User Guide
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... General System Information - The User Guide provides the following sections: Getting Started - Managing Device Security - Using the 3Com Web Interface - Provides information for configuring general system information including the user-defined system name, the user-defined system ... device configuration information. Provides information for the 3Com® Baseline Switch 2948-SFP Plus. Configuring Ports - Viewing Basic Settings - 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. The Web...
... General System Information - The User Guide provides the following sections: Getting Started - Managing Device Security - Using the 3Com Web Interface - Provides information for configuring general system information including the user-defined system name, the user-defined system ... device configuration information. Provides information for the 3Com® Baseline Switch 2948-SFP Plus. Configuring Ports - Viewing Basic Settings - 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. The Web...
User Guide
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...from the information in this guide, follow the instructions in the release notes. Intended Audience This guide is intended for the 3Com Baseline Switch 2948 includes: Safety and Support Information: Provides installation, set-up, and regulatory compliance information. Most user guides and release notes... are available in Adobe Acrobat Reader Portable Document Format (PDF) or HTML on the 3Com Web site: http://www.3Com.com Conventions Table 1 lists conventions that alerts you to potential Personal injury. Related Documentation In addition to an ...
...from the information in this guide, follow the instructions in the release notes. Intended Audience This guide is intended for the 3Com Baseline Switch 2948 includes: Safety and Support Information: Provides installation, set-up, and regulatory compliance information. Most user guides and release notes... are available in Adobe Acrobat Reader Portable Document Format (PDF) or HTML on the 3Com Web site: http://www.3Com.com Conventions Table 1 lists conventions that alerts you to potential Personal injury. Related Documentation In addition to an ...
User Guide
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... 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 1 GETTING STARTED This chapter contains introductory information about the 3Com® Baseline Switch 2948-SFP...
... 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 1 GETTING STARTED This chapter contains introductory information about the 3Com® Baseline Switch 2948-SFP...
User Guide
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... and Forward Duplex Modes Half and full duplex on all front panel ports Auto MDI/MDIX Supported on all ports. The Switch 2948 includes the following model: Baseline Switch 2948-SFP Plus 48-Port The Switch 2948 features the following advantages: Full Gigabit speed access ports Jumbo frames Port security Link aggregation control protocol (LACP) Up to 256...
... and Forward Duplex Modes Half and full duplex on all front panel ports Auto MDI/MDIX Supported on all ports. The Switch 2948 includes the following model: Baseline Switch 2948-SFP Plus 48-Port The Switch 2948 features the following advantages: Full Gigabit speed access ports Jumbo frames Port security Link aggregation control protocol (LACP) Up to 256...
User Guide
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B DEVICE SPECIFICATIONS AND FEATURES Related Standard The 3Com® Baseline Switch 2948-SFP Plus has been designed to +158 °F) 0-95% (non-condensing) EN 60068 (IEC 68) Physical Width Depth Height Weight Mounting 440 mm (17.3 in.) 265 ...
B DEVICE SPECIFICATIONS AND FEATURES Related Standard The 3Com® Baseline Switch 2948-SFP Plus has been designed to +158 °F) 0-95% (non-condensing) EN 60068 (IEC 68) Physical Width Depth Height Weight Mounting 440 mm (17.3 in.) 265 ...
User Guide
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... higher protocol layers. Auto-negotiation allows the ports to do the following features: Table 11 Features of the Baseline Switch 2948-SFP Plus Feature Description Auto-Negotiation The purpose of auto-negotiation is performed totally within the physical layers during link initiation...of operation. 188 appendix B: DEVICE SPECIFICATION AND FEATURES Electrical Line Frequency Input Voltage Current Rating Switch 2948-SFP Plus Maximum Power Consumption Switch 2948-SFP Plus Max Heat Dissipation Switch 2948-SFP Plus 50/60 Hz 100-240 Vac (auto range) 1.5 Amp (Max) 70 Watts 238.9...
... higher protocol layers. Auto-negotiation allows the ports to do the following features: Table 11 Features of the Baseline Switch 2948-SFP Plus Feature Description Auto-Negotiation The purpose of auto-negotiation is performed totally within the physical layers during link initiation...of operation. 188 appendix B: DEVICE SPECIFICATION AND FEATURES Electrical Line Frequency Input Voltage Current Rating Switch 2948-SFP Plus Maximum Power Consumption Switch 2948-SFP Plus Max Heat Dissipation Switch 2948-SFP Plus 50/60 Hz 100-240 Vac (auto range) 1.5 Amp (Max) 70 Watts 238.9...
User Guide
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... take up to 30-60 seconds to prevent buffer overflows. appendix b: DEVICE SPECIFICATION AND FEATURES 189 Table 11 Features of the Baseline Switch 2948-SFP Plus Feature Automatic MAC Addresses Aging Back Pressure Description MAC addresses from which are aged out. On half duplex links, the receiver... of CLI commands, which no traffic is received for a given period are stored and manipulated as the main interface for the switch. The Configuration file includes both system wide and port specific device configuration. During this time, STP detects possible loops, allowing time...
... take up to 30-60 seconds to prevent buffer overflows. appendix b: DEVICE SPECIFICATION AND FEATURES 189 Table 11 Features of the Baseline Switch 2948-SFP Plus Feature Automatic MAC Addresses Aging Back Pressure Description MAC addresses from which are aged out. On half duplex links, the receiver... of CLI commands, which no traffic is received for a given period are stored and manipulated as the main interface for the switch. The Configuration file includes both system wide and port specific device configuration. During this time, STP detects possible loops, allowing time...
User Guide
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... with Crossover (MDIX). Standard wiring for end stations is Media-Dependent Interface (MDI) and the standard wiring for hubs and switches is addressed to a specific Multicast address, from where copies of the frame are transmitted to the relevant ports. Link Aggregated ...single LAG. Ports are authenticated via an external server. 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 physical link ...
... with Crossover (MDIX). Standard wiring for end stations is Media-Dependent Interface (MDI) and the standard wiring for hubs and switches is addressed to a specific Multicast address, from where copies of the frame are transmitted to the relevant ports. Link Aggregated ...single LAG. Ports are authenticated via an external server. 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 physical link ...
User Guide
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...address learning from incoming frames. SNMP Alarms and Trap Logs The system logs events with severity codes and timestamps. Switches exchange configuration messages using specifically formatted frames and selectively enable and disable forwarding on their ingress port. It relies upon...outgoing packets from a monitored port to the system. appendix b: DEVICE SPECIFICATION AND FEATURES 191 Table 11 Features of the Baseline Switch 2948-SFP Plus Feature Port-based Virtual LANs Description Port-based VLANs classify incoming packets to VLANs based on ports. Static MAC ...
...address learning from incoming frames. SNMP Alarms and Trap Logs The system logs events with severity codes and timestamps. Switches exchange configuration messages using specifically formatted frames and selectively enable and disable forwarding on their ingress port. It relies upon...outgoing packets from a monitored port to the system. appendix b: DEVICE SPECIFICATION AND FEATURES 191 Table 11 Features of the Baseline Switch 2948-SFP Plus Feature Port-based Virtual LANs Description Port-based VLANs classify incoming packets to VLANs based on ports. Static MAC ...
User Guide
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...-based input into TCP packets, each carrying a sequence number. 192 appendix B: DEVICE SPECIFICATION AND FEATURES Table 11 Features of switching ports that comprise a single broadcast domain. Octets streams are collections of the Baseline Switch 2948-SFP Plus Feature TCP Description Transport Control Protocol (TCP). The system contains a Web Server, which serves HTML pages, through which...
...-based input into TCP packets, each carrying a sequence number. 192 appendix B: DEVICE SPECIFICATION AND FEATURES Table 11 Features of switching ports that comprise a single broadcast domain. Octets streams are collections of the Baseline Switch 2948-SFP Plus Feature TCP Description Transport Control Protocol (TCP). The system contains a Web Server, which serves HTML pages, through which...
User Guide
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...to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. VCCI STATEMENT Also available at http://www.3Com.com. These limits are on , the user is available from the U.S. INFORMATION TO THE USER If this equipment does cause ... may cause harmful interference to radio communications. Move the equipment away from the Product Support web page for the Baseline Switch 2948-SFP Plus at http://support.3com/doc/BL_WEITCH_2948_EU_DOC.pdf Cet appareil numérique de la Classe A est conforme à la norme NMB-003 du ...
...to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. VCCI STATEMENT Also available at http://www.3Com.com. These limits are on , the user is available from the U.S. INFORMATION TO THE USER If this equipment does cause ... may cause harmful interference to radio communications. Move the equipment away from the Product Support web page for the Baseline Switch 2948-SFP Plus at http://support.3com/doc/BL_WEITCH_2948_EU_DOC.pdf Cet appareil numérique de la Classe A est conforme à la norme NMB-003 du ...