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... 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. Managing Device Security - Provides information for the 3Com® Baseline Switch 2948-SFP Plus. The Web interface web pages are easy-to-use and easy-to-navigate. Configuring Ports...
... 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. Managing Device Security - Provides information for the 3Com® Baseline Switch 2948-SFP Plus. The Web interface web pages are easy-to-use and easy-to-navigate. Configuring Ports...
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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 Plus...
... 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 Plus...
User Guide
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... (ACLs) Port-based mirroring Summary of Hardware Features Table 1 summarizes the hardware features supported by the Switch 2948. 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...
... (ACLs) Port-based mirroring Summary of Hardware Features Table 1 summarizes the hardware features supported by the Switch 2948. 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...
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... standalone mounting Front Panel Detail Figure 1 shows the front panel of receiving, but not sending pause frames. 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. Figure 1 Switch 2948 SFP 48-Port-front panel The Switch 2948 ports are supported.
... standalone mounting Front Panel Detail Figure 1 shows the front panel of receiving, but not sending pause frames. 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. Figure 1 Switch 2948 SFP 48-Port-front panel The Switch 2948 ports are supported.
User Guide
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CHAPTER 1: GETTING STARTED LED Status Indicators The 2948-SFP Plus 48-Port Ethernet switches provide LED indicators on the LEDs of the LED. BASE-T Activity The LED flashes quickly when the port Ethemet port is sending... The system has entered the fail safe mode. Active OFF The SFP module is not inserted or is sending or receiving data. Table 2 Describes the meanings of the Switch 2948 LED Label Status Description Power Power Green The switch starts normally. The LED flashes quickly when the port is not ...
CHAPTER 1: GETTING STARTED LED Status Indicators The 2948-SFP Plus 48-Port Ethernet switches provide LED indicators on the LEDs of the LED. BASE-T Activity The LED flashes quickly when the port Ethemet port is sending... The system has entered the fail safe mode. Active OFF The SFP module is not inserted or is sending or receiving data. Table 2 Describes the meanings of the Switch 2948 LED Label Status Description Power Power Green The switch starts normally. The LED flashes quickly when the port is not ...
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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...Console port Gigabit Ethernet ports 48 × 10/100/100 Mbps Ethernet ports; Table 3 System specifications of the Switch 2948. 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 ...
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...Console port Gigabit Ethernet ports 48 × 10/100/100 Mbps Ethernet ports; Table 3 System specifications of the Switch 2948. 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 ...
User Guide
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... EN55022 Class A, CISPR 22 Class A, FCC Part 15 Subpart B Class A, ICES-003 Class A, VCCI Class A, EN61000-3-2, EN61000-3-3. 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...
... EN55022 Class A, CISPR 22 Class A, FCC Part 15 Subpart B Class A, ICES-003 Class A, VCCI Class A, EN61000-3-2, EN61000-3-3. 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...
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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...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/...
... 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...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/...
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...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. During this standard is not...Clients Dynamic Host Client Protocol. An important requirement included in the form of a collection of a response time for the switch. DHCP service is considered too long of CLI commands, which no traffic is used to forward packets from a network ...
...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. During this standard is not...Clients Dynamic Host Client Protocol. An important requirement included in the form of a collection of a response time for the switch. DHCP service is considered too long of CLI commands, which no traffic is used to forward packets from a network ...
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... from physical link disruption Higher bandwidth connections Improved bandwidth granularity High bandwidth server connectivity LAG is composed of the Baseline Switch 2948-SFP Plus Feature IGMP Snooping Description IGMP Snooping examines IGMP frame contents, when they are sending Multicast frames. Layer 2 ...LAG. Standard wiring for end stations is Media-Dependent Interface (MDI) and the standard wiring for hubs and switches is a limited broadcast service, which Multicast routers are forwarded by the device from where copies of the frame ...
... from physical link disruption Higher bandwidth connections Improved bandwidth granularity High bandwidth server connectivity LAG is composed of the Baseline Switch 2948-SFP Plus Feature IGMP Snooping Description IGMP Snooping examines IGMP frame contents, when they are sending Multicast frames. Layer 2 ...LAG. Standard wiring for end stations is Media-Dependent Interface (MDI) and the standard wiring for hubs and switches is a limited broadcast service, which Multicast routers are forwarded by the device from where copies of the frame ...
User Guide
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... Network Management Protocol (SNMP) over the UDP/IP protocol controls access to automatically prevent and resolve L2 forwarding loops. Switches exchange configuration messages using specifically formatted frames and selectively enable and disable forwarding on their ingress port. Events are stored ...logs events with severity codes and timestamps. 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 learning them from incoming frames. It ...
... Network Management Protocol (SNMP) over the UDP/IP protocol controls access to automatically prevent and resolve L2 forwarding loops. Switches exchange configuration messages using specifically formatted frames and selectively enable and disable forwarding on their ingress port. Events are stored ...logs events with severity codes and timestamps. 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 learning them from incoming frames. It ...
User Guide
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...shorts. Web-based Management With web-based management, the system can be monitored and configured. TCP connections are collections of switching ports that comprise a single broadcast domain. The system contains a Web Server, which serves HTML pages, through which ... 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). Octets streams are identified by an initial synchronization exchange. TCP ports are divided...
...shorts. Web-based Management With web-based management, the system can be monitored and configured. TCP connections are collections of switching ports that comprise a single broadcast domain. The system contains a Web Server, which serves HTML pages, through which ... 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). Octets streams are identified by an initial synchronization exchange. TCP ports are divided...
User Guide
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.... Protocol (UDP) It uses IP 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 packet-switched communications. A loop can often Protocol (STP) occur in the network. Protocol (TFTP) User Datagram UDP provides a datagram mode for software...
.... Protocol (UDP) It uses IP 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 packet-switched communications. A loop can often Protocol (STP) occur in the network. Protocol (TFTP) User Datagram UDP provides a datagram mode for software...
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If necessary, the user should consult the dealer or an experienced radio/television technician for the Baseline Switch 2948-SFP Plus at http://support.3com/doc/BL_WEITCH_2948_EU_DOC.pdf This Class A digital apparatus complies with the limits for a Class A digital device, pursuant to part...to comply with Canadian ICES-003. VCCI STATEMENT Also available at http://www.3Com.com. 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 ...
If necessary, the user should consult the dealer or an experienced radio/television technician for the Baseline Switch 2948-SFP Plus at http://support.3com/doc/BL_WEITCH_2948_EU_DOC.pdf This Class A digital apparatus complies with the limits for a Class A digital device, pursuant to part...to comply with Canadian ICES-003. VCCI STATEMENT Also available at http://www.3Com.com. 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 ...