User Guide
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... THIS GUIDE User Guide Overview 3 Intended Audience 5 Conventions 5 Related Documentation 5 1 GETTING STARTED About the Switch 2916 and 2924 12 Front Panel Detail 13 LED Status Indicators 14 System Specifications 15 Installing the Switch 16 Setting Up for Management 17 Methods of Managing a Switch 17 Switch Setup Overview 18 Using the Command Line Interface (CLI 21 Setting Up Web Interface Management 25 Setting Up SNMP Management V1 or V2 26 Default Users and Passwords 27 Upgrading Software using the CLI 27 2 USING THE 3COM WEB INTERFACE Starting the 3Com Web Interface 28...
... THIS GUIDE User Guide Overview 3 Intended Audience 5 Conventions 5 Related Documentation 5 1 GETTING STARTED About the Switch 2916 and 2924 12 Front Panel Detail 13 LED Status Indicators 14 System Specifications 15 Installing the Switch 16 Setting Up for Management 17 Methods of Managing a Switch 17 Switch Setup Overview 18 Using the Command Line Interface (CLI 21 Setting Up Web Interface Management 25 Setting Up SNMP Management V1 or V2 26 Default Users and Passwords 27 Upgrading Software using the CLI 27 2 USING THE 3COM WEB INTERFACE Starting the 3Com Web Interface 28...
User Guide
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... VLAN Settings 105 Modifying Port VLAN Settings 107 Removing VLANs 108 9 CONFIGURING IP AND MAC ADDRESS INFORMATION Defining IP Addressing 109 Configuring ARP Settings 110 Configuring Address Tables 114 10 CONFIGURING IGMP SNOOPING Introduction 123 Defining IGMP Snooping 124 11 CONFIGURING SPANNING TREE Viewing Spanning Tree 127 Defining Spanning Tree 130 Modifying Spanning Tree 133 12 CONFIGURING SNMP Defining SNMP Communities 136 Removing SNMP Communities 138 Defining SNMP Traps 139 Removing SNMP Traps 140 13 CONFIGURING QUALITY OF SERVICE Viewing...
... VLAN Settings 105 Modifying Port VLAN Settings 107 Removing VLANs 108 9 CONFIGURING IP AND MAC ADDRESS INFORMATION Defining IP Addressing 109 Configuring ARP Settings 110 Configuring Address Tables 114 10 CONFIGURING IGMP SNOOPING Introduction 123 Defining IGMP Snooping 124 11 CONFIGURING SPANNING TREE Viewing Spanning Tree 127 Defining Spanning Tree 130 Modifying Spanning Tree 133 12 CONFIGURING SNMP Defining SNMP Communities 136 Removing SNMP Communities 138 Defining SNMP Traps 139 Removing SNMP Traps 140 13 CONFIGURING QUALITY OF SERVICE Viewing...
User Guide
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C PIN-OUTS Console Cable 189 Null Modem Cable 190 PC-AT Serial Cable 190 Modem Cable 190 Ethernet Port RJ-45 Pin Assignments 191 D TROUBLESHOOTING Problem Management 192 Troubleshooting Solutions 192 E 3COM CLI REFERENCE GUIDE Getting Started with the Command Line Interface 195 CLI Commands 196 F GLOSSARY ...206 G OBTAINING SUPPORT FOR YOUR 3COM PRODUCTS Register Your Product to Gain Service Benefits 212 Solve Problems Online 212 Purchase Extended Warranty and Professional Services 212 Access Software Downloads 213 Contact Us 213 REGULATORY NOTICES
C PIN-OUTS Console Cable 189 Null Modem Cable 190 PC-AT Serial Cable 190 Modem Cable 190 Ethernet Port RJ-45 Pin Assignments 191 D TROUBLESHOOTING Problem Management 192 Troubleshooting Solutions 192 E 3COM CLI REFERENCE GUIDE Getting Started with the Command Line Interface 195 CLI Commands 196 F GLOSSARY ...206 G OBTAINING SUPPORT FOR YOUR 3COM PRODUCTS Register Your Product to Gain Service Benefits 212 Solve Problems Online 212 Purchase Extended Warranty and Professional Services 212 Access Software Downloads 213 Contact Us 213 REGULATORY NOTICES
User Guide
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... be used in your network. It covers summaries of hardware and software features and also the following topics: ■ About the Switch 2916 and 2924 ■ Front Panel Detail ■ LED Status Indicators ■ System Specifications ■ Installing the Switch ■ Setting Up for Management ■ Methods of Managing a Switch ■ Switch Setup Overview ■ Using the Command Line Interface (CLI) ■ Setting Up Web Interface Management ■ Setting Up SNMP Management V1 or V2 ■ Default Users and Passwords ■ Upgrading Software using the CLI
... be used in your network. It covers summaries of hardware and software features and also the following topics: ■ About the Switch 2916 and 2924 ■ Front Panel Detail ■ LED Status Indicators ■ System Specifications ■ Installing the Switch ■ Setting Up for Management ■ Methods of Managing a Switch ■ Switch Setup Overview ■ Using the Command Line Interface (CLI) ■ Setting Up Web Interface Management ■ Setting Up SNMP Management V1 or V2 ■ Default Users and Passwords ■ Upgrading Software using the CLI
User Guide
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... 256 VLANs ■ Access control lists (ACLs) ■ Port-based mirroring Summary of receiving, but not sending pause frames. Supported (using the IEEE Std 802.ID, 1998 Edition): Eight traffic queues per port If fiber SFP transceivers are capable of Table 1 summarizes the hardware features supported by the Switch 2916 Hardware Features and 2924. The Switch 2916 and 2924 ports are used, Auto MDIX is not supported. Table 1 Hardware Features Feature Addresses Auto-negotiation Forwarding Modes Duplex Modes Auto...
... 256 VLANs ■ Access control lists (ACLs) ■ Port-based mirroring Summary of receiving, but not sending pause frames. Supported (using the IEEE Std 802.ID, 1998 Edition): Eight traffic queues per port If fiber SFP transceivers are capable of Table 1 summarizes the hardware features supported by the Switch 2916 Hardware Features and 2924. The Switch 2916 and 2924 ports are used, Auto MDIX is not supported. Table 1 Hardware Features Feature Addresses Auto-negotiation Forwarding Modes Duplex Modes Auto...
User Guide
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... Management the switch using the Console Port ■ Setting Up Web Interface Management ■ Setting Up SNMP Management V1 or V2 ■ Default Users and Passwords Methods of Managing a Switch To manage your network. This is known as managing the switch. Setting Up for Management 17 Setting Up for basic operations of the switch including setting and viewing the IP address, configuring user accounts, upgrading switch firmware, and more. Web Interface Each switch has an internal set up of the switch and the different methods of accessing the management software to manage a switch...
... Management the switch using the Console Port ■ Setting Up Web Interface Management ■ Setting Up SNMP Management V1 or V2 ■ Default Users and Passwords Methods of Managing a Switch To manage your network. This is known as managing the switch. Setting Up for Management 17 Setting Up for basic operations of the switch including setting and viewing the IP address, configuring user accounts, upgrading switch firmware, and more. Web Interface Each switch has an internal set up of the switch and the different methods of accessing the management software to manage a switch...
User Guide
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... SNMP See page 26 Web Interface Connect over the network. See page 23 Feature Management How do not intend to the label on page 27. For more information on default users and changing default passwords, see "Default Users and Passwords" on the rear of the switch which details the default IP address. Connect to manually Yes configure the IP information? See page 17 Command Line Interface (basic setup only) Connect using DHCP See page 20 The switch uses its default...
... SNMP See page 26 Web Interface Connect over the network. See page 23 Feature Management How do not intend to the label on page 27. For more information on default users and changing default passwords, see "Default Users and Passwords" on the rear of the switch which details the default IP address. Connect to manually Yes configure the IP information? See page 17 Command Line Interface (basic setup only) Connect using DHCP See page 20 The switch uses its default...
User Guide
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... access and change the default passwords, you must log in Table 5. Bootcode can only be a new bootcode file to download. 3 To set the switch to boot from the Command Line Interface (CLI). Upgrading Software using the CLI This section describes how to upgrade software to your Switch from the new software you have downloaded, enter the following: reboot The following prompt displays: Are you sure you want to reboot the system (yes, no password) Access Level Management - See "Upgrade the Firmware...
... access and change the default passwords, you must log in Table 5. Bootcode can only be a new bootcode file to download. 3 To set the switch to boot from the Command Line Interface (CLI). Upgrading Software using the CLI This section describes how to upgrade software to your Switch from the new software you have downloaded, enter the following: reboot The following prompt displays: Are you sure you want to reboot the system (yes, no password) Access Level Management - See "Upgrade the Firmware...
User Guide
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... WEB INTERFACE This section provides an introduction to the user interface, and includes the following topics: ■ Starting the 3Com Web Interface ■ Understanding the 3Com Web Interface ■ Saving the Configuration ■ Resetting the Device ■ Restoring Factory Defaults ■ Logging Off the Device Starting the 3Com Web Interface This section includes the following topics: ■ Multi-Session Web Connections ■ Accessing the 3Com Web Interface Multi-Session Web Connections The Multi-Session web connections feature enables 10 users to users for the switch...
... WEB INTERFACE This section provides an introduction to the user interface, and includes the following topics: ■ Starting the 3Com Web Interface ■ Understanding the 3Com Web Interface ■ Saving the Configuration ■ Resetting the Device ■ Restoring Factory Defaults ■ Logging Off the Device Starting the 3Com Web Interface This section includes the following topics: ■ Multi-Session Web Connections ■ Accessing the 3Com Web Interface Multi-Session Web Connections The Multi-Session web connections feature enables 10 users to users for the switch...
User Guide
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... password is managed in the local database. Two access levels exist on device and allows 10 users to users for users using the System Access Interface. There is be created and access the switch concurrently. This section contains the following topics: ■ Viewing System Access Settings ■ Defining System Access ■ Modifying System Access ■ Removing System Access The factory default is always one management level user configured for the switch. The Multi-Session web feature is enabled...
... password is managed in the local database. Two access levels exist on device and allows 10 users to users for users using the System Access Interface. There is be created and access the switch concurrently. This section contains the following topics: ■ Viewing System Access Settings ■ Defining System Access ■ Modifying System Access ■ Removing System Access The factory default is always one management level user configured for the switch. The Multi-Session web feature is enabled...
User Guide
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Configuring System Access 47 Defining System The System Access Setup Page allows network administrators to 10 characters. ■ Confirm Password - Provides users with read access rights. ■ Password - The Users are created, and the device is Management. ■ Management - Verifies the password. 2 Define the fields. 3 Click Apply. The System Access Setup Page opens: Figure 22 System Access Setup Page The System Access Setup Page contains the following fields: ■ User Name - Defines the user password. Defines...
Configuring System Access 47 Defining System The System Access Setup Page allows network administrators to 10 characters. ■ Confirm Password - Provides users with read access rights. ■ Password - The Users are created, and the device is Management. ■ Management - Verifies the password. 2 Define the fields. 3 Click Apply. The System Access Setup Page opens: Figure 22 System Access Setup Page The System Access Setup Page contains the following fields: ■ User Name - Defines the user password. Defines...
User Guide
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... filters that are reactivated from the Port Administration Setup Page. ICMP packets that determine traffic classifications. Either the DSCP value or the IP Precedence value is used to match packets to the ACL. Ports are filtered by IGMP message type. ■ Source Address - Defining IP Based ACLs Access Control Lists (ACL) allow network managers to the network administrator, or packet is 256. Indicates the ACL forwarding...
... filters that are reactivated from the Port Administration Setup Page. ICMP packets that determine traffic classifications. Either the DSCP value or the IP Precedence value is used to match packets to the ACL. Ports are filtered by IGMP message type. ■ Source Address - Defining IP Based ACLs Access Control Lists (ACL) allow network managers to the network administrator, or packet is 256. Indicates the ACL forwarding...
User Guide
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... Address - The ARP Settings Setup Page opens: Figure 60 ARP Settings Setup Page The ARP Settings Setup Page contains the following fields: ■ VLAN - 112 CHAPTER 9: CONFIGURING IP AND MAC ADDRESS INFORMATION Defining ARP Settings The ARP Settings Setup Page allows network managers to this page. Specifies the amount of time (in the ARP table with the MAC address. ■ MAC Address - The default value is deleted from the table. The range is updated. The monitor users have...
... Address - The ARP Settings Setup Page opens: Figure 60 ARP Settings Setup Page The ARP Settings Setup Page contains the following fields: ■ VLAN - 112 CHAPTER 9: CONFIGURING IP AND MAC ADDRESS INFORMATION Defining ARP Settings The ARP Settings Setup Page allows network managers to this page. Specifies the amount of time (in the ARP table with the MAC address. ■ MAC Address - The default value is deleted from the table. The range is updated. The monitor users have...
User Guide
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... user has limited access to a monitoring port. 17 MANAGING DEVICE DIAGNOSTICS Configuring Port Mirroring This section contains information for viewing and configuring port and cable diagnostics, and includes the following topics: ■ Defining Port Mirroring ■ Removing Port Mirroring Network administrators can be used as a diagnostic tool as well as a debugging feature. This section contains the following topics: ■ Configuring Port Mirroring ■ Viewing Cable Diagnostics Port mirroring monitors and mirrors network traffic...
... user has limited access to a monitoring port. 17 MANAGING DEVICE DIAGNOSTICS Configuring Port Mirroring This section contains information for viewing and configuring port and cable diagnostics, and includes the following topics: ■ Defining Port Mirroring ■ Removing Port Mirroring Network administrators can be used as a diagnostic tool as well as a debugging feature. This section contains the following topics: ■ Configuring Port Mirroring ■ Viewing Cable Diagnostics Port mirroring monitors and mirrors network traffic...
User Guide
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... Switch 2924-SFP Plus (continued) Feature Address Resolution Protocol (ARP) Class Of Service (CoS) Command Line Interface Configuration File Management DHCP Clients Fast Link Full 802.1Q VLAN Tagging Compliance IGMP Snooping Link Aggregated Groups Description ARP converts between IP addresses and MAC (i.e., hardware) addresses. 186 APPENDIX B: DEVICE SPECIFICATIONS AND FEATURES Table 11 Features of CLI commands, which Multicast routers are sending Multicast frames. STP can be received from one hop to an upstream Multicast router. From the frame, the device identifies work...
... Switch 2924-SFP Plus (continued) Feature Address Resolution Protocol (ARP) Class Of Service (CoS) Command Line Interface Configuration File Management DHCP Clients Fast Link Full 802.1Q VLAN Tagging Compliance IGMP Snooping Link Aggregated Groups Description ARP converts between IP addresses and MAC (i.e., hardware) addresses. 186 APPENDIX B: DEVICE SPECIFICATIONS AND FEATURES Table 11 Features of CLI commands, which Multicast routers are sending Multicast frames. STP can be received from one hop to an upstream Multicast router. From the frame, the device identifies work...
User Guide
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...A RADIUS server maintains a user database, which target port receives copies of network topologies to enable faster convergence, without creating forwarding loops. Remote Monitoring (RMON) is a client/server-based protocol. Layer 2 Multicast service is where a single frame is addressed to a specific Multicast address, from where copies of the Baseline Switch 2916-SFP Plus and Switch 2924-SFP Plus (continued) Feature MAC Address Capacity Support MAC Multicast Support MDI/MDIX Support Password Management Port-based Authentication Port-based Virtual LANs Port Mirroring RADIUS Clients Rapid...
...A RADIUS server maintains a user database, which target port receives copies of network topologies to enable faster convergence, without creating forwarding loops. Remote Monitoring (RMON) is a client/server-based protocol. Layer 2 Multicast service is where a single frame is addressed to a specific Multicast address, from where copies of the Baseline Switch 2916-SFP Plus and Switch 2924-SFP Plus (continued) Feature MAC Address Capacity Support MAC Multicast Support MDI/MDIX Support Password Management Port-based Authentication Port-based Virtual LANs Port Mirroring RADIUS Clients Rapid...
User Guide
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...-level protocol that enables secure transactions of the Baseline Switch 2916-SFP Plus and Switch 2924-SFP Plus (continued) Feature SNMP Alarms and Trap Logs SNMP Versions 1 and 2 Spanning Tree Protocol SSL Static MAC Entries TCP TFTP Trivial File Transfer Protocol Virtual Cable Testing VLAN Support Web-based Management Description The system logs events with severity codes and timestamps. Simple Network Management Protocol (SNMP) over the UDP/IP protocol controls access to a Trap Recipient List. The device supports boot image, software and configuration upload/download via TFTP. The...
...-level protocol that enables secure transactions of the Baseline Switch 2916-SFP Plus and Switch 2924-SFP Plus (continued) Feature SNMP Alarms and Trap Logs SNMP Versions 1 and 2 Spanning Tree Protocol SSL Static MAC Entries TCP TFTP Trivial File Transfer Protocol Virtual Cable Testing VLAN Support Web-based Management Description The system logs events with severity codes and timestamps. Simple Network Management Protocol (SNMP) over the UDP/IP protocol controls access to a Trap Recipient List. The device supports boot image, software and configuration upload/download via TFTP. The...
User Guide
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... serial cable Replace the serial cable Replace serial cable for a pin-to the mains supply. Please try again at a later time. If that your management station is properly connected to the switch, and to -pin straight/flat cable Reconfigure the emulation software connection settings. Be sure the switch has a valid IP address, subnet mask and default gateway configured Check that the power cord is plugged into the appropriate VLAN to switch management using the web, the maximum number of connections may not be open...
... serial cable Replace the serial cable Replace serial cable for a pin-to the mains supply. Please try again at a later time. If that your management station is properly connected to the switch, and to -pin straight/flat cable Reconfigure the emulation software connection settings. Be sure the switch has a valid IP address, subnet mask and default gateway configured Check that the power cord is plugged into the appropriate VLAN to switch management using the web, the maximum number of connections may not be open...
User Guide
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... Password Check the port LED or zoom screen in a reboot loop Software fault No connection and the port Incorrect ethernet cable, LED is off e.g., crossed rather than straight cable, or vice versa, split pair (incorrect twisting of pairs) Solution Download and install a working or previous software version from the console Check pinout and replace if necessary Fiber optical cable connection is in the NMS application, and change setting if necessary Contact 3Com 194 APPENDIX D: TROUBLESHOOTING Table 12 Troubleshooting Solutions (continued) Problems...
... Password Check the port LED or zoom screen in a reboot loop Software fault No connection and the port Incorrect ethernet cable, LED is off e.g., crossed rather than straight cable, or vice versa, split pair (incorrect twisting of pairs) Solution Download and install a working or previous software version from the console Check pinout and replace if necessary Fiber optical cable connection is in the NMS application, and change setting if necessary Contact 3Com 194 APPENDIX D: TROUBLESHOOTING Table 12 Troubleshooting Solutions (continued) Problems...
User Guide
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...; Product model name, part number, and serial number ■ A list of access numbers later in this software, you buy an Express or Guardian contract, a Software Upgrades contract, or an equivalent support contract from 3Com or your 3Com product. To access these services for additional product and support information. See the table of system hardware and software, including revision level ■ Diagnostic error messages ■ Details about recent configuration changes, if applicable Access Software Downloads 213 Contact...
...; Product model name, part number, and serial number ■ A list of access numbers later in this software, you buy an Express or Guardian contract, a Software Upgrades contract, or an equivalent support contract from 3Com or your 3Com product. To access these services for additional product and support information. See the table of system hardware and software, including revision level ■ Diagnostic error messages ■ Details about recent configuration changes, if applicable Access Software Downloads 213 Contact...