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Topic: Ethernet hub

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	Hubs
		Ethernet hubs and repeaters operate at the Physical Layer of the OSI Reference model and are defined by IEEE 802.3c/d.
		Hubs are a form of repeater for an Ethernet LAN which has multiple ports (they are sometimes also known as "multi-port repeaters" or "active star networks").
		The hub is not able to recognise the addresses in the header of a frame,and therefore is unable to identify which port to send to.
	www.erg.abdn.ac.uk /users/gorry/course/lan-pages/hub.html (966 words)

	Ethernet hub - Wikipedia, the free encyclopedia
		An Ethernet hub or concentrator is a device for connecting multiple twisted pair or fibre optic Ethernet devices together, making them act as a single segment.
		Ethernet hubs are also responsible for forwarding a jam signal to all ports if it detects a collision.
		Hubs also often come with a BNC and/or AUI connector to allow connection to legacy 10BASE2 or 10BASE5 network segments.
	en.wikipedia.org /wiki/Ethernet_hub (569 words)

	Hub - Wikipedia, the free encyclopedia
		A nickname for Carter Notch Hut, New Hampshire, "The hub of the Universe", derived from Boston's nickname.
		Hub, on an aircraft, a part around which propellers are attached
		Hub protein, interacts with many other proteins in the network describing the interactions of proteins within a cell
	en.wikipedia.org /wiki/Hub (239 words)

	Ethernet - Wikipedia, the free encyclopedia
		Ethernet was originally based on the idea of computers communicating over a shared coaxial cable acting as a broadcast transmission medium.
		Despite the huge changes in Ethernet from a thick coaxial cable bus running at 10 Mbit/s to point-to-point links running at 1 Gbit/s and beyond, the different variants remain essentially the same from the programmer's point of view and are easily interconnected using readily available inexpensive hardware.
		The Ethernet Version 2 or Ethernet II frame, the so-called DIX frame (named after DEC, Intel, and Xerox); this is the most common today, as it is often used directly by the Internet Protocol.
	en.wikipedia.org /wiki/Ethernet (4569 words)

	Ethernet (10BT)
		It is also used by other networking systems than Ethernet and may for instance be used to provide telephone lines to offices.
		The use of UTP for Ethernet at 10 Mbps is known as 10 BasebandT (10BT), indicating that it is specified for baseband communications (i.e.
		The hub is a repeater with a number of 10BT ports.
	www.erg.abdn.ac.uk /users/gorry/course/lan-pages/10bt.html (490 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.
		When a hub receives a packet (chunk) of data (a frame in Ethernet lingo) at one of its ports from a PC on the network, it transmits (repeats) the packet to all of its ports and, thus, to all of the other PCs on the network.
		Because they have to operate at half duplex (data flows one way at a time) and a hub retransmits data from one PC to all of the PCs, the maximum bandwidth is 100 Mhz and that bandwidth is shared by all of the PC's connected to the hub.
	www.duxcw.com /faq/network/hubsw.htm (592 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.
		When a hub receives a packet (chunk) of data (a frame in Ethernet lingo) at one of its ports from a PC on the network, it transmits (repeats) the packet to all of its ports and, thus, to all of the other PCs on the network.
		Because they have to operate at half duplex (data flows one way at a time) and a hub retransmits data from one PC to all of the PCs, the maximum bandwidth is 100 Mhz and that bandwidth is shared by all of the PC's connected to the hub.
	duxcw.com /faq/network/hubsw.htm (592 words)

	Ethernet Hub Manufacturers
		This 5 UTP/STP port Ethernet switch hub is auto adapting and has one uplink port for expansion - Detail
		This 10/100M auto negotiation ethernet hub has a maximum speed of 20/200M, supports MAC self learning, and features LED indicators - Detail
		NT-2701 serves as a type of data communication equipment to transparently and directly convert the transmit data from 2M G.703 interface into Ethernet.
	www.alibaba.com /showroom/Ethernet_Hub.html (295 words)

	CTRLink-affordable Industrial Ethernet hub, switches, miniature hub and switches, media converters for controls industry
		Repeating hubs (aka repeaters) are the simplest of hubs — physical-layer devices that are ignorant of the information contained in the frames.
		A maximum of four repeating hubs can be cascaded as long as they do not exceed the geographic limits of the collision domain or the constraints of cable distances.
		Repeating hubs operate at 10 Mbps and are available in the EI series of repeating hubs and the EIM miniature repeating hub.
	www.ctrlink.com /producthelp.htm (2871 words)

	Halfbakery: Mini Ethernet Hub
		The network cable is plugged into the hub, and the hub is plugged into the original device's ethernet card.
		The mini ethernet hub would be simple repeater hub (as opposed to the more complex and expensive ethernet switch).
		Most 4 port hubs are still too big to fit in a pocket and I haven't seen any battery operated ones.
	www.halfbakery.com /idea/Mini_20Ethernet_20Hub (937 words)

	TrafMeter Web Online Help - TrafMeter :: Q0005 :: Ethernet hub
		Hubs are fairly simple devices, consisting of several ports to which network devices can be connected, and sometimes an additional port to which another hub can be connected.
		The Ethernet hub is used as a central connection point for a small network.
		An Ethernet hub’s data capacity for ALL ports combined is limited to the bandwidth of the Ethernet type used.
	lastbit.com /trafmeter/manual/q0005.htm (287 words)

	Compare Prices and Read Reviews on D-Link DFE 910 5-Port Ethernet Hub (DFE-910) at Epinions.com (Site not responding. Last check: 2007-10-30)
		Ethernet can go over 300', which is long enough to connect machines in any home.
		Hubs look almost the same, and most people wouldn't be able to tell the difference in transfer performance with just two machines.
		If you have four machines on your hub and they are all transmitting data, the 100mb speed is divided among the machines needing the bandwidth.
	www.epinions.com /content_27151470212 (1163 words)

	RS232 ethernet converters, industrial ethernet, ethernet switch, wireless ethernet, ethernet cable
		Ethernet is the common name for a local area network (LAN) defined by a series of IEEE 802 standards.
		Ethernet Tech Tip: Adding an Ethernet switch to a LAN divides the network into separate collision domains, reducing the overall traffic on the LAN, improving communication speed and reducing errors.
		Ethernet interfacing equipment such as serial servers bring the TCP/IP platform to industrial systems and allows legacy equipment to be cost-effectively networked.
	www.bb-europe.com /ethernet.asp (362 words)

	Cisco - Fast Ethernet Hub or Ethernet Switch?
		If you presently have a 10-Mbps Ethernet hub and your network is exhibiting signs of congestion, either a Fast Ethernet hub or an Ethernet switch can immediately and dramatically improve network performance.
		The primary advantages of Fast Ethernet hubs for improv-ing LAN performance are their low cost and ease of instal-lation and use.
		Every work-station, server, or other hub connected to a main hub is considered to be within the same network segment, commonly called a “collision domain.” For example, if you connect four 12-port hubs, all 48 attached devices are in the same collision domain, and all of them share the same bandwidth.
	www.cisco.com /warp/public/779/smbiz/languide/p4.html (511 words)

	Ethernet Hub
		Hubs are only required in rooms in Douglas Keen, Gilbert, Hugh Poland and McCormack Halls; and in rooms that 2 computers will be connected to the Network.
		Please follow these instructions to correctly connect your hub unit to the campus network.
		If you have connected the AC adapter and Plug in a different order, the device may not function properly.
	www.wku.edu /www/resnet/hub.html (243 words)

	Ethernet Hub Usb at Ethernet (Site not responding. Last check: 2007-10-30)
		One Available USB port The built in four port Ethernet switch eliminates the need for a separate Ethernet hub for most home networks and many small offices.
		Ethernet port ends Jun pm PDT h a l f b a k e r y.
		A hub or switch is the device where all of the cables come...
	www.infoinfomationcheck.info /ethernet/ethernet-hub-usb.php (1223 words)

	TE100-DS24 (24-port 10/100Mbps Dual Speed Stackable Fast Ethernet Hub) (Site not responding. Last check: 2007-10-30)
		The TE100-DS24 dual speed stackable fast ethernet hub provides a phenomenal level of flexibility and ease of use for migration to higher bandwidth network environments.
		Once the port speed is determined, the hub creates independent segments for the 10Mbps and 100Mbps ports.
		Ethernet workgroups can be upgraded to Fast Ethernet without changing hubs.
	www.trendware.com /products/TE100-DS24.htm (394 words)

	SIXNET Industrial Ethernet Switches - Rugged & Reliable (Site not responding. Last check: 2007-10-30)
		All Ethernet hubs and switches are basically designed to facilitate the interconnection of multiple devices on an Ethernet network.
		The downside is that each Ethernet device has to wait for its turn to 'talk' to the hub, increasing the likelihood of message collisions; therefore, real-time operation is jeopardized and determinism is difficult.
		An Ethernet Managed Switch has all the plug and play capability of the common store and forward switch, plus it is highly configurable and offers advanced capabilities such as SNMP for network management, RSTP for advanced redundancy, IGMP for multicast filtering, VLANs for network segregation and more.
	www.sixnetio.com /html_files/products_and_groups/switches_managed_tour2.htm (276 words)

	Need Ethernet Hub - NOT Switch (Site not responding. Last check: 2007-10-30)
		effect, a 10M hub and a 100M hub, interconnected by a switch.
		A dual speed hub used to be two repeaters linked by a single bridge.
		hubs sitting in a cupboard, surely there must be loads in Emory.
	www.802networks.com /phpBB/about2810.html (1193 words)

	Power Over Ethernet (PoE) FAQ (Site not responding. Last check: 2007-10-30)
		A Power over Ethernet system comprises of an Ethernet switch and a Power-Hub or a Power over Ethernet enabled Ethernet switch, which serves as the power source, and a number of Power enabled DTE, which are the loads.
		The Power-Hub is connected in series to an Ethernet switch/Hub (cascaded) where the Power-Hub inputs are connected to the switch outputs, and the Power-Hub outputs are connected to the patch panel.
		A Power over Ethernet Hub, Power-Hub, resembles a patch panel and has 6, 12 or 24 channels, injects the power to the LAN cables.
	www.powerdsine.com /Support/FAQ (2195 words)

	Battery-Powered Ethernet Hub
		The latest toy in my collection is my battery-powered hub, which is great for playing that impromptu game of network Marathon in an airport, on a plane, or out in the wilderness.
		It's based on a neat little pocket hub from Transition Networks, but it probably would work with any hub that can take 9 VDC [side note: the specs on Transitions's web page say that this hub takes 12 VDC, but the hub itself and the bundled adapter both say 7.5 - 9 VDC].
		The Transition hub was $40, and I had all the other stuff just lying around (doesn't everyone?).
	www.kan.org /networking/batteryhub.html (832 words)

	8 Port, Ethernet Hub, 10/100TX Autoswitch \| \| Parts and accessories \| Networking \|\| IkonPC.com (Site not responding. Last check: 2007-10-30)
		As a stand-alone solution, it can be quickly integrated into a existing Ethernet networks to allow migration to Fast Ethernet, or used out of the box to start a new Fast Ethernet or Ethernet network.
		Installation is as easy as connecting a cable to a hub port and allowing the NWay auto-sensing to negotiate to the highest speed supported by the connected device.
		By combining workgroup level hubs with high performance D-Link switches and routers, a DSH-8 user’s investment is protected as network demands increase, or the size of their network grows.
	www.ikonpc.com /pmoreinfo.asp?iid=365 (474 words)

	3Com LinkBuilder FMS100 Stackable Fast Ethernet Hub
		LinkBuilder FMS 100 hubs combine the performance advantages of 100 Mbps Fast Ethernet technology with the flexi- bility, economy, and manageability of a stackable hub platform.
		Up to eight LinkBuilder FMS 100 hubs can be stacked in a Class I Fast Ethernet configuration-yielding up to 104 ports per stack (comprising one logi- cal repeater), in one unsegmented Fast Ethernet network.
		LinkBuilder FMS 100 hubs are an inte- gral part of 3Com's SuperStack, a system architecture that interconnects hubs, switches, routers, remote access servers, and SNA-to-LAN conversion devices for Ethernet, Fast Ethernet, Token Ring, Fiber Distributed Data Interface (FDDI), Asynchronous Transfer Mode (ATM), and SNA network connectivity.
	www.kmj.com /fast/fms100.html (693 words)

	IIT Documentation - Ethernet Hub Info
		Any hub purchased should be compatible with a 10BaseT network, which is what St. Olaf uses.
		One of the ports is used for the connection to the wall jack, giving you either three or five Ethernet ports depending on the model you buy.
		You will need a standard RJ45-45 cable for the connection from the hub to your computer and either an RJ45-45 or RJ45-11 cable (depending on which hall you live in) to connect the hub to the wall jack.
	www.stolaf.edu /services/iit/resnet/hub_info.html (219 words)

	8 Port, Ethernet Hub, 10/100 Base-T, Dual Speed \| \| Parts and accessories \| Networking \|\| IkonPC.com (Site not responding. Last check: 2007-10-30)
		These reliable, plug-and-play hubs also offer a smooth way to migrate to Fast Ethernet performance for maximum growth and flexibility by connecting both Ethernet and Fast Ethernet PCs or network devices.
		The OfficeConnect Dual Speed Hub 8 features eight 10/100 Mbps Ethernet hub ports that automatically sense and match the speed of an attached network device to optimize performance.
		Designed as Class II repeating hubs, OfficeConnect Dual Speed hubs can be connected to other Fast Ethernet hubs and switches as high-speed bandwidth needs increase.
	www.ikonpc.com /pmoreinfo.asp?iid=364 (203 words)

	Amazon.com: Netgear EN104TP 4-Port 10 Mbps Ethernet Hub RJ-45 with Uplink Button: Electronics (Site not responding. Last check: 2007-10-30)
		The Netgear EN104TP is an Ethernet hub supporting four 10Base-T ports and a push-button uplink port for network expansion.
		I use this hub as a backup when my 100 base switch fails, which appears to be quite often.
		This hub has saved me on many occassions, and while it is only 10 base, it still works 100% of the time flawlessly.
	www.amazon.com /exec/obidos/tg/detail/-/B00000J4M9?v=glance (1537 words)

	Ethernet Hub - All Products for Ethernet Hub Manufacturers and Suppliers from Taiwan, China and Worldwide
		If you did not satisied the Ethernet Hub results, please fill out the form "Disstatisfied Results" to remind us to improve our service and creat more opportunities for you.
		It allows you link up to five hubs via built-in stack ports in a single segment, all without having to use switches or other expensive network interconnection equipment.
		This convenient USB massage ball can properly massage almost any place of your body, the temples, the shoulder, the back, the waist, the thigh, the sole, and so on, as convenient as you can reach.There is On/off switch on the massager.
	www.allproducts.com /search/products/pE080302.shtml (643 words)

	Usb ethernet hub (Site not responding. Last check: 2007-10-30)
		usb ethernet hub depends on dynex usb hub.
		is focused on blue tooth usb hub is the same as belkin usb 4 port hub
		, hub in one reader usb depends on usb printer hub.
	www.webrost.com /new/usbethernethub.htm (244 words)

	Smartlink ethernet hub (Site not responding. Last check: 2007-10-30)
		Ethernet switching hubs, controller cards, cables, converters, transceivers at RamElectronics.net.
		OFC ETHERNET HUB 4 4 PORT RJ45 10BT (3C16704A-US...
		Using standard Ethernet communication technology, SmartLink transfers images from up...
	ethernet.frqt.com /index.php?kid=smartlink-ethernet-hub (126 words)

	NBase NH 108 100BaseTx Fast Ethernet Hub (Site not responding. Last check: 2007-10-30)
		The NH 108 Fast Ethernet Hub is an economical 100 BaseTX repeater that supports eight 100 Mbps workstations or servers.
		The MegaHub NH 108 has an uplinkable port that lets you connect the hub to another MegaHub providing a maximum of 14 ports on the same collision domain.
		The hub also has several LEDs that help you monitor the hub's status at the hub and port levels.
	www.kmj.com /fast/nfast.html (388 words)

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