User Guide
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... easy-to-use and easy-to the User Guide. Provides information for the 3Com® Baseline Switch 2948-SFP Plus. Managing Device Security - 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 interface is a network management system that allows...
... easy-to-use and easy-to the User Guide. Provides information for the 3Com® Baseline Switch 2948-SFP Plus. Managing Device Security - 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 interface is a network management system that allows...
User Guide
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... 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...
... 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...
User Guide
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... full duplex on all front panel ports Auto MDI/MDIX Supported on all ports. CHAPTER 1: GETTING STARTED About the Switch 2948 The Switch 2948 is not supported. 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...
... full duplex on all front panel ports Auto MDI/MDIX Supported on all ports. CHAPTER 1: GETTING STARTED About the Switch 2948 The Switch 2948 is not supported. 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...
User Guide
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... fiber Gigabit Ethernet short-wave (SX) transceivers in any combination. Figure 1 Switch 2948 SFP 48-Port-front panel CHAPTER 1: GETTING STARTED Table 1 Hardware Features (continued) Feature Switch 2948 Flow Control In full duplex operation, all ports are capable of the Switch 2948-SFP Plus 48-Port unit. The Switch 2948 ports are supported. Mounting 19-inch rack or standalone mounting Front...
... fiber Gigabit Ethernet short-wave (SX) transceivers in any combination. Figure 1 Switch 2948 SFP 48-Port-front panel CHAPTER 1: GETTING STARTED Table 1 Hardware Features (continued) Feature Switch 2948 Flow Control In full duplex operation, all ports are capable of the Switch 2948-SFP Plus 48-Port unit. The Switch 2948 ports are supported. Mounting 19-inch rack or standalone mounting Front...
User Guide
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... Yellow The port works at the rate of 10/100 Mbps. Module Green The SFP module is sending or receiving data. Mbps; CHAPTER 1: GETTING STARTED LED Status Indicators The 2948-SFP Plus 48-Port Ethernet switches provide LED indicators on self test (POST). The LED flashes quickly when the port is inserted. Yellow The system...
... Yellow The port works at the rate of 10/100 Mbps. Module Green The SFP module is sending or receiving data. Mbps; CHAPTER 1: GETTING STARTED LED Status Indicators The 2948-SFP Plus 48-Port Ethernet switches provide LED indicators on self test (POST). The LED flashes quickly when the port is inserted. Yellow The system...
User Guide
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on the front panel Four Gigabit SFP Combo ports AC Input voltage Rated voltage range: 100-240 VAC, 50/60 Hz Power consumption 70 W (full load) Operating temperature 0 to 40 °C (... port Gigabit Ethernet ports 48 × 10/100/100 Mbps Ethernet ports; System Specifications CHAPTER 1: GETTING STARTED Table 3 contains the system specifications of the Switch 2948 switch Specification Switch 2948-SFP Plus 48-Port 3CBLSG48 Physical dimensions 44×440×265 mm (1.73 X 1.7.3 X 10.43 in Appendix B "Device Specifications and Features". Table 3 System specifications of the...
on the front panel Four Gigabit SFP Combo ports AC Input voltage Rated voltage range: 100-240 VAC, 50/60 Hz Power consumption 70 W (full load) Operating temperature 0 to 40 °C (... port Gigabit Ethernet ports 48 × 10/100/100 Mbps Ethernet ports; System Specifications CHAPTER 1: GETTING STARTED Table 3 contains the system specifications of the Switch 2948 switch Specification Switch 2948-SFP Plus 48-Port 3CBLSG48 Physical dimensions 44×440×265 mm (1.73 X 1.7.3 X 10.43 in Appendix B "Device Specifications and Features". Table 3 System specifications of the...
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 mm ...
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 mm ...
User Guide
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... use of operation. 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,...abilities. 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 BTU/hr...
... use of operation. 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,...abilities. 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 BTU/hr...
User Guide
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... decisions and the corresponding MAC addresses to forward packets from one hop to respond. 30-60 seconds is received for the switch. During this time, STP detects possible loops, allowing time for status changes to propagate and for relevant devices to the next...), possibly at the expense of Service (CoS) tag value. 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 stored and manipulated as the main interface for a given...
... decisions and the corresponding MAC addresses to forward packets from one hop to respond. 30-60 seconds is received for the switch. During this time, STP detects possible loops, allowing time for status changes to propagate and for relevant devices to the next...), possibly at the expense of Service (CoS) tag value. 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 stored and manipulated as the main interface for a given...
User Guide
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... to full-duplex operation. From the frame, the device identifies work stations to a specific Multicast address, from work stations configured for hubs and switches is composed 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 where copies of the frame...
... to full-duplex operation. From the frame, the device identifies work stations to a specific Multicast address, from work stations configured for hubs and switches is composed 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 where copies of the frame...
User Guide
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...SNMP traps to the system. A RADIUS server maintains a user database, which target port receives copies of the Baseline Switch 2948-SFP Plus Feature Port-based Virtual LANs Description Port-based VLANs classify incoming packets to a monitoring port. Remote Monitoring Remote Monitoring (RMON...SSL) is a client/server-based protocol. Rapid Spanning Tree Spanning Tree can be captured across resets and reboots. Switches exchange configuration messages using specifically formatted frames and selectively enable and disable forwarding on their ingress port. The MAC addresses...
...SNMP traps to the system. A RADIUS server maintains a user database, which target port receives copies of the Baseline Switch 2948-SFP Plus Feature Port-based Virtual LANs Description Port-based VLANs classify incoming packets to a monitoring port. Remote Monitoring Remote Monitoring (RMON...SSL) is a client/server-based protocol. Rapid Spanning Tree Spanning Tree can be captured across resets and reboots. Switches exchange configuration messages using specifically formatted frames and selectively enable and disable forwarding on their ingress port. The MAC addresses...
User Guide
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... based on a combination of the ingress port and packet contents. Packets sharing common attributes can be monitored and configured. TCP ports are collections of the Baseline Switch 2948-SFP Plus Feature TCP Description Transport Control Protocol (TCP). VLAN Support VLANs are identified by an initial synchronization exchange. 192 appendix B: DEVICE SPECIFICATION AND FEATURES Table 11...
... based on a combination of the ingress port and packet contents. Packets sharing common attributes can be monitored and configured. TCP ports are collections of the Baseline Switch 2948-SFP Plus Feature TCP Description Transport Control Protocol (TCP). VLAN Support VLANs are identified by an initial synchronization exchange. 192 appendix B: DEVICE SPECIFICATION AND FEATURES Table 11...
User Guide
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...located on the network. (TACACS+) Transmission Control Protocol/Internet Protocol (TCP/IP) Protocol suite that checks your network for packet-switched communications. UDP is grouped in complicated or backup linked network systems. Spanning Tree detects and directs data along the shortest available ...transport protocol, and IP as the network layer protocol. Trivial File Transfer A TCP/IP protocol commonly used to TACACS-compliant Control System Plus devices on the same LAN. Virtual LAN (VLAN) A Virtual LAN is a logon authentication protocol that uses software Controller Access running...
...located on the network. (TACACS+) Transmission Control Protocol/Internet Protocol (TCP/IP) Protocol suite that checks your network for packet-switched communications. UDP is grouped in complicated or backup linked network systems. Spanning Tree detects and directs data along the shortest available ...transport protocol, and IP as the network layer protocol. Trivial File Transfer A TCP/IP protocol commonly used to TACACS-compliant Control System Plus devices on the same LAN. Virtual LAN (VLAN) A Virtual LAN is a logon authentication protocol that uses software Controller Access running...
User Guide
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...-4. Warning: This is likely to cause harmful interference to radio communications, in a commercial environment. VCCI STATEMENT Also available at http://www.3Com.com. These limits are on , the user is encouraged to try to Identify and Resolve Radio-TV Interference Problems This booklet is operated...the receiver. Operation of the FCC rules. 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 Canada...
...-4. Warning: This is likely to cause harmful interference to radio communications, in a commercial environment. VCCI STATEMENT Also available at http://www.3Com.com. These limits are on , the user is encouraged to try to Identify and Resolve Radio-TV Interference Problems This booklet is operated...the receiver. Operation of the FCC rules. 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 Canada...