethernet 3 or Isolated Configuration Using SLIP, BOOTP, inband and out-of-band management Connectors and Cables Use the information in this section to ensure that the cables and connecting hardware meet requirements. For proper operation, use only approved cables when you install all equipment.
RS-232 25-Pin Port Connector Pinouts This section describes the serial port pinouts for the RS-232 25-pin connector on the RMON MultiProbe Module faceplate. Table A-1 lists the pinouts for the RS-232 25-pin connector. Table A-1.
RS-232 Crossover Cable for a PC or Terminal This section describes pinouts for an RS-232 crossover cable when you connect a PC or terminal to the RMON MultiProbe Module. The RMON MultiProbe Module end of the cable is a 25-pin female connector. Figure A-1 represents the minimum pinouts required for a crossover cable Figure A-1.
Modem Cable Pinouts You can connect a modem to the RMON MultiProbe Module to allow a remote client to have out-of-band access to the module if the main network link fails. For example, you can access the RMON MultiProbe Module using Serial Line Internet Protocol (SLIP).
Modem Modem ONline System Concentrator Straight-Through Cable Ethernet Null-Modem Cable Direct SLIP Connection ONline System Concentrator Ethernet Figure A-2.
Using the RMON MultiProbe Module SLIP Address To communicate with the RMON MultiProbe Module, the client software must use the RMON MultiProbe Module local SLIP address as the module destination IP address. For information on configuring a SLIP route to a device, refer to the workstation UNIX® manual. Over a SLIP connection, the RMON MultiProbe Module supports the following configuration: ❑ Various baud rates (refer to the Serial Configuration menu in Chapter 3, Configuring the Module).
RS-232 Straight-Through Cable Table A-2 represents the minimum pinouts required for an RS-232 straight-through cable. The modem end of the cable is a 25-pin male connector. The RMON MultiProbe Module end of the cable is a 25-pin female connector. Table A-2.
RS-232 Null-Modem Cable Figure A-3 represents the minimum pinouts required for an RS-232 null-modem cable. The terminal end of the cable is a 25-pin female connector. The RMON MultiProbe Module end of the cable is a 25-pin female connector. Figure A-3.
Memory Configuration Allocation This section describes how the 8 MB of RAM shipped with the RMON MultiProbe Module is allocated for each Ethernet table. Table A-3 lists the maximum number of entries for each Ethernet table. Table A-3.
B Technical Support 3Com provides easy access to technical support information through a variety of services.
Email Technical Support You can contact the Integrated Systems Division (formerly Chipcom) on the Internet for technical support using the e-mail address techsupp@chipcom.com. World Wide Web Site You can access the latest networking information on the 3Com World Wide Web site by entering our URL into your Internet browser: http://www.3Com.
When you contact your network supplier for assistance, have the following information ready: ❑ Diagnostic error messages ❑ A list of system hardware and software, including revision levels ❑ Details about recent configuration changes, if applicable If you are unable to contact your network supplier, see the following section on how to contact 3Com. Support from 3Com If you are unable to receive support from your network supplier, technical support contracts are available from 3Com.
For access to customer service for all 3Com products, call (800) 876-3266. You can also contact the Integrated Systems Division (ISD) on the Internet by using the e-mail address techsupp@chipcom.com. Returning Products for Repair A product sent directly to 3Com for repair must first be assigned a Return Materials Authorization (RMA) number. A product sent to 3Com without an RMA number will be returned to the sender unopened, at the sender’s expense.
3. Enter your full Internet e-mail address as the password (for example, jdoe@company.com). 4. Change to the mib or schema directory using the cd /pub/mibs or cd /pub/mibs/schemas command. 5. To view the 3Com MIB, OID, or schema entries, enter the dir command. ❑ To pause the display, press [CTRL-S]. ❑ To continue the display, press [CTRL-Q]. 6. Copy the MIB, OID, or schema files to your current directory using the appropriate command (for example, get chipcom.mib). 7.
Index Numerics C 3Com Bulletin Board Service (3ComBBS), B-3 3Com Management Module console port, 3-35 ASCII Control Characters, 3-18 Assigning default gateway, 3-26 IP address, 3-26 subnet mask, 3-26 Attaching workstation, 2-7 Audience guide, xiii Autodiscovery echo interval, 3-12 Cables, A-4 Cold start configuration information, 3-42 Community Name, 4-8 Community string default value, 4-8 Compliance with RMON standard, 1-7 Configuration menus displaying, 3-5 modifying, 3-5 overview, 3-2 Connect Respons
Download pathname, 3-10 E Electrical specifications, A-2 Electrostatic discharge precautionary procedures, 2-2 Environmental specifications, A-2 Ethernet RMON Groups, 1-3 Event Group, 1-3 Filter Group, 1-3 History Group, 1-3 Host Group, 1-3 HostTopN Group, 1-4 Matrix Group, 1-4 Packet Capture Group, 1-4 Statistics Group, 1-4 Ethernet RMON groups Alarm Group, 1-3 Ethernet RMON standard, 1-3 Ethernet tables maximum entries, A-12 F FCC notice, ii Front panel LEDs, 2-11 monitoring, 2-10 reset button, 2-13 H
no connect response, 3-16 response strings, 3-19 Modem Init string, 3-17 Modify/View Configuration Values menu description, 3-12 options, 3-11 Modify/View Network Interface Settings menu description, 3-25 options, 3-23 Modify/View Network Settings menu description, 3-22 options, 3-20 Modify/View Serial Configuration Values menu description, 3-15 options, 3-13 Module Configurations saving and showing, 3-37 Module LEDs interpreting, 2-12 N Network assignments saving, 3-37 Network connectivity problems troubl
operation, 1-8 out-of-band connection, A-7 overview, 1-5 procedures for handling, 2-2 re-initializing, 3-40 reset button, 2-10 RS-232 25-pin connector, A-5 sample application , 1-9 saving configuration, 3-37 serial IP address, 3-13, 3-15 showing configurations, 3-37 software download , 3-9 subnet mask, 3-9 supports, 1-5 Theory of Operation, 1-8 troubleshooting, 4-3 unpacking procedures, 2-4 using a modem, A-7 warm-starting, 3-41 RMON Overview, 1-2 RMON Probe, 1-2 RMON-compliant devices, 1-2 RS-232 25-Pin co
V VDE compliance, ii W Warm start, 2-10 configuration information, 3-41 Index 5
