User Guide
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... system contact person. Configuring Ports - The Web interface is a network management system that allows you to the User Guide. It covers summaries of hardware and software features. Provides information for configuring both system and network security, including traffic control, ACLs, and device access methods. ABOUT THIS GUIDE This guide provides information about the Switch 2948 and how they can be used in your switch from a remote web browser. Using the 3Com Web Interface - The Web interface web pages are easy-to...
... system contact person. Configuring Ports - The Web interface is a network management system that allows you to the User Guide. It covers summaries of hardware and software features. Provides information for configuring both system and network security, including traffic control, ACLs, and device access methods. ABOUT THIS GUIDE This guide provides information about the Switch 2948 and how they can be used in your switch from a remote web browser. Using the 3Com Web Interface - The Web interface web pages are easy-to...
User Guide
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... the Switch 2948 2 Front Panel Detail 3 LED Status Indicators 4 System Specifications 5 Installing the Switch 6 Setting Up for Management 7 Methods of Managing a Switch 8 Switch Setup Overview 10 Using the Command Line Interface (CLI 14 Setting Up Web Interface Management 18 Setting Up SNMP Management V1 or V2 19 Default Users and Passwords 20 Upgrading Software using theCLI 20 2 USING THE 3COM WEB INTERFACE Starting the 3Com Web Interface 21 Understanding the 3Com Web Interface 23 Saving the Configuration 31 Resetting the Device 32 Restoring Factory Defaults 34 Logging Off...
... the Switch 2948 2 Front Panel Detail 3 LED Status Indicators 4 System Specifications 5 Installing the Switch 6 Setting Up for Management 7 Methods of Managing a Switch 8 Switch Setup Overview 10 Using the Command Line Interface (CLI 14 Setting Up Web Interface Management 18 Setting Up SNMP Management V1 or V2 19 Default Users and Passwords 20 Upgrading Software using theCLI 20 2 USING THE 3COM WEB INTERFACE Starting the 3Com Web Interface 21 Understanding the 3Com Web Interface 23 Saving the Configuration 31 Resetting the Device 32 Restoring Factory Defaults 34 Logging Off...
User Guide
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...GETTING STARTED This chapter contains introductory information about the 3Com® Baseline Switch 2948-SFP Plus and how they can be used in your network. It covers summaries of the hardware and software features, and the following topics: About the Switch 2948 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
...GETTING STARTED This chapter contains introductory information about the 3Com® Baseline Switch 2948-SFP Plus and how they can be used in your network. It covers summaries of the hardware and software features, and the following topics: About the Switch 2948 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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... Gigabit speed access ports Jumbo frames Port security Link aggregation control protocol (LACP) Up to 8,000 supported Auto-negotiation Supported on all ports Forwarding Modes Store and Forward Duplex Modes Half and full duplex on all front panel ports Auto MDI/MDIX Supported on all ports. If fiber SFP transceivers are used, Auto MDIX is a Gigabit Ethernet switching product that delivers flexible three-speed performance (10/100/1000) and advanced voiceoptimized features such as auto-QoS and auto-voice VLAN. Table 1 Hardware Features Feature Switch 2948 Addresses Up...
... Gigabit speed access ports Jumbo frames Port security Link aggregation control protocol (LACP) Up to 8,000 supported Auto-negotiation Supported on all ports Forwarding Modes Store and Forward Duplex Modes Half and full duplex on all front panel ports Auto MDI/MDIX Supported on all ports. If fiber SFP transceivers are used, Auto MDIX is a Gigabit Ethernet switching product that delivers flexible three-speed performance (10/100/1000) and advanced voiceoptimized features such as auto-QoS and auto-voice VLAN. Table 1 Hardware Features Feature Switch 2948 Addresses Up...
User Guide
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... change and monitor the way it works, you to access the management software that resides on the switch. Setting Up for Management CHAPTER 1: GETTING STARTED To make full use of the features offered by your network. This section explains the initial set the IP Address using the Console Port Viewing IP Information using the Console Port Setting Up Web Interface Management Setting Up SNMP Management V1 or V2 Default Users and Passwords It covers the following topics: Methods of Managing a Switch Switch Setup Overview Manually set...
... change and monitor the way it works, you to access the management software that resides on the switch. Setting Up for Management CHAPTER 1: GETTING STARTED To make full use of the features offered by your network. This section explains the initial set the IP Address using the Console Port Viewing IP Information using the Console Port Setting Up Web Interface Management Setting Up SNMP Management V1 or V2 Default Users and Passwords It covers the following topics: Methods of Managing a Switch Switch Setup Overview Manually set...
User Guide
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...: Web Interface Management SNMP Management In addition, you can use the Command Line Interface through the Console port for basic operations of web pages that allow you to Management manage the switch using a Web browser remotely over the Network Switch Refer to "3Com CLI Reference Guide" on page 18. Figure 2 Web Interface Management over an IP network (see Figure 2). Web Interface Each switch has an internal set of the switch including setting and viewing the IP address, configuring user accounts, upgrading switch firmware, and more. Refer to "Setting Up Web...
...: Web Interface Management SNMP Management In addition, you can use the Command Line Interface through the Console port for basic operations of web pages that allow you to Management manage the switch using a Web browser remotely over the Network Switch Refer to "3Com CLI Reference Guide" on page 18. Figure 2 Web Interface Management over an IP network (see Figure 2). Web Interface Each switch has an internal set of the switch including setting and viewing the IP address, configuring user accounts, upgrading switch firmware, and more. Refer to "Setting Up Web...
User Guide
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... default gateway 1 Connect to the switch Console port as described in "Connecting to the Console Port" page 14. 2 The command line interface login sequence begins as soon as the switch detects a connection to manually set up your user name and press Return. The Password prompt displays. 4 Press Return. See "Methods of the switch.) 6 Enter the logout command to have logged on page 8. 16 CHAPTER 1: GETTING STARTED Manually set the IP Address using the command line interface. You need to terminate...
... default gateway 1 Connect to the switch Console port as described in "Connecting to the Console Port" page 14. 2 The command line interface login sequence begins as soon as the switch detects a connection to manually set up your user name and press Return. The Password prompt displays. 4 Press Return. See "Methods of the switch.) 6 Enter the logout command to have logged on page 8. 16 CHAPTER 1: GETTING STARTED Manually set the IP Address using the command line interface. You need to terminate...
User Guide
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...: 255.255.0.0 Default gateway: 0.0.0.0 Runtime version: 00.00.29 Bootcode version: 00.00.12 Select menu option: The initial set up . 1 Connect to the switch Console port as your chosen management method. If you do not intend to use the command line interface using the command line interface. The following is an example of Managing a Switch" on correctly, Select menu option: is displayed. 5 Enter Summary to view a summary of your switch is now...
...: 255.255.0.0 Default gateway: 0.0.0.0 Runtime version: 00.00.29 Bootcode version: 00.00.12 Select menu option: The initial set up . 1 Connect to the switch Console port as your chosen management method. If you do not intend to use the command line interface using the command line interface. The following is an example of Managing a Switch" on correctly, Select menu option: is displayed. 5 Enter Summary to view a summary of your switch is now...
User Guide
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... pair Ethernet cable with RJ-45 connectors. The switch's Web interface supports both secure (HTTPS) and non-secure (HTTP) connections. These features are enabled on page 8. Ensure that you can set up the web interface management over the network. 18 CHAPTER 1: GETTING STARTED Setting Up Web Interface Management This section describes how you have changed your browser. A suitable Web browser. Choosing a Browser To display the web interface correctly, use one of Managing a Switch" on...
... pair Ethernet cable with RJ-45 connectors. The switch's Web interface supports both secure (HTTPS) and non-secure (HTTP) connections. These features are enabled on page 8. Ensure that you can set up the web interface management over the network. 18 CHAPTER 1: GETTING STARTED Setting Up Web Interface Management This section describes how you have changed your browser. A suitable Web browser. Choosing a Browser To display the web interface correctly, use one of Managing a Switch" on...
User Guide
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... Access Interface. Monitor access level - There is user name: admin with no Password. The factory default is always one management level user configured for the switch. Provides the user with read -only system access. Access levels provide read or read/write permissions to 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 Multi-Session web feature is enabled on the 3Com Web Interface: Management access...
... Access Interface. Monitor access level - There is user name: admin with no Password. The factory default is always one management level user configured for the switch. Provides the user with read -only system access. Access levels provide read or read/write permissions to 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 Multi-Session web feature is enabled on the 3Com Web Interface: Management access...
User Guide
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... CHAPTER 13: CONFIGURING QUALITY OF SERVICE 151 The CoS Setup Page contains information for CoS values. 2 Define the fields. 3 Click Apply. The default CoS value is the highest priority. With the default settings, 0 is the lowest and 7 is 0. Enables QoS on the device: Disabled - Select Port(s) - Sets the default user priority. Monitor users have no access to be configured. Restore Default - Set Default - The CoS Setup Page opens. Determines the QoS mode on the...
... CHAPTER 13: CONFIGURING QUALITY OF SERVICE 151 The CoS Setup Page contains information for CoS values. 2 Define the fields. 3 Click Apply. The default CoS value is the highest priority. With the default settings, 0 is the lowest and 7 is 0. Enables QoS on the device: Disabled - Select Port(s) - Sets the default user priority. Monitor users have no access to be configured. Restore Default - Set Default - The CoS Setup Page opens. Determines the QoS mode on the...
User Guide
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... link initiation, without any additional overhead to do the following features: Table 11 Features of the Baseline Switch 2948-SFP Plus Feature Description Auto-Negotiation The purpose of operational modes that are not shared by both devices Configure each port for the highest-level operational mode that both ports can support 188 appendix B: DEVICE SPECIFICATION AND FEATURES Electrical Line Frequency Input Voltage Current Rating Switch 2948-SFP Plus Maximum Power Consumption Switch 2948-SFP...
... link initiation, without any additional overhead to do the following features: Table 11 Features of the Baseline Switch 2948-SFP Plus Feature Description Auto-Negotiation The purpose of operational modes that are not shared by both devices Configure each port for the highest-level operational mode that both ports can support 188 appendix B: DEVICE SPECIFICATION AND FEATURES Electrical Line Frequency Input Voltage Current Rating Switch 2948-SFP Plus Maximum Power Consumption Switch 2948-SFP...
User Guide
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... a network server upon system startup. An important requirement included in a configuration file. The CLI is considered too long of these services. Fast Link STP can be configured, including IP address management and firmware upgrading. appendix b: DEVICE SPECIFICATION AND FEATURES 189 Table 11 Features of other traffic. This is stored in this time, STP detects possible loops, allowing time for status changes to propagate and for routing decisions and the corresponding MAC addresses to be used in...
... a network server upon system startup. An important requirement included in a configuration file. The CLI is considered too long of these services. Fast Link STP can be configured, including IP address management and firmware upgrading. appendix b: DEVICE SPECIFICATION AND FEATURES 189 Table 11 Features of other traffic. This is stored in this time, STP detects possible loops, allowing time for status changes to propagate and for routing decisions and the corresponding MAC addresses to be used in...
User Guide
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...). Link Aggregated Groups Link Aggregated Group (LAG). The device reserves specific MAC addresses for Multicast sessions, and which allows one-to-many and many connections for information distribution. Only authenticated and approved system users can transmit and receive data. 190 appendix B: DEVICE SPECIFICATION AND FEATURES Table 11 Features of the Baseline Switch 2948-SFP Plus Feature IGMP Snooping Description IGMP Snooping examines IGMP frame contents, when they are forwarded by the device from work stations configured for...
...). Link Aggregated Groups Link Aggregated Group (LAG). The device reserves specific MAC addresses for Multicast sessions, and which allows one-to-many and many connections for information distribution. Only authenticated and approved system users can transmit and receive data. 190 appendix B: DEVICE SPECIFICATION AND FEATURES Table 11 Features of the Baseline Switch 2948-SFP Plus Feature IGMP Snooping Description IGMP Snooping examines IGMP frame contents, when they are forwarded by the device from work stations configured for...
User Guide
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... traffic passing through privacy, authentication, and data integrity. Rapid Spanning Tree (RSTP) detects uses of network topologies to learning them from incoming frames. The MAC addresses are preserved across the entire network. SNMP Versions 1 and 2 Simple Network Management Protocol (SNMP) over the UDP/IP protocol controls access to VLANs based on ports. It relies upon certificates and public and private keys. appendix b: DEVICE SPECIFICATION AND FEATURES 191 Table 11 Features of the Baseline Switch 2948-SFP...
... traffic passing through privacy, authentication, and data integrity. Rapid Spanning Tree (RSTP) detects uses of network topologies to learning them from incoming frames. The MAC addresses are preserved across the entire network. SNMP Versions 1 and 2 Simple Network Management Protocol (SNMP) over the UDP/IP protocol controls access to VLANs based on ports. It relies upon certificates and public and private keys. appendix b: DEVICE SPECIFICATION AND FEATURES 191 Table 11 Features of the Baseline Switch 2948-SFP...
User Guide
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... a combination of switching ports that comprise a single broadcast domain. Web-based Management With web-based management, the system can be grouped in the same VLAN. Packets are divided into configuration commands, MIB variable settings, and other management-related settings. TCP connections are identified by an initial synchronization exchange. 192 appendix B: DEVICE SPECIFICATION AND FEATURES Table 11 Features of the Baseline Switch 2948-SFP Plus Feature TCP Description Transport Control Protocol (TCP).
... a combination of switching ports that comprise a single broadcast domain. Web-based Management With web-based management, the system can be grouped in the same VLAN. Packets are divided into configuration commands, MIB variable settings, and other management-related settings. TCP connections are identified by an initial synchronization exchange. 192 appendix B: DEVICE SPECIFICATION AND FEATURES Table 11 Features of the Baseline Switch 2948-SFP Plus Feature TCP Description Transport Control Protocol (TCP).
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... for using HTTP, SNMP, etc. power LED is applied. Problem management includes isolating problems, quantifying the problems, and then applying the solution. With the problem known, the effect of the problem must be determined. Self-test exceeds 15 seconds No connection is established and the port LED is on Device is off . Once the problem is quantified, the solution is off Lost Password. Cannot connect to management using Console connection Cannot connect...
... for using HTTP, SNMP, etc. power LED is applied. Problem management includes isolating problems, quantifying the problems, and then applying the solution. With the problem known, the effect of the problem must be determined. Self-test exceeds 15 seconds No connection is established and the port LED is on Device is off . Once the problem is quantified, the solution is off Lost Password. Cannot connect to management using Console connection Cannot connect...
User Guide
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... SNMP, etc Be sure the switch has a valid IP address, subnet mask, and, the default gateway is set Configure the network address in the workstation. Check that the port has not been disabled. Reconfigure the emulation software connection settings. No connection is LED established and the port is properly connected with IP protocol. appendix d: troubleshooting 197 Table 12 Troubleshooting Solutions Problems Possible Cause Switch does not run; Power is disconnected. No response from the Faulty serial cable terminal...
... SNMP, etc Be sure the switch has a valid IP address, subnet mask, and, the default gateway is set Configure the network address in the workstation. Check that the port has not been disabled. Reconfigure the emulation software connection settings. No connection is LED established and the port is properly connected with IP protocol. appendix d: troubleshooting 197 Table 12 Troubleshooting Solutions Problems Possible Cause Switch does not run; Power is disconnected. No response from the Faulty serial cable terminal...
User Guide
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.... E 3COM CLI REFERENCE GUIDE This section describes using the CLI via a console port: 1 Connect the RJ-45 cable to the Console port of the switch to the serial port of the terminal or computer running the terminal emulation application. 2 Set the baud rate to 38400. 3 Set the data format to 8 data bits, 1 stop bit, and no parity. 4 Set Flow Control to Line Interface entering commands on to configure the device. Ensure that the setting is required. No password is for first time configuration...
.... E 3COM CLI REFERENCE GUIDE This section describes using the CLI via a console port: 1 Connect the RJ-45 cable to the Console port of the switch to the serial port of the terminal or computer running the terminal emulation application. 2 Set the baud rate to 38400. 3 Set the data format to 8 data bits, 1 stop bit, and no parity. 4 Set Flow Control to Line Interface entering commands on to configure the device. Ensure that the setting is required. No password is for first time configuration...
User Guide
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... bit. Data is supported by checking each packet for certain IP or MAC (i.e., Layer 2) information. BOOTP is the maximum number of bits that contains the devices system files, and the name of lower-level queues. Committed Burst Size CbS is used to locate the MAC address corresponding to enforce priority service and prevent blockage of the boot file. This allows the switch to use IP addresses for network devices...
... bit. Data is supported by checking each packet for certain IP or MAC (i.e., Layer 2) information. BOOTP is the maximum number of bits that contains the devices system files, and the name of lower-level queues. Committed Burst Size CbS is used to locate the MAC address corresponding to enforce priority service and prevent blockage of the boot file. This allows the switch to use IP addresses for network devices...