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...system and network security, including traffic control, ACLs, and device access methods. Using the 3Com Web Interface - Managing Device Security - Provides information for the 3Com® Baseline Switch 2948-SFP Plus. The Web interface is a network management system that allows you to configure, monitor, ...Guide provides the following sections: Getting Started - 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. Provides information for setting up and maintaining device settings. Viewing Basic ...
...system and network security, including traffic control, ACLs, and device access methods. Using the 3Com Web Interface - Managing Device Security - Provides information for the 3Com® Baseline Switch 2948-SFP Plus. The Web interface is a network management system that allows you to configure, monitor, ...Guide provides the following sections: Getting Started - 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. Provides information for setting up and maintaining device settings. Viewing Basic ...
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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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 8,000 supported...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 to 256 VLANs Access ...
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 8,000 supported...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 to 256 VLANs Access ...
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... Detail Figure 1 shows the front panel of receiving, but not sending pause frames. The Switch 2948 ports are supported. Figure 1 Switch 2948 SFP 48-Port-front panel Traffic Prioritization Supported (using the IEEE Std 802.ID, 1998 Edition...SFP Ethernet Ports Supports fiber Gigabit Ethernet long-wave (LX), and fiber Gigabit Ethernet short-wave (SX) transceivers in any combination. 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...
... Detail Figure 1 shows the front panel of receiving, but not sending pause frames. The Switch 2948 ports are supported. Figure 1 Switch 2948 SFP 48-Port-front panel Traffic Prioritization Supported (using the IEEE Std 802.ID, 1998 Edition...SFP Ethernet Ports Supports fiber Gigabit Ethernet long-wave (LX), and fiber Gigabit Ethernet short-wave (SX) transceivers in any combination. 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...
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.... The LED flashes quickly when the port is not recognized. CHAPTER 1: GETTING STARTED LED Status Indicators The 2948-SFP Plus 48-Port Ethernet switches provide LED indicators on the front panel for your convenience to monitor the switch. Mbps; Yellow The system has entered the fail safe mode. The LED flashes when the system has...
.... The LED flashes quickly when the port is not recognized. CHAPTER 1: GETTING STARTED LED Status Indicators The 2948-SFP Plus 48-Port Ethernet switches provide LED indicators on the front panel for your convenience to monitor the switch. Mbps; Yellow The system has entered the fail safe mode. The LED flashes when the system has...
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... 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 Switch 2948. on the front panel Four Gigabit SFP Combo ports AC Input voltage Rated voltage range: 100-240...
... 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 Switch 2948. on the front panel Four Gigabit SFP Combo ports AC Input voltage Rated voltage range: 100-240...
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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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... can support 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... 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 Switch Features This section describes the device features. The...
... can support 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... 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 Switch Features This section describes the device features. The...
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...corresponding MAC addresses to prevent buffer overflows. On half duplex links, the receiver may employ back pressure (i.e. This allows the switch to use IP addresses for virtual bridged LANs, the Tagging Compliance services provided in VLANs, and the protocols and algorithms ... includes both system wide and port specific device configuration. 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. The Fast Link option bypasses this...
...corresponding MAC addresses to prevent buffer overflows. On half duplex links, the receiver may employ back pressure (i.e. This allows the switch to use IP addresses for virtual bridged LANs, the Tagging Compliance services provided in VLANs, and the protocols and algorithms ... includes both system wide and port specific device configuration. 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. The Fast Link option bypasses this...
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... copies of the frame are transmitted to full-duplex operation. The device reserves specific MAC addresses for hubs and switches is addressed to a specific Multicast address, from physical link disruption Higher bandwidth connections Improved bandwidth granularity High bandwidth ... same speed, set to the relevant ports. 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 authenticated via an external server. Link ...
... copies of the frame are transmitted to full-duplex operation. The device reserves specific MAC addresses for hubs and switches is addressed to a specific Multicast address, from physical link disruption Higher bandwidth connections Improved bandwidth granularity High bandwidth ... same speed, set to the relevant ports. 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 authenticated via an external server. Link ...
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...database, which contains per-user authentication information, such as opposed to enable faster convergence, without creating forwarding loops. Switches exchange configuration messages using specifically formatted frames and selectively enable and disable forwarding on their ingress port. Users specify ...packets from incoming packets. Port Mirroring Port mirroring monitors and mirrors network traffic by forwarding copies of the Baseline Switch 2948-SFP Plus Feature Port-based Virtual LANs Description Port-based VLANs classify incoming packets to learning them from incoming frames...
...database, which contains per-user authentication information, such as opposed to enable faster convergence, without creating forwarding loops. Switches exchange configuration messages using specifically formatted frames and selectively enable and disable forwarding on their ingress port. Users specify ...packets from incoming packets. Port Mirroring Port mirroring monitors and mirrors network traffic by forwarding copies of the Baseline Switch 2948-SFP Plus Feature Port-based Virtual LANs Description Port-based VLANs classify incoming packets to learning them from incoming frames...
User Guide
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... VCT detects and reports copper link cabling occurrences, such as belonging to a VLAN based on either the VLAN tag or based on a combination of the Baseline Switch 2948-SFP Plus Feature TCP Description Transport Control Protocol (TCP). TFTP Trivial File Transfer Protocol The device supports boot image, software and configuration upload/download via TFTP. Packets...
... VCT detects and reports copper link cabling occurrences, such as belonging to a VLAN based on either the VLAN tag or based on a combination of the Baseline Switch 2948-SFP Plus Feature TCP Description Transport Control Protocol (TCP). TFTP Trivial File Transfer Protocol The device supports boot image, software and configuration upload/download via TFTP. Packets...
User Guide
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...loops. UDP packets are delivered just like services. A VLAN serves as a logical workgroup with no physical barriers, and allows users to TACACS-compliant Control System Plus devices on the same LAN. XModem A protocol used for software downloads. Protocol (UDP) It uses IP as the network layer protocol. Virtual LAN (VLAN... 215 Spanning Tree A technology that may be too complex, too slow, or just unnecessary. connection-less datagrams that checks your network for packet-switched communications. Trivial File Transfer A TCP/IP protocol commonly used to IP-like IP packets -
...loops. UDP packets are delivered just like services. A VLAN serves as a logical workgroup with no physical barriers, and allows users to TACACS-compliant Control System Plus devices on the same LAN. XModem A protocol used for software downloads. Protocol (UDP) It uses IP as the network layer protocol. Virtual LAN (VLAN... 215 Spanning Tree A technology that may be too complex, too slow, or just unnecessary. connection-less datagrams that checks your network for packet-switched communications. Trivial File Transfer A TCP/IP protocol commonly used to IP-like IP packets -
User Guide
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Move the equipment away from the Product Support web page for the Baseline Switch 2948-SFP Plus at http://www.3Com.com. Government Printing Office, Washington, DC 20402, Stock No. 004-000-00345-4. Warning: This is encouraged to try to radio communications. VCCI...This booklet is available from the U.S. Cet appareil numérique de la Classe A est conforme à la norme NMB-003 du Canada. 3Com Europe Limited Peoplebuilding 2, Peoplebuilding Estate Maylands Avenue Hemel Hempstead, Hertfordshire HP2 4NW United Kingdom This product complies with IEEE 802.3. This Class A digital ...
Move the equipment away from the Product Support web page for the Baseline Switch 2948-SFP Plus at http://www.3Com.com. Government Printing Office, Washington, DC 20402, Stock No. 004-000-00345-4. Warning: This is encouraged to try to radio communications. VCCI...This booklet is available from the U.S. Cet appareil numérique de la Classe A est conforme à la norme NMB-003 du Canada. 3Com Europe Limited Peoplebuilding 2, Peoplebuilding Estate Maylands Avenue Hemel Hempstead, Hertfordshire HP2 4NW United Kingdom This product complies with IEEE 802.3. This Class A digital ...