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	Ethernet - Wikipedia, the free encyclopedia
		Ethernet is based on the idea of peers on the network sending messages in what was essentially a radio system, captive inside a common wire or channel, sometimes referred to as the ether.
		Despite this, switched Ethernet should still be regarded as an insecure network technology, because it is easy to subvert switched Ethernet systems by means such as ARP spoofing and MAC flooding, as well as for network administrators to use monitoring functions to copy traffic from the network.
		This length field was soon re-used in DEC/Intel/Xerox's Ethernet II as a label field, with the convention that values equal to or lower than 1500 indicated the use of the original Ethernet format, while higher values indicated what became known as an EtherType, and the use of the new frame format.
	en.wikipedia.org /wiki/Ethernet (4407 words)

	Network switch - Wikipedia, the free encyclopedia
		A switch can connect Ethernet, Token Ring, Fibre Channel or other types of packet switched network segments together to form a heterogeneous network operating at OSI Layer 2.
		If the destination MAC address is unknown, a broadcast address, or a multicast address, the switch simply transmits the frame out of all of the connected interfaces except the incoming port.
		Switches, unlike hubs, use microsegmentation to create collision domains, one per connected segment.
	en.wikipedia.org /wiki/Ethernet_switch (503 words)

	Ethernet Overview (Site not responding. Last check: 2007-10-18)
		An Ethernet network is typically wired in a star configuration and the hub is at the center.
		An Ethernet network based around switches can be wired in a star configuration with the switch at the center, or in a ring configuration using many switches.
		Ethernet requires that a specified maximum network diameter not be exceeded in an installation to ensure that collisions are reliably detected and resolved.
	www.peakaudio.com /CobraNet/Ethernet_overview.htm (1594 words)

	Network switch -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-18)
		A network switch is a (Click link for more info and facts about computer networking device) computer networking device that connects (Click link for more info and facts about network segment) network segments.
		As a (One of a series of still transparent photographs on a strip of film used in making movies) frame comes into a switch, the switch saves the originating (Click link for more info and facts about MAC address) MAC address and the originating port in the switch's MAC address table.
		Switches, unlike hubs, use (Click link for more info and facts about microsegmentation) microsegmentation to divide (Click link for more info and facts about collision domain) collision domains, one per connected segment.
	www.absoluteastronomy.com /encyclopedia/n/ne/network_switch.htm (717 words)

	Ethernet Switches
		An Ethernet Switch is a LAN interconnection device which operates at the data link layer (layer 2) of the OSI reference model.
		A switch is fundamentally similar to a bridge, but usually supports a larger number of connected LAN segments and has a richer management capability.
		At the centre of a Switch is a type of switching element which controls the ports to which each frame is forwarded.
	www.erg.abdn.ac.uk /users/gorry/eg3561/lan-pages/switch.html (810 words)

	What is the Difference Between a Hub and a Switch?
		Although hubs and switches both glue the PCs in a network together, a switch is more expensive and a network built with switches is generally considered faster than one built with hubs.
		An Ethernet switch automatically divides the network into multiple segments, acts as a high-speed, selective bridge between the segments, and supports simultaneous connections of multiple pairs of computers which don't compete with other pairs of computers for network bandwidth.
		When the switch receives a packet, it reads the destination address from the header information in the packet, establishes a temporary connection between the source and destination ports, sends the packet on its way, and then terminates the connection.
	www.duxcw.com /faq/network/hubsw.htm (592 words)

	ethernet switch (Site not responding. Last check: 2007-10-18)
		Ethernet Switches vs. Hubs From Louan Handke on Sat, 01 May 1999 What is the difference between switch hub and unswitched hubs
		...capacity Ethernet switch (40 to 1,000 Mbps.) An Ethernet switch is a device with multiple Ethernet connections, or ports.
		This is the fourth round of funding for Force10 Networks, a maker of the 10gbps Ethernet switch, as...
	1-for-stuff.com /13/ethernet-switch.html (215 words)

	Sizing up the Gigabit Ethernet switch players
		Latency for this switch at 512 and 1,518 bytes was 13.1 and 29.3 msec, respectively.
		All tested switches immediately dropped (and logged) the bad frames at the ingress port and did not hiccup in their handling of other packets.
		All switches were rack- and table-mountable, and the differentiation between physical switch installations was minimal.
	www.networkworld.com /reviews/2000/0731rev.html (2891 words)

	Ethernet Switch Versitron
		This switch, with its 2 gigabit uplinks, can also remotely enable or disable any of the 24 ports from the control station.
		This switch also supports auto-negotiation or manual setting for speed and duplex operation for each 10/100 switched port as well as port trunking and load sharing.
		This switch has full diagnostic LED indicators to indicate the power and port status and is also 19" rack-mountable.
	www.versitron.com /ethernet-switch.htm (525 words)

	Gigabit Ethernet Solutions - Speed, Performance, and Flexibility for Enterprise Networking
		The 3Com SuperStack® 3 Switch 4900 family of wire-speed Gigabit Ethernet switches is ideal for the core and the server farm of enterprise networks or as wiring closet switch aggregators offering a choice of copper or fiber connectivity.
		The SuperStack 3 Switch 4924 is a high performance, fixed configuration multilayer Gigabit Ethernet switch, providing 24 switched 10/100/1000 ports for the server farm and the wiring closet of enterprise networks.
		The SuperStack 3 Switch 4950 is a high performance, fixed configuration multilayer Gigabit Ethernet switch providing 24 ports in a combination of 10/100/1000, 1000BASE-SX, and GBIC ports.
	www.3com.com /en_US/jump_page/gigabit_leadership.html (545 words)

	MSI SW8G 8-Port Gigabit Ethernet Switch Review - PCStats.com
		The switch can be mounted in a standard 19" server or telco rack with its included hardware, or rubber feet stuck on the bottom and just left on a desktop.
		Also, each device connected to the switch is allowed to communicate at its normal speed, since the circuit formed between two communicating devices on separate ports of the switch goes only as fast as the slowest device.
		Switches are also known for their ability to negotiate packets of data so there are no collisions.
	www.pcstats.com /articleview.cfm?articleid=1713 (788 words)

	Ethernet Switch from DSL-Warehouse
		Ethernet switches provide the connection from your networked device (PC, router, firewall, etc) to the network 'backbone'.
		Switches are available in combinations of 10/100Mbps and gigabit (1000Mbps) speeds, and with copper (RJ45) or fibre ports.
		Desktop switches give you basic network connectivity between workgroup Ethernet devices and typically have no configuration requirement or management options.
	www.dsl-warehouse.com.au /products.asp?pm=2638 (218 words)

	Ethernet Switch ::: Managed Ethernet Switch from DSL-Warehouse
		Managed Ethernet switches can also be accessed from SNMP and RMON management stations/probes to give you real time network performance statistics to allow you to identify problems early on.
		Managed Ethernet switches allow you to configure switch options using a web- and/or console-based management interface.
		NETGEAR's non-blocking FSM726 is a Layer 2 managed switch that's intuitive enough for new users but powerful enough for experienced professionals.
	www.dsl-warehouse.com.au /products.asp?pm=2651 (200 words)

	Ethernet
		Ethernet was developed by the Xerox Corporation's Palo Alto Research Centre (known colloquially as Xerox PARC) in 1972 and was probably the first true LAN to be introduced.
		Ethernet uses a simple Carrier-Sense Multiple Access protocol with Collision Detection (CSMA/CD) to prevent two computers trying to transmit at the same time (or more correctly to ensure both computers retransmit any frames which are corrupted by simultaneous transmission).
		Ethernet LANs may be implemented using a variety of media (not just the coaxial cable described above).
	www.erg.abdn.ac.uk /users/gorry/course/lan-pages/enet.html (900 words)

	Nortel: Small/Medium Business - Business Solutions - Data Solutions for SMBs (Site not responding. Last check: 2007-10-18)
		Ethernet Switch 425 (formerly known as BayStack 425) - A high-density, low-cost desktop switching solution.
		Ethernet Switch 460 - A Power over Ethernet (PoE) switch that provides power to support IP phones, wireless access points, network cameras and more.
		Ethernet Switch 470 (formerly known as BayStack 470) - High-density, stackable Layer 2 Ethernet switches for the wiring closet.
	www.nortel.com /solutions/smb/business_solutions/data.html (177 words)

	EIP308 - 8-Port Ethernet Switch
		All switches operate at half or full duplex mode and automatically adapt to the mode and speed of the incoming data traffic.
		Panel and DIN mountable and tested for shock, free fall and vibration, this rugged switch is suited for installations where an office-grade switch won’t survive.
		A redundant 9 to 30 VDC power input is provided to keep the switch up and running even when the primary power goes down.
	www.bb-elec.com /product.asp?sku=EIP308 (280 words)

	Catalyst 2980G Switch, Gigabit Ethernet
		The cost-effective Catalyst 2980G is the industry's highest density, small form factor, fixed-configuration Ethernet switch in an extremely compact package---only two rack units (3.5", 8.8cm) high---delivering maximum ease of management and configuration.
		The Catalyst 2980G delivers all the Ethernet switching needed for many small- to medium-sized wiring closets in a single system without the need for additional modules, cables or other interconnects.
		The Catalyst 2980G is a dedicated Ethernet switch featuring high-performance, Layer 2 switching for the wiring closet with low cost-per-port and advanced yet stable software capable of supporting a wide variety of switching features.
	www.tribecaexpress.com /cisco2980.htm (588 words)

	DYMEC - Products - Ethernet Switch (Site not responding. Last check: 2007-10-18)
		The DYMEC family of Ethernet Switch Systems (ESS) provides high performance data connectivity in harsh environments where general-purpose commercial products would fail.
		Ethernet Switch Systems extends Ethernet networking into harsh environments reliably and simply.
		Ethernet Switch Systems are available in 8, 16 or 24 port 10/100 Ethernet configurations with optional single or dual gigabit Ethernet ports.
	www.dymec.com /products/switch.htm (307 words)

	THE D-LINK DSS-5+ 5-PORT ETHERNET SWITCH
		When a computer sends an Ethernet packet to a hub, the hub forwards the packet to all of its ports and thus to all of the computers on the LAN.
		That is, the hub and the computers connected to the hub form one network segment (or Ethernet collision domain).
		When the switch receives a packet, it reads the destination address, establishes a temporary connection between the source and destination ports, sends the packet on its way, and then terminates the connection.
	www.duxcw.com /digest/Reviews/Network/dlink/dss-5plus.htm (480 words)

	Switches - Products & Services - Cisco Systems
		Secure, intelligent switching architectures are designed to simplify deployment and manageability.
		Cisco's Intelligent Switching Portfolio is a core technology foundation of the Cisco Intelligent Network.
		Cisco Catalyst switches with Network Admission Control (NAC) help limit the propagation of worms, viruses, and other security threats.
	www.cisco.com /en/US/products/hw/switches (161 words)

	ethernet switch (Site not responding. Last check: 2007-10-18)
		The Nortel Ethernet Routing Switch 8600 is a chassis-based Ethernet switch supporting from 8 to 128 Gigabit Ethernet ports as well as connectivity for 10 Gigabit Ethernet, ATM, PoS, and Wave Division Multiplexing technologies.
		The Nortel Ethernet Switch 470 models are stackable 10/100 Mbps Ethernet Layer 2 switches in a compact 1 rack-unit high design and provide high-density desktop connectivity for mid size and large enterprise customers` wiring closets.
		The Etherswitch-5 industrial Ethernet switch is designed to perform reliably in even the most severe conditions...
	www.25hrs.info /result/4971.html (678 words)

	Ethernet Switch - Your complete Switches guide
		Ethernet switch firms fall victim to falling prices \| Demand for Ethernet switches is growing, but drastically falling prices are making it difficult for vendors to increase their revenue, according to new research. \|
		Gigabit Ethernet Switches, Gigabit Ethernet Switche, Layer 3 Gigabit Switch, Cisco Gigabit Switches, 16 Port Gigabit Ethernet Switches
		Gigabit Switches and Hubs-Gigabit Ethernet Switch 24 Gigabit Port Switch 16 8 Gigabit Hub
	www.switchesguide.com /ethernetswitch (2340 words)

	Quality Industrial Ethernet Switch (Site not responding. Last check: 2007-10-18)
		I am looking for a top quality Ethernet switch, it must be managed and have VLAN capability and be of industrial standard with rail mount, convection cooling and preferably with a 24Vdc supply.
		Also included with the switch are binary inputs that you can connect for instance to a PLC to determine if there are any problems in the PLC.
		All of their managed switches are built to the highest standards to provide reliable service in harsh environments, including -40 to +85 degrees C with no fans or moving parts.
	www.control.com /1026181820/index_html (1433 words)

	LANParty.com: Compex PS2208B 8-Port 10/100mBit fast ethernet pocket switch Review!
		I always thought that small network products were only for hubs, and switches needed to be much bigger because of the added electronic components and sometimes fans (fans are mainly for managed switches).
		All you have to do is change the position of the switch to match which type of cable you're using.
		For the second test, I added another computer on the switch and while transferring a big file from the main computer to the 3rd computer, I did the usual transfer from the laptop to the main one.
	www.lanparty.com /articles/ps2208b (1541 words)

	CPC4416 Ethernet Switch
		The IPnexus® CPC4416 is an embedded Ethernet switch compatible with both standard CompactPCI® and PICMG® 2.16 backplanes.
		Its support of multiple switching architectures allows devices with dual Ethernet ports alternate data paths in the event of node failure.
		With dual switches in place, the alternate unit can obtain all of its operational and configuration information from the other switch or an external manager, making change-out of failed modules as simple as a hot-swap.
	www.pt.com /products/prod_cpc4416.html?PS0703 (721 words)

	uk ethernet switch
		Signamax Connectivity Systems’ Model 065-7640FSC and 065-7640FSM Fast Ethernet Switch connects workstations and servers using fibre optic cable where Gigabit Ethernet connections are not desired.
		Both switches transparently pass packets of up to 1,522 bytes, allowing their use in networks utilizing IEEE 802.1p and IEEE 802.1Q tagged packets.
		Both the 065-7330 16-port and the 065-7340 24-port switches transparently pass packets of up to 1,522 bytes, allowing their use in networks utilizing IEEE 802.1p and IEEE 802.1Q tagged packets.
	www.omniotech.co.uk /network-connectivity-ethernet-switches2.htm (1446 words)

	Amazon.com: Netgear FS-105 5-Port Fast Ethernet Switch-Metal Case: Electronics (Site not responding. Last check: 2007-10-18)
		The FS100 series Fast Ethernet switches brings the 100 Mbps switching technology in a compact form factor to the small office marketplace at an aggressive price.
		With switch prices coming down to about $10-per-port, it's hard to justify buying anything less than a 10/100-switch for all but the most cost-conscious buyer.
		The one complaint that I have about Netgear switches and routers is that many of them have the ports on the front of the unit instead of the back.
	www.amazon.com /exec/obidos/tg/detail/-/B00002EQCW?v=glance (1741 words)

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