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142-725: PowerConnect was a Dell series of network switches . The PowerConnect "classic" switches are based on Broadcom or Marvell Technology Group fabric and firmware. Dell acquired Force10 Networks in 2011 to expand its data center switch products. Dell also offers the PowerConnect M-series which are switches for the M1000e blade-server enclosure and the PowerConnect W-series which is a Wi-Fi platform based on . Starting in 2013 Dell will re- brand their networking portfolio to Dell Networking which covers both

284-485: A graphical user interface . PowerConnect 3424, 3424P, 3448, and 3448P were fully managed 10/100 switches with gigabit uplinks. All have four Gigabit ports, two copper and two SFP modular, all of which may be used at once. The 3424 and 3424P have 24 10/100 ports, the 3448 and 3448P have 48. The 3424P and 3448P provide power over Ethernet on all 10/100 ports (PowerConnect 3448P requires EPS-470 for full 15.4 W on all ports simultaneously). The switches are stackable using

426-421: A graphical user interface . They are discontinued. PowerConnect 2808, 2816, 2824, and 2848 are dual-mode unmanaged or web-managed all-Gigabit workgroup switches (10/100/1000). 8, 16, 24, or 48 ports respectively. On the 2824 and 2848, there are an additional 2 small form-factor pluggable transceiver (SFP) modules, for fiber-optic connectivity. Switches ship in a plug-n-play unmanaged mode and can be managed via

568-522: A 25 kΩ resistor between the powered pairs. If the PSE detects a resistance that is too high or too low (including a short circuit), no power is applied. This protects devices that do not support PoE. An optional power class feature allows the PD to indicate its power requirements by changing the sense resistance at higher voltages. To retain power, the PD must use at least 5–10 mA for at least 60 ms at

710-415: A 9 V to 36 V DC, or 36 V to 72 V DC power source to a stabilized 24 V 1 A, 48 V 0.5 A, or up to 48 V 2.0 A PoE feed with '+' on pins 4 & 5 and '−' on pins 7 & 8. These DC-to-DC PoE injectors are used in various telecom applications. The ISO/IEC TR 29125 and Cenelec EN 50174-99-1 draft standards outline the cable bundle temperature rise that can be expected from

852-741: A Dell press release stated that starting in September, Dell Dimension desktop computers would have AMD processors and that later in the year Dell would release a two-socket, quad-processor server using AMD Opteron chips, moving away from Dell's tradition of only offering Intel processors in Dell PCs. CNET 's News.com on August 17, 2006, cited Dell's CEO Kevin Rollins as attributing the move to AMD processors to lower costs and to AMD technology. AMD's senior VP in commercial business, Marty Seyer, stated: "Dell's wider embrace of AMD processor-based offerings

994-495: A PCM8024-k blade. The original PCM8024 did not support stacking Also with the introduction of that firmware the switches now also support Fibre Channel over Ethernet via the added functionality FIP Snooping. The PowerConnect 8100 series switches announced in 2012 offered 24 or 48 ports on 10 Gb and 0 or 2 built-in ports for 40 Gb QSFP ports. All models also have one extension-module slot with either two QSFP 40 Gb ports, 4 SFP+ 10 Gb ports or 4 10GbaseT ports. It

1136-407: A PoE device, an external PoE injector , called a midspan device. A powered device (PD) is any device powered by PoE, thus consuming energy. Examples include wireless access points , VoIP phones , and IP cameras . Many powered devices have an auxiliary power connector for an optional external power supply. Depending on the design, some, none, or all of the device's power can be supplied from

1278-596: A Voluntary Separation Program that they expected to reduce their workforce by up to seven percent. The reception to the program so exceeded the expectations that Dell may be forced to hire new staff to make up for the losses. On November 19, 2015, Dell, alongside Arm Holdings , Cisco Systems , Intel , Microsoft , and Princeton University , founded the OpenFog Consortium , to promote interests and development in fog computing . On October 12, 2015, Dell Inc. announced its intent to acquire EMC Corporation in

1420-514: A bid to host it. Less than a year later, Dell planned to double its workforce to nearly 3,000 workers add a new building. These plans were reversed, due to a high Canadian dollar that made the Ottawa staff relatively expensive, and also as part of Dell's turnaround, which involved moving these call-center jobs offshore to cut costs. The company had also announced the shutdown of its Edmonton , Alberta , office, losing 900 jobs. In total, Dell announced

1562-425: A cash-and-stock deal valued at $ 67 billion (equivalent to $ 84,210,000,000 in 2023), which has been considered the largest-ever acquisition in the technology sector. As part of the acquisition, Dell would take over EMC's 81% stake in the cloud-computing and virtualization company VMware . This would combine Dell's enterprise server, personal computer, and mobile businesses with EMC's enterprise storage business in

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1704-427: A change campaign called "Dell 2.0," reducing the number of employees and diversifying the company's products. While chairman of the board after relinquishing his CEO position, Michael Dell still had significant input in the company during Rollins' years as CEO. With the return of Michael Dell as CEO, the company saw changes in operations, the exodus of many senior vice-presidents and new personnel brought in from outside

1846-719: A combination of internal interfaces and external interfaces. The internal interfaces connect to the mezzanine card of the blade servers in the M1000e enclosure. These internal interfaces can be one or 10 Gbit/s. The M6220 offers a total of 20 interfaces: 16 internal 1 Gb interfaces and 4 external 1 Gb ports. Optionally two extension modules can be installed that offers 10 Gb Ethernet or stacking interfaces to stack multiple M6220 switches together as one virtual switch. The M6348 has 32 internal ports (2 per blade) and 16 external 1 Gbit/s ports. The M6348 can be stacked via CX4 modules and/or create 10 Gbit/s SFP+ uplinks. The M8024 series offer 10 Gb on all interfaces:

1988-464: A family or model number below the 6000 and are based on Marvell hardware. Each model has its own family of firmware with different CLI and GUI (the PCT5500 series offer very limited layer-3 options, but is mainly a layer-2 switch). The switches with a model-number above 6000 are based on Broadcom hardware. Although each switch has its own firmware images; the options and capabilities on these switches are

2130-485: A few months to improve on this and rolled out DellConnect to answer customer inquiries more quickly. In July 2006, the company started its Direct2Dell blog, and then in February 2007, Michael Dell launched IdeaStorm.com, asking customers for advice including selling Linux computers and reducing the promotional "bloatware" on PCs. These initiatives did manage to cut the negative blog posts from 49% to 22%, as well as reduce

2272-490: A maximum speed of 8 MHz. PC's Limited marketed these systems through national computer magazines, selling directly to consumers while custom-assembling each unit based on a range of options. This approach allowed them to offer competitive prices compared to retail brands, coupled with the convenience of pre-assembled units, making them one of the early success stories of this business model. The company grossed over $ 73 million in its first year of operation. The company dropped

2414-411: A move that would eventually occur over 12 years later. In 2003, at the annual company meeting, the stockholders approved changing the company name to "Dell Inc." to recognize the company's expansion beyond computers. In 2004, the company announced that it would build a new assembly-plant near Winston-Salem , North Carolina ; the city and county provided Dell with $ 37.2 million in incentive packages;

2556-437: A negative impact on Dell and other major PC vendors, as consumers switched away from desktop and laptop PCs. Dell's own mobility division has not managed success with developing smartphones or tablets, whether running Windows or Google Android . The Dell Streak was a failure commercially and critically due to its outdated OS, numerous bugs, and low resolution screen. InfoWorld suggested that Dell and other OEMs saw tablets as

2698-428: A passive PoE system, the injector does not communicate with the powered device to negotiate its voltage or wattage requirements, but merely supplies power at all times. Common 100 Mbit/s passive applications use the pinout of 802.3af mode B (see § Pinouts ) – with DC positive on pins 4 and 5 and DC negative on 7 and 8 and data on 1–2 and 3–6, but polarization may vary. Gigabit passive injectors use

2840-407: A power supply within a PoE-enabled networking device such as an Ethernet switch or can be injected into a cable run with a midspan power supply, an additional PoE power source that can be used in combination with a non-PoE switch. A phantom power technique is used to allow the powered pairs to also carry data. This permits its use not only with 10BASE-T and 100BASE-TX , which use only two of

2982-562: A proprietary form of PoE many years before there was an IEEE standard for delivering PoE. Cisco's original PoE implementation is not software upgradeable to the IEEE 802.3af standard. Cisco's original PoE equipment is capable of delivering up to 10 W per port. The amount of power to be delivered is negotiated between the endpoint and the Cisco switch based on a power value that was added to the Cisco proprietary Cisco Discovery Protocol (CDP). CDP

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3124-412: A reputation as a company that relied upon supply chain efficiencies to sell established technologies at low prices, instead of being an innovator. By the mid-2000s many analysts were looking to innovating companies as the next source of growth in the technology sector. Dell's low spending on R&D relative to its revenue (compared to IBM , Hewlett-Packard , and Apple Inc. )—which worked well in

3266-554: A result, the company was selling a greater proportion of inexpensive PCs than before, which eroded profit margins. The laptop segment had become the fastest-growing of the PC market, but Dell produced low-cost notebooks in China like other PC manufacturers which eliminated Dell's manufacturing cost advantages, plus Dell's reliance on Internet sales meant that it missed out on growing notebook sales in big box stores. CNET has suggested that Dell

3408-460: A share. In 1989, Dell Computer set up its first on-site service programs in order to compensate for the lack of local retailers prepared to act as service centers. In 1990, Dell Computer tried selling its products indirectly through warehouse clubs and computer superstores, but met with little success, and the company re-focused on its more successful direct-to-consumer sales model. In 1992, Fortune included Dell Computer Corporation in its list of

3550-698: A short-term, low-investment opportunity running Google Android , an approach that neglected user interface and failed to gain long term market traction with consumers. Dell has responded by pushing higher-end PCs, such as the XPS line of notebooks, which do not compete with the Apple iPad and Kindle Fire tablets. The growing popularity of smartphones and tablet computers instead of PCs drove Dell's consumer segment to an operating loss in Q3 2012. In December 2012, Dell suffered its first decline in holiday sales in five years, despite

3692-465: A significant Vertical merger of IT giants. Dell would pay $ 24.05 per share of EMC, and $ 9.05 per share of tracking stock in VMware . The announcement came two years after Dell Inc. returned to private ownership, claiming that it faced bleak prospects and would need several years out of the public eye to rebuild its business. It was thought that the company's value had roughly doubled since then. EMC

3834-530: A single Cat 5e Ethernet cable, is capable of supplying varying levels at 38.7, 52.7, 70, and 90 W. PowerDsine , acquired by Microsemi in 2007, which was then acquired by Microchip in 2018, has been selling midspan power injectors since 1999. Using Microchip's multi-PoE PSE ICs, PoE injectors and switches can support the IEEE 802.3 PoE standards and also pre-standard configurations. Several companies such as Polycom , 3Com , Lucent and Nortel used PowerDsine's older Power over LAN PoE implementation. In

3976-631: A single IP. Stacking is done by assigning (multiple) 10 Gb Ethernet ports as stacking-ports. Also under the M-series name Dell offers the Brocade Communications Systems M5424 8 Gb Fibre Channel switch and the M8428-k Converged 10GbE Switch which offers 10GbE performance, FCoE switching, and low-latency 8 Gb Fibre Channel (FC) switching and connectivity. Other switches and I/O modules for

4118-513: A single cable to provide both a data connection and enough electricity to power networked devices such as wireless access points (WAPs), IP cameras and VoIP phones . There are several common techniques for transmitting power over Ethernet cabling. Three of them have been standardized by the Institute of Electrical and Electronics Engineers (IEEE) standard IEEE 802.3 since 2003. The three techniques are: Alternative A transmits power on

4260-418: A strong performance from its artificial intelligence unit that sent shares up nearly 40%, its highest daily gain since the company went public in 2018. In August 2024, the company announced it would be laying off 12,500 employees—10% of its workforce—in order to invest in artificial intelligence initiatives. When Dell acquired Alienware early in 2006, some Alienware systems had AMD chips. On August 17, 2006,

4402-574: A student at the University of Texas at Austin , operating from Michael Dell's off-campus dormitory room at Dobie Center . The start-up aimed to sell IBM PC compatible computers built from stock components. Michael Dell started trading in the belief that, by selling personal computer systems directly to customers, PC's Limited could better understand customers' needs and provide the most effective computing solutions to meet those needs. Dell dropped out of college upon completion of his freshman year at

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4544-416: A time but struggled and Dell soon regained its lead. Dell grew the fastest in the early 2000s. In 2002, Dell expanded its product line to include televisions, handhelds , digital audio players, and printers . Chairman and CEO Michael Dell had repeatedly blocked President and COO Kevin Rollins's attempt to lessen the company's heavy dependency on PCs, which Rollins wanted to fix by acquiring EMC Corporation;

4686-419: A time. If the PD goes more than 400 ms without meeting this requirement, the PSE will consider the device disconnected and, for safety reasons, remove power. There are two types of PSEs: endspans and midspans. Endspans (commonly called PoE switches) are Ethernet switches that include the power over Ethernet transmission circuitry. Midspans are power injectors that stand between a regular Ethernet switch and

4828-462: A total of 15 power classes with additional intermediate voltage and power levels. Examples of devices powered by PoE include: Power sourcing equipment (PSE) are devices that provide ( source ) power on the Ethernet cable. This device may be a network switch , commonly called an endspan (IEEE 802.3af refers to it as endpoint ), or an intermediary device between a non-PoE-capable switch and

4970-436: A transformer on the data pins to allow power and data to share the cable and are typically compatible with 802.3af Mode A. Passive midspan injectors with up to 12 ports are available. Devices needing 5 volts cannot typically use PoE at 5 V on Ethernet cable beyond short distances (about 15 feet (4.6 m)) as the voltage drop of the cable becomes too significant, so a 24 V or 48 V to 5 V DC-DC converter

5112-517: Is a layer-2 Ethernet protocol for managing devices. LLDP allows an exchange of information between a PSE and a PD. This information is formatted in type–length–value (TLV) format. PoE standards define TLV structures used by PSEs and PDs to signal and negotiate available power. The setup phases are as follows: The rules for this power negotiation are: There are more than ten proprietary implementations. The more common ones are discussed below. Some Cisco WLAN access points and VoIP phones supported

5254-457: Is a small (1U) switch with a high port density and can be used as distribution or (collapsed)core switch for campus networks and for use in the data center it offers features such as lossless Ethernet for iSCSI and FCoE, data center bridging (DCB) and iSCSI Auto-configure The PCT8100 series is a multi-layer switch that can be used as either a pure layer-2 Ethernet switch or as a "layer-3" switch with extensive IP routing functions. Most routing

5396-529: Is a win for Dell, for the industry and most importantly for Dell customers." On October 23, 2006, Dell announced new AMD-based servers — the PowerEdge 6950 and the PowerEdge SC1435. Power over Ethernet Power over Ethernet ( PoE ) describes any of several standards or ad hoc systems that pass electric power along with data on twisted-pair Ethernet cabling. This allows

5538-463: Is about the legacy Dell PowerConnect switches that are no longer for sale. For the current portfolio please see the Dell Networking page. All Dell switches will be rebranded to Dell Networking and will then have a different naming system based on a letter and a four-digit number. But the current PowerConnect rack-switches will keep their current name until they reach end of sales, except for

5680-716: Is also responsible for dynamically communicating the Voice VLAN value from the Cisco switch to the Cisco VoIP Phone. Under Cisco's pre-standard scheme, the PSE (switch) will send a fast link pulse (FLP) on the transmit pair. The PD (device) connects the transmit line to the receive line via a low-pass filter . The PSE gets the FLP in return. The PSE will provide a common mode current between pairs 1 and 2, resulting in 48 V DC and 6.3 W default of allocated power. The PD must then provide Ethernet link within 5 seconds to

5822-486: Is also the largest technology buyout ever, surpassing the 2006 buyout of Freescale Semiconductor for $ 17.5 billion (equivalent to $ 25,450,000,000 in 2023). Michael Dell said of the February offer "I believe this transaction will open an exciting new chapter for Dell, our customers and team members". Dell rival Lenovo responded to the buyout, saying, "the financial actions of some of our traditional competitors will not substantially change our outlook." In March 2013,

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5964-510: Is assured to be available at the powered device as some power dissipates in the cable. The IEEE 802.3at-2009 PoE standard, also known as PoE+ or PoE plus , provides up to 25.5 W of power for Type 2 devices. The 2009 standard prohibits a powered device from using all four pairs for power. Both of these standards have since been incorporated into the IEEE 802.3-2012 publication. The IEEE 802.3bt-2018 standard further expands

6106-510: Is done in hardware and can be done at (near) wire speed. Management can be done via the out-of-band Ethernet interface or in-band by connecting to one of the VLAN IP addresses. Management is possible via HTTP(s), telnet, SSH or even serial console cable. Up to 6 units in the 8100 series can be stacked to form one logical switch and any type of interface (10 Gb or 40 Gb, fiber-optical or utp copper) can be used for stacking. Similar to

6248-461: Is generally backward compatible: one can run firmware of a lower version then the boot-code version; when upgrading firmware one do NOT need to upgrade the boot-code unless specifically directed in the release note or by Dell support, but when downgrading one leave the newer boot-code in place. On the level2 switches (Marvell based) the bootcode is delivered as a separate file that needs to be copied to one's switch. The multi-layer switches however have

6390-401: Is included. This development opens the door to new applications and expands the use of applications such as high-performance wireless access points and surveillance cameras. The IEEE 802.3bu-2016 amendment introduced single-pair Power over Data Lines ( PoDL ) for the single-pair Ethernet standards 100BASE-T1 and 1000BASE-T1 intended for automotive and industrial applications. On

6532-485: Is made worse by the thin conductors of Ethernet. Advocates of PoE, like the Ethernet Alliance , point out that quoted losses are for worst case scenarios in terms of cable quality, length and power consumption by powered devices. In any case, where the central PoE supply replaces several dedicated AC circuits, transformers and inverters, the power loss in cabling can be justifiable. The integration of PoE with

6674-399: Is owned by its parent company Dell Technologies since a restructuring in 2016. Founded by Michael Dell in 1984, Dell started making IBM clone computers and pioneered selling cut-price PCs directly to customers, managing its supply chain and electronic commerce . The company rose rapidly during the 1990s and in 2001 it became the largest global PC vendor for the first time. Dell

6816-521: Is possible to configure a switch so that it allows both oob as 'in band' management when one assigns an IP address to a vlan interface one can manage the switch via that address. The oob interface allows http, https, telnet or ssh access The 8024 can be used as pure layer-2 switch or as a layer-3 switch . These switches were introduced in early 2010, in the same single rack unit (1U) size. The rack-models reached end-of-sale in January, 2013.. With

6958-425: Is required at the remote end. Passive PoE power sources are commonly used with a variety of indoor and outdoor wireless radio equipment, most commonly from Motorola (now Cambium), Ubiquiti Networks , MikroTik and others. Earlier versions of passive PoE 24 VDC power sources shipped with 802.11a, 802.11g and 802.11n based radios are commonly 100 Mbit/s only. Passive DC-to-DC injectors also exist which convert

7100-486: The Blackstone Group and Carl Icahn expressed interest in purchasing Dell. In April 2013, Blackstone withdrew their offer, citing deteriorating business. Other private equity firms such as KKR & Co. and TPG Capital declined to submit alternative bids for Dell, citing the uncertain market for personal computers and competitive pressures, so the "wide-open bidding war" never materialized. Analysts said that

7242-864: The NASDAQ-100 and S&P 500 . Dell is ranked 31st on the Fortune 500 list in 2022, up from 76th in 2021. It is also the sixth-largest company in Texas by total revenue, according to Fortune magazine. It is the second-largest non-oil company in Texas. As of 2024, it is the world's third-largest personal computer vendor by unit sales, after Lenovo and HP . In 2015, Dell acquired the enterprise technology firm EMC Corporation , together becoming divisions of Dell Technologies. Dell EMC sells data storage, information security, virtualization , analytics, and cloud computing . Michael Dell founded Dell Computer Corporation, doing business as PC's Limited in 1984 while

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7384-701: The PC's Limited name in 1987 to become Dell Computer Corporation and began expanding globally. The reasoning was that this new company name better reflected its presence in the business market, and also resolved issues with the use of "Limited" in a company name in certain countries. The company set up its first international operations in Britain; 11 more followed within the next four years. In June 1988, Dell Computer's market capitalization grew by $ 30 million to $ 80 million (equivalent to $ 177,850,000 in 2023) from its June 22 initial public offering of 3.5 million shares at $ 8.50

7526-641: The center tap of the standard Ethernet pulse transformer . For Gigabit Ethernet and faster, both alternatives A and B transmit power on wire pairs also used for data since all four pairs are used for data transmission at these speeds. 4PPoE provides power using all four pairs of a twisted-pair cable. This enables higher power for applications like pan–tilt–zoom cameras (PTZ), high-performance wireless access points (WAPs), or even charging laptop batteries . In addition to standardizing existing practice for spare-pair ( Alternative B ), common-mode data pair power ( Alternative A ) and 4-pair transmission ( 4PPoE ),

7668-543: The same features as the PowerConnect 7000 and 8024 rack-switches and the different M-series Ethernet switches. The underlying operating system of the PCT8100 is based on Linux 2.6 where all other 'Broadcom powered' PowerConnects run on VxWorks . The PowerConnect M-series switches are classic Ethernet switches based on Broadcom fabric for use in the blade server enclosure M1000e . All M-series switches offer

7810-453: The "Dell Hell" prominent on Internet search engines. There was also criticism that Dell used faulty components for its PCs, particularly the 11.8 million OptiPlex desktop computers sold to businesses and governments from May 2003 to July 2005 that suffered from faulty capacitors . A battery recall in August 2006, as a result of a Dell laptop catching fire, caused much negative attention for

7952-513: The (new) 8100 series: these will be renamed to DN N-40xx series. The existing Force10 switches will mainly keep their current name and numbering (e.g. DN S-4800 series, DN S-5000, DN-Z9000 etc. Models 2216 and 2224 were unmanaged, 10/100 Mbit/s Ethernet over twisted pair switches, with 16 and 24 ports each, respectively. They were discontinued. The PowerConnect 2324 was similar to 2224, but includes 2 Gigabit Ethernet ports for uplink or server purposes. The PowerConnect 2600 series included

8094-436: The 10 Gb switches was added in firmware version 4.1 In release 5.0 the switches will start to support private vlan's and Unidirectional Link Detection. On the management level Tacacs + accounting was added. All Powerconnect switches can be configured via either a built-in web- GUI or the command line interface or CLI (except for the entry-level layer 2 Powerconnects that only offer web-based configuration or can run in

8236-428: The 2608, 2616 and 2624. They are un-managed Gigabit Ethernet workgroup switches with all ports at 10/100/1000 MBit/s. The 2624 model features an SFP port for fiber uplinks. They too are discontinued. The PowerConnect 27xx series of switchers were web-managed all-Gigabit workgroup switches (10/100/1000) with eight, 16, 24, or 48 ports respectively. Switches shipped in a plug-n-play unmanaged mode and can be managed via

8378-466: The 48 V DC, and pins 3 and 6 (pair #3 in T568B) form the other side. These are the same two pairs used for data transmission in 10BASE-T and 100BASE-TX, allowing the provision of both power and data over only two pairs in such networks. The free polarity allows PoE to accommodate for crossover cables, patch cables and Auto MDI-X . In mode B, pins 4–5 (pair #1 in both T568A and T568B) form one side of

8520-402: The 5212 (12 copper Gb ports and 4 SFP ports) and the 5224 (24 copper Gb ports and 4 SFP ports) The PowerConnect 5316M was similar in software and function to other 53xx series switches but physically designed to fit one of the four IO bays in the 1855/1955 blade chassis. 16 ports, 10 of which are allocated to the 10 blade slots in the chassis, 6 are accessible via the back panel of the switch. It

8662-467: The 5500 never passed the acceptance tests. The 5400 series offered 4 SFP ports for 1G fiber uplinks to a core or distribution layer and the 24 or 48 RJ45 ports are either normal 1G Ethernet or 1G Ethernet with PoE option. PowerConnect 5500 series switches, the successor of the 5400 series, are based on Marvell technology. They offer 24 or 48 Gigabit Ethernet ports with (-P series) or without PoE. The 5500 have built-in stacking ports, using HDMI cables and

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8804-449: The 6200 series continue to run on version 3.x and features introduced in the 4.x firmware are not available for the 6200 series switches.(note: this does NOT apply to the PCM 6220 blade-switch) The PowerConnect 7024 and 7048 were introduced April 1, 2011. They had the same ports as the 6224/6248, QoS features for iSCSI, and incorporate 802.3az Energy Efficient Ethernet . The 7000-series offer

8946-463: The 8024F. On the 8024 the last 4 ports (21-24) are combo-ports with the option to use the 4 SFP+ slots to use fiber optic connections for longer-distance uplinks to core switches. On the 8024F the 4 combo ports offer 10GBASE-T copper-ports. The PCT8024 series also offers out-of-band management via an extra Ethernet port. This port only gives access to the management of the switch: it doesn't allow to route or switch (other) traffic over this connection. It

9088-501: The 8100 series the switches will run on DNOS or Dell Networking Operating System which is based on a Linux kernel for DNOS 5.x and 6.x. Via PowerConnect W-series Dell offers a range of Aruba WiFi products . The Powerconnect-J ( Juniper Networks ) and B ( Brocade ) series are not longer sold, except for the B8000e/ PCM8428-K full FCoE switches. Most of these products are now replaced by Force10 models. This page

9230-693: The Asian PC vendors had been improving their quality and design—for instance, Lenovo's ThinkPad series was winning corporate customers away from Dell's laptops—Dell's customer service and reputation had been slipping. Dell remained the second-most profitable PC vendor, as it took 13 percent of operating profits in the PC industry during Q4 2012, behind Apple's Mac that took 45 percent, seven percent at Hewlett Packard, six percent at Lenovo and Asus, and one percent for Acer. Dell attempted to offset its declining PC business, which still accounted for half of its revenue and generates steady cash flow, by expanding into

9372-474: The DC supply and pins 7–8 (pair #4 in both T568A and T568B) provide the return; these are the spare pairs in 10BASE-T and 100BASE-TX. Mode B, therefore, requires a 4-pair cable. The PSE, not the PD, decides whether power mode A or B shall be used. PDs that implement only mode A or mode B are disallowed by the standard. The PSE can implement mode A or B or both. A PD indicates that it is standards-compliant by placing

9514-447: The DC supply, so two pairs are required to complete the circuit. The polarity of the DC supply may be inverted by crossover cables ; the powered device must operate with either pair: spare pairs 4–5 and 7–8 or data pairs 1–2 and 3–6. Polarity is defined by the standards on spare pairs, and ambiguously implemented for data pairs, with the use of a diode bridge . Notes: Three modes, A, B, and 4-pair are available. Mode A delivers power on

9656-622: The Dell PowerConnect offered "combination" ports: the last 4 ports on the switch are either copper (UTP/RJ-45) or fiber (SFP) ports: for example, the PC6224 offers 20 copper-only interfaces while ports 21-24 can be found twice on the front of the switch: as standard UTP ports and also as SFP slots, but one can only use one of them: by default the UTP port is enabled but when one inserts a SFP module in port 21-24 it switches over to fibre mode and

9798-409: The IEEE 802.3az Energy-Efficient Ethernet (EEE) standard potentially produces additional energy savings. Pre-standard integrations of EEE and PoE (such as Marvell 's EEPoE outlined in a May 2011 white paper) claim to achieve a savings upwards of 3 W per link. This saving is especially significant as higher power devices come online. Standards-based Power over Ethernet is implemented following

9940-564: The IEEE PoE standards provide for signaling between the power sourcing equipment (PSE) and powered device (PD). This signaling allows the presence of a conformant device to be detected by the power source, and allows the device and source to negotiate the amount of power required or available while avoiding damage to non-compatible devices. The original IEEE 802.3af-2003 PoE standard provides up to 15.4 W of DC power (minimum 44 V DC and 350 mA) on each port. Only 12.95 W

10082-469: The M1000e blade-enclosure are the Cisco Systems 3032 and 3130 switches and several pass-through modules that bring the internal interfaces from the midplane to the exterior to connect these server-NIC's to external switches Dell PowerConnect switches are based on Marvell technologies or Broadcom hardware and each of them offer entirely different firmware types. All layer-2 Ethernet switches have

10224-709: The M8024-k has 16 internal 10 Gb ports, 4 SFP+ slots and the option to install a FlexIO module that can offer 4 SFP+ ports, 3 CX-4 or 2 10GBaseT copper interfaces. The M8024-k was announced in May 2011. With the firmware upgrade announced in December 2011, the M8024-k is also a Fibre Channel over Ethernet (FCoE) transit switch that can extend an available FCoE fabric. The M8024-k uses FCoE Initialization Protocol (FIP) to perform functions of FC_BB_E device discovery, initialization and maintenance. The FIP snooping feature enables

10366-435: The M8024-k to link Dell M-Series blades to an external top-of-rack or end-of-row FCoE forwarding switch and provides FCoE connectivity to the servers. This feature, along with Internet SCSI optimization, iSCSI TLV, and DCBx discovery and monitoring, enables seamless 10GbE performance in an end-to-end data center solution. In addition, with the recent firmware release, up to 6 M8024-k switches can now be stacked and managed through

10508-465: The NASDAQ and Hong Kong Stock Exchange and taken it private. Reuters reported that Michael Dell and Silver Lake Partners , aided by a $ 2 billion loan from Microsoft , would acquire the public shares at $ 13.65 apiece. The $ 24.4 billion buyout was projected to be the largest leveraged buyout backed by private equity since the 2007–2008 financial crisis (equivalent to $ 34,550,000,000 in 2023). It

10650-758: The North American market, including the Mort Topfer Manufacturing Center in Austin, Texas (original location) and Lebanon, Tennessee (opened in 1999) in 2008 and early 2009, respectively. The desktop production plant in Winston-Salem, North Carolina , received US$ 280 million in incentives from the state and opened in 2005 (equivalent to $ 419,900,000 in 2023), but ceased operations in November 2010. Dell's contract with

10792-788: The UTP link goes down. Any combo ports are always the highest 4 standard ports (21-24 on the PCxx24 models and 45–48 on PCxx48 models) Features include 24/48 ports, Layer 3 routing, all-gigabit, fully managed (web+cli), stackable switch with up to 4 10 Gb ports. High availability routing, edge connectivity, traffic aggregation and VOIP applications all supported in the 62xx series. Flexible, high-speed stacking, fiber support and MS NSP Certification included. The 6224 (P and F) and 6248P series switches are end of development: new firmware versions will only repair bugs, no new features are being developed for these switches. While other PowerConnect switches based on Broadcom hardware have firmware versions 4.x,

10934-506: The University of Texas in order to focus full-time on his fledgling business, after getting about $ 1,000 in expansion-capital from his family. As of April 2021, Dell's net worth was estimated to be over $ 50 billion (equivalent to $ 55,470,000,000 in 2023). In 1985, PC's Limited launched its first computer, the "Turbo PC," priced at US$ 795 (equivalent to $ 1,913 in 2023). The Turbo PC featured an Intel 8088-compatible processor with

11076-418: The auto-negotiation mode switch port. A later CDP message with a TLV tells the PSE its final power requirement. A discontinuation of link pulses shuts down power. In 2014, Cisco created another non-standard PoE implementation called Universal Power over Ethernet ( UPOE ). UPOE can use all 4 pairs, after negotiation, to supply up to 60 W. A proprietary high-power development called LTPoE++, using

11218-419: The auxiliary port, with the auxiliary port also sometimes acting as backup power in case PoE-supplied power fails. Advocates of PoE expect PoE to become a global long term DC power cabling standard and replace a multiplicity of individual AC adapters , which cannot be easily centrally managed. Critics of this approach argue that PoE is inherently less efficient than AC power due to the lower voltage, and this

11360-400: The biggest challenge facing Silver Lake would be to find an "exit strategy" to profit from its investment, which would be when the company would hold an IPO to go public again, and one warned "But even if you can get a $ 25bn enterprise value for Dell, it will take years to get out." In May 2013, Michael Dell joined his board in voting for the offer. The following August he reached a deal with

11502-428: The boot code during upgrade. When updating a stack, it is a best practice to individually update the stack members using the update bootcode <unit> command. Letting the unit completely rejoin the stack before updating any other unit is strongly advised, although updating the units individually (not as part of a stack) is always the safest route. Firmware releases are backwards compatible and one can have switches of

11644-423: The bootcode and operational code distributed in one file: one download and (prepare to) activate the newer firmware and with a special command ( update bootcode ) the switch builds the new bootcode from the operational code information. It is always possible to run a newer firmware operational code on a previous bootcode unless specifically noted in the release notes. In this case, the upgrade will automatically update

11786-399: The commoditized PC market—prevented it from making inroads into more lucrative segments, such as MP3 players and later mobile devices. Increasing spending on R&D would have cut into the operating margins that the company emphasized. Dell had done well with a horizontal organization that focused on PCs when the computing industry moved to horizontal mix-and-match layers in the 1980s, but by

11928-464: The company came under an SEC probe for its accounting practices. On April 23, 2008, Dell announced the closure of one of its biggest Canadian call-centers in Kanata, Ontario , terminating approximately 1100 employees, with 500 of those redundancies effective on the spot, and with the official closure of the center scheduled for the summer. The call-center had opened in 2006 after the city of Ottawa won

12070-411: The company issued a preliminary quarterly earnings report showing gross sales of $ 14.4 billion, down 5% year-over-year, and net income of $ 687 million (30 cents per share), down 33%. Net earnings would have declined even more if not for the effects of eliminated employee bonuses, which accounted for six cents per share. NASDAQ extended the company's deadline for filing financials to May 4. Dell announced

12212-444: The company though later, Sony was found responsible for the manufacturing of the batteries, however a Sony spokesman said the problem concerned the combination of the battery with a charger, which was specific to Dell. 2006 marked the first year that Dell's growth was slower than the PC industry as a whole. By the fourth quarter of 2006, Dell lost its title of the largest PC manufacturer to Hewlett Packard whose Personal Systems Group

12354-399: The company was consistently meeting Wall Street earnings targets and reducing its operating expenses." Dell, inc. was fined $ 100 million, with Michael Dell personally fined $ 4 million. After four out of five quarterly earnings reports were below expectations, Rollins resigned as president and CEO on January 31, 2007, and founder Michael Dell assumed the role of CEO again. On March 1, 2007,

12496-430: The company. Michael Dell announced a number of initiatives and plans (part of the "Dell 2.0" initiative) to improve the company's financial performance. These include elimination of 2006 bonuses for employees with some discretionary awards, reduction in the number of managers reporting directly to Michael Dell from 20 to 12, and reduction of " bureaucracy ". Jim Schneider retired as CFO and was replaced by Donald Carty , as

12638-431: The computer hardware manufacturer Alienware in 2006. Dell Inc.'s plan anticipated Alienware continuing to operate independently under its existing management. Alienware expected to benefit from Dell's efficient manufacturing system. In 2005, while earnings and sales continued to rise, sales growth slowed considerably, and the company stock lost 25% of its value that year. By June 2006, the stock traded around US$ 25 which

12780-465: The copper Gigabit ports. They were discontinued. PowerConnect 3524(P) and 3548(P) are managed 10/100 switches with gigabit uplinks and Power over Ethernet options for [applications such as Voice over Internet Protocol (VoIP), denoted on the models denoted with a "P" on the end of the part number. All switches in this family support resilient stacking and have management and security capabilities. The PowerConnect 5200 series of managed switches comprised

12922-624: The corporate PC market, which purchases PCs in upgrade cycles, had largely decided to take a break from buying new systems. The last cycle started around 2002, three or so years after companies started buying PCs ahead of the perceived Y2K problems, and corporate clients were not expected to upgrade again until extensive testing of Microsoft's Windows Vista (expected in early 2007), putting the next upgrade cycle around 2008. Heavily dependent on PCs, Dell had to slash prices to boost sales volumes, while demanding deep cuts from suppliers. Dell had long stuck by its direct sales model. Consumers had become

13064-399: The corporate segment was previously a "moat" against rivals but this has no longer been the case as sales and profits have fallen precipitously. After several weeks of rumors, which started around January 11, 2013, Dell announced on February 5, 2013, that it had struck a $ 24.4 billion (equivalent to $ 31,470,000,000 in 2023) leveraged buyout deal, that would have delisted its shares from

13206-533: The data pairs of 100BASE-TX or 10BASE-T. Mode B delivers power on the spare pairs. 4-pair delivers power on all four pairs. PoE can also be used on 1000BASE-T, 2.5GBASE-T, 5GBASE-T and 10GBASE-T Ethernet, in which case there are no spare pairs and all power is delivered using the phantom technique. Mode A has two alternate configurations (MDI and MDI-X), using the same pairs but with different polarities. In mode A, pins 1 and 2 (pair #2 in T568B wiring) form one side of

13348-409: The dollar as part of the deal. In November, Carl Icahn (9.3% owner of Dell) sued the company over plans to go public. As a result of pressure from Icahn and other activist investors , Dell renegotiated the deal, ultimately offering shareholders about 80% of market value. As part of this deal, Dell once again became a public company, with the original Dell computer business and Dell EMC operating under

13490-425: The ending of about 8,800 jobs in 2007–2008 — 10% of its workforce. By the late 2000s, Dell's "configure to order" approach of manufacturing—delivering individual PCs configured to customer specifications from its US facilities was no longer as efficient or competitive with high-volume Asian contract manufacturers as PCs became powerful low-cost commodities. Dell closed plants that produced desktop computers for

13632-487: The enterprise market with servers, networking, software, and services. It avoided many of the acquisition write-downs and management turnover that plagued its chief rival Hewlett Packard. Despite spending $ 13 billion on acquisitions to diversify its portfolio beyond hardware, the company was unable to convince the market that it could thrive or made the transformation in the post-PC world, as it suffered continued declines in revenue and share price. Dell's market share in

13774-524: The firmware 4.2.0.4 and later available from December 2011, the Powerconnect 8024(-F) and the blade-versions PCM8024-k (thus NOT the discontinued PCM8024) can be stacked. Stacking is done by assigning (multiple) 10 Gb Ethernet ports as stacking ports. Up to six 80xx series switches can be stacked. Note that stacking is not supported using the 10GBASE-T combo ports on PCT8024F. One can mix PCT8024 and PCT8024-F in one stack, but it can't be combined with

13916-511: The first quarter of 2007 after an internal audit found that certain employees had changed corporate account balances to meet quarterly financial targets. In July 2010, the SEC announced charges against several senior Dell executives, including Dell Chairman and CEO Michael Dell, former CEO Kevin Rollins, and former CFO James Schneider, "with failing to disclose material information to investors and using fraudulent accounting to make it falsely appear that

14058-505: The follow-up for the EqualLogic certified 5400 switches, the 5500's never passed the acceptance tests: problems with latency -especially in stacked setups- prevented certification. Although they can work in small EQL (and other iSCSI) SAN networks they should be seen as campus-access switches and not as SAN switches. The PowerConnect 6024 with 24 Gigabit Ethernet over twisted pair ports was announced in early 2004. The PowerConnect 6024F

14200-470: The four pairs in the cable, but also with 1000BASE-T (gigabit Ethernet), 2.5GBASE-T, 5GBASE-T , and 10GBASE-T which use all four pairs for data transmission. This is possible because all versions of Ethernet over twisted pair cable specify differential data transmission over each pair with transformer coupling ; the DC supply and load connections can be made to the transformer center-taps at each end. Each pair thus operates in common mode as one side of

14342-432: The home market and introduced a product line designed especially for individual users. ($ 000000s) employees From 1997 to 2004, Dell steadily grew and it gained market share from competitors even during industry slumps. During the same period, rival PC vendors such as Compaq , Gateway , IBM , Packard Bell , and AST Research struggled and eventually left the market or were bought out. Dell surpassed Compaq to become

14484-497: The industry's average selling price to individuals was going down, Dell's was going up, as second- and third-time computer buyers who wanted powerful computers with multiple features and did not need much technical support were choosing Dell. Dell found an opportunity among PC-savvy individuals who liked the convenience of buying direct, customizing their PC to their means, and having it delivered in days. In early 1997, Dell created an internal sales and marketing group dedicated to serving

14626-413: The introduction of Windows 8 . In the shrinking PC industry, Dell continued to lose market share, as it dropped below Lenovo in 2011 to fall to number three in the world. Dell and fellow American contemporary Hewlett Packard came under pressure from Asian PC manufacturers Lenovo, Asus , and Acer, all of which had lower production costs and were willing to accept lower profit margins. In addition, while

14768-403: The largest PC manufacturer in 1999. Operating costs made up only 10 percent of Dell's $ 35 billion in revenue in 2002 (equivalent to $ 56,680,000,000 in 2023), compared with 21 percent of revenue at Hewlett-Packard, 25 percent at Gateway, and 46 percent at Cisco. In 2002, when Compaq merged with Hewlett-Packard (the fourth-place PC maker), the newly combined Hewlett-Packard took the top spot for

14910-615: The legacy PowerConnect products as well as the Force10 products. The Dell PowerConnect line is marketed for business computer networking . They connect computers and servers in small to medium-sized networks using Ethernet . The brand name was first announced in July 2001, as traditional personal computer sales were declining. By September 2002 Cisco Systems cancelled a reseller agreement with Dell. Previously under storage business general manager Darren Thomas, in September 2010 Dario Zamarian

15052-465: The long run. Margins at retail were thin at best and Dell left the reseller channel in 1994. Rollins would soon join Dell full-time and eventually become the company president and CEO. Originally, Dell did not emphasize the consumer market, due to the higher costs and low profit margins in selling to individuals and households; this changed when the company's Internet site took off in 1996 and 1997. While

15194-667: The main drivers of PC sales in recent years, yet there had a decline in consumers purchasing PCs through the Web or on the phone, as increasing numbers were visiting consumer electronics retail stores to try out the devices first. Dell's rivals in the PC industry, HP, Gateway and Acer , had a long retail presence and so were well poised to take advantage of the consumer shift. The lack of a retail presence stymied Dell's attempts to offer consumer electronics such as flat-panel TVs and MP3 players. Dell responded by experimenting with mall kiosks, plus quasi-retail stores in Texas and New York. Dell had

15336-688: The merger with EMC, which involved the issuance of $ 45.9 billion (equivalent to $ 57,140,000,000 in 2023) in debt and $ 4.4 billion (equivalent to $ 5,478,000,000 in 2023) of common stock. At the time, some analysts claimed that Dell's acquisition of the former Iomega could harm the LenovoEMC partnership. In July 2018, Dell announced intentions to become a publicly traded company again by paying $ 21.7 billion (equivalent to $ 25,940,000,000 in 2023) in both cash and stock to buy back shares from its stake in VMware, offering shareholders roughly 60 cents on

15478-413: The mid-2000 the industry shifted to vertically integrated stacks to deliver an end-to-end IT product, and Dell lagged far behind competitors like Hewlett-Packard and Oracle. Dell's reputation for poor customer service, which was exacerbated as it moved call centers offshore and as its growth outstripped its technical support infrastructure, came under increasing scrutiny on the Web. The original Dell model

15620-456: The network. IEEE 802.3at capable devices are also referred to as Type 2 . An 802.3at PSE may also use LLDP communication to signal 802.3at capability. Class 4 can only be used by IEEE 802.3at (Type 2) devices, requiring valid Class 2 and Mark 2 currents for the power up stages. An 802.3af device presenting a class 4 current is considered non-compliant and, instead, will be treated as a Class 0 device. Link Layer Discovery Protocol (LLDP)

15762-691: The newly created parent, Dell Technologies . Post-acquisition, Dell was re-organized with a new parent company, Dell Technologies; Dell's consumer and workstation businesses are internally referred to as the Dell Client Solutions Group, and is one of the company's three main business divisions alongside Dell EMC and VMware . In January 2021 (equivalent to $ 14,420,000,000 in 2023), Dell reported $ 94 billion (equivalent to $ 104,280,000,000 in 2023) in sales and $ 13 billion operating cash flow during 2020. On March 1, 2024, Dell's stock hit all-time high after earnings. It delivered

15904-457: The power capabilities of 802.3at. It is also known as PoE++ or 4PPoE . The standard introduces two additional power types: up to 51 W delivered power (Type 3) and up to 71.3 W delivered power (Type 4), optionally by using all four pairs for power. Each pair of twisted pairs needs to handle a current of up to 600  mA (Type 3) or 960 mA (Type 4). Additionally, support for 2.5GBASE-T, 5GBASE-T and 10GBASE-T

16046-454: The powered device, injecting power without affecting the data. Endspans are normally used on new installations or when the switch has to be replaced for other reasons (such as moving from 10/100  Mbit/s to 1 Gbit/s), which makes it convenient to add the PoE capability. Midspans are used when there is no desire to replace and configure a new Ethernet switch, and only PoE needs to be added to

16188-561: The rack-switches PCT7000 and PCT8024 series the switch offers an out-of-band Fast Ethernet port for management as well as a serial console connection, required for initial configuration. The switch is built around the Broadcom Trident+ ASIC : the same ASIC as can be found in Cisco Nexus 5000 switches or Force10 models. The PowerConnect 8100 is initially released with firmware 5.0 of the switch-firmware which offers

16330-1024: The range offers standard two 10 Gb SFP+ ports for uplinks to core or distribution layer. All 5500 series models (5524, 5524P, 5548 and 5548P) can be combined in a single stack with up to 8 units per stack. The 5500 series uses standard HDMI cables (specification 1.4 category 2 or better) to stack with a total bandwidth of 40 Gbit/s per switch. The 5500 series are often used as Top Of Rack (TOR) switches and client access switches in wiring cabinets in offices or campus networks. The 5500P series are mainly client access switches connecting VOIP phones and (daisy chained or directly connected) workstations. The -P series are also used to power other devices than phones, such as WiFi access points, IP cameras or thin clients. The 5500 series are stackable to combine several 5500-series switches into one virtual switch. The 5500 series switches are mainly designed to be pure layer 2 switches but it has some very basic layer 3 capabilities. Other standard features are enhanced VOIP support where

16472-528: The same model in one's network running on different firmware levels. Configuration files of older firmware can be used on the newest switches except for some small changes in configuration behavior that was introduced with introduction of firmware 4.0 and later versions. The Broadcom-based multi-layer switches offer a wide range of layer-2 and layer-3 options, and new features are added all the time. Until version 4.2 it wasn't possible to stack multiple 10 Gb switches and converged Ethernet (FCoE) capabilities for

16614-522: The same or similar. The PCT6200 (rack) series continue to run in the major-release number 3: new features or capabilities released in the other switches under firmware 4 or 5 are not available for the PCT6200 series. All other switches that are based on Broadcom hardware run on major release 4 or 5. All Powerconnect switches, including the 8100 series, have both bootcode and operational code where one can run older firmware versions on later bootcode. Bootcode

16756-492: The same type of ports: both the 1G on the front as optional 10G and stacking modules on the rear side. Unlike the 6200 series, firmware for the 7000 series does support new functionality via version 4.x and 5.x like their 10G brothers in the 8024 and 8100 series. A variant with reversible air flow is available for top of rack data center applications. The 6000 series remained on the market. The PCT7000 series also offer an out-of-band management Ethernet interface. One can configure

16898-416: The same wires as data for 10 and 100 Mbit/s Ethernet variants. This is similar to the phantom power technique commonly used for powering condenser microphones. Power is transmitted on the data conductors by applying a common voltage to each pair. Because twisted-pair Ethernet uses differential signaling , this does not interfere with data transmission . The common-mode voltage is easily extracted using

17040-413: The special committee on the board for $ 13.88 per share, a raised price of $ 13.75 plus a special dividend of 13 cents, as well as a change to the voting rules. The $ 13.88 cash offer (plus a $ .08 per share dividend for the third fiscal quarter) was accepted on September 12 and closed on October 30, 2013, ending Dell's 25-year run as a publicly traded company. After the buyout, the newly private Dell offered

17182-477: The specifications in IEEE 802.3af-2003 (which was later incorporated as clause 33 into IEEE 802.3-2005 ) or the 2009 update, IEEE 802.3at. The standards require category 5 cable or better for high power levels but allow using category 3 cable if less power is required. Power is supplied as a common-mode signal over two or more of the differential pairs of wires found in the Ethernet cables and comes from

17324-505: The state provided approximately $ 250 million (equivalent to $ 386,600,000 in 2023) in incentives and tax breaks. In July, Michael Dell stepped aside as chief executive officer while retaining his position as chairman of the board . Kevin Rollins, who had held a number of executive posts at Dell, became the new CEO. Despite no longer holding the CEO title, Dell essentially acted as a de facto co-CEO with Rollins. Under Rollins, Dell purchased

17466-713: The state required them to repay the incentives for failing to meet the conditions, and they sold the North Carolina plant to Herbalife. Much work was transferred to manufacturers in Asia and Mexico, or some of Dell's own factories overseas. On January 8, 2009, Dell announced the closure of its manufacturing plant in Limerick, Ireland, with the loss of 1,900 jobs and the transfer of production to its plant in Łodź in Poland. The release of Apple's iPad tablet computer had

17608-466: The stock of VMware. The proposed acquisition will maintain VMware as a separate company, held via a new tracking stock , while the other parts of EMC will be rolled into Dell. Once the acquisition closes Dell will again publish quarterly financial results, having ceased these on going private in 2013. The combined business was expected to address the markets for scale-out architecture , converged infrastructure and private cloud computing , playing to

17750-485: The strengths of both EMC and Dell. Commentators have questioned the deal, with FBR Capital Markets saying that though it makes a "ton of sense" for Dell, it's a "nightmare scenario that would lack strategic synergies" for EMC. Fortune said there was a lot for Dell to like in EMC's portfolio, but "does it all add up enough to justify tens of billions of dollars for the entire package? Probably not." The Register reported

17892-414: The switch automatically recognizes connected VOIP devices and configure VOIP quality of service and a VOIP-VLAN. This feature will only work optimally in small VOIP networks. There is also iSCSI optimization and auto-configuration, though Dell does not support them with their EqualLogic family of storage arrays. The switch also supports IEEE 802.1X (Dot1x) port authentication. Although they were meant as

18034-567: The switch to allow both in-band as out-of-band management. By default the oob interface allows management per webgui ( http ) and telnet, but also https and ssh can be enabled on both in-band as out-of-band management. The PCT7000 series can be stacked with other PCT7000's but also with the PCM6348 blade switch The PowerConnect 8024 and 8024F were rack-mounted switches offering 10 Gigabit Ethernet on copper or optical fiber using enhanced small form-factor pluggable transceiver (SFP+) modules on

18176-458: The third and fourth fiscal quarter of 2006, and several class-action lawsuits were filed. Dell Inc's failure to file its quarterly earnings report could have subjected the company to de-listing from the Nasdaq , but the exchange granted Dell a waiver, allowing the stock to trade normally. In August 2007, the company announced that it would restate its earnings for fiscal years 2003 through 2006 and

18318-506: The two-pair or four-pair standards, the same power voltage is applied to each conductor of the pair, so that within each pair there is no differential voltage other than that representing the transmitted data. With single-pair Ethernet, power is transmitted in parallel to the data. PoDL initially defined ten power classes, ranging from 0.5 to 50 W (at PD). Subsequently, PoDL was added to the single-pair variants 10BASE-T1 , 2.5GBASE-T1, 5GBASE-T1 , and 10GBASE-T1 and as of 2021 includes

18460-808: The un-managed mode). The Web GUI uses by default HTTP on port 80, but one can configure them to support HTTPS and/or change the HTTP port-number. For the CLI one can use the serial console cable and -for the M series blade switches- a virtual console via the CMC. Dell Dell Inc. is an American technology company that develops, sells, repairs, and supports personal computers (PCs), servers , data storage devices , network switches , software , computer peripherals including printers and webcams among other products and services. Based in Round Rock, Texas , Dell

18602-487: The view of William Blair & Company that the merger would "blow up the current IT chess board", forcing other IT infrastructure vendors to restructure to achieve scale and vertical integration. The value of VMware stock fell 10% after the announcement, valuing the deal at around $ 63–64bn rather than the $ 67bn originally reported. Key investors backing the deal besides Dell were Singapore's Temasek Holdings and Silver Lake Partners . On September 7, 2016, Dell completed

18744-478: The world's 500 largest companies, making Michael Dell the youngest CEO of a Fortune 500 company at that time. In 1993, to complement its own direct sales channel, Dell planned to sell PCs at big-box retail outlets such as Wal-Mart , which would have brought in an additional $ 125 million (equivalent to $ 238,100,000 in 2023) in annual revenue. Bain consultant Kevin Rollins persuaded Michael Dell to pull out of these deals, believing they would be money losers in

18886-566: Was 40% down from July 2005—the high-water mark of the company in the post-dotcom era. By June 2021, the stock had reached an all-time high of over US$ 100 per share, reflecting the company's successful transition to a technology solutions provider that helps customers navigate digital transformation. The slowing sales growth has been attributed to the maturing PC market, which constituted 66% of Dell's sales, and analysts suggested that Dell needed to make inroads into non-PC business segments such as storage, services, and servers. Dell's price advantage

19028-565: Was a 24 port, layer 3, all-Gigabit, fiber-optimized switch. It had 24 SFP ports, eight of which doubled as copper ports. This switch was capable of routing , with static routes, Routing Information Protocol (RIP), and Open Shortest Path First (OSPF). It was replaced by the PowerConnect 6224/6248 models. The 6224 and 6248 switch was introduced in early 2007 as the logical follow-up of the 6024 switch. It had 24 (6224) or 48 (6248) Gigabit Ethernet ports and two sockets for 10 Gigabit Ethernet modules (with two ports per module) or stacking. Many of

19170-410: Was a pure hardware vendor until 2009 when it acquired Perot Systems . Dell then entered the market for IT services. The company has expanded storage and networking systems. In the late 2000s, it began expanding from offering computers only to delivering a range of technology for enterprise customers. Dell is a subsidiary of Dell Technologies, Inc., a publicly traded company , as well as a component of

19312-785: Was being pressured by Elliott Management , a hedge fund holding 2.2% of EMC's stock, to reorganize their unusual "Federation" structure, in which EMC's divisions were effectively being run as independent companies. Elliott argued this structure deeply undervalued EMC's core "EMC II" data storage business, and that increasing competition between EMC II and VMware products was confusing the market and hindering both companies. The Wall Street Journal estimated that in 2014 Dell had revenue of $ 27.3 billion (equivalent to $ 34,610,000,000 in 2023) from personal computers and $ 8.9 billion from servers, while EMC had $ 16.5 billion from EMC II, $ 1 billion from RSA Security , $ 6 billion from VMware, and $ 230 million from Pivotal Software . EMC owns around 80 percent of

19454-431: Was discontinued. The PowerConnect 5324 was a 24 port, all-Gigabit, fully managed switch. The last 4 ports are SFP capable. Generally very similar to the 3400 series. It was discontinued. The PowerConnect 5400 series reached 'end of sales' in 2011 and are followed up with the 5500 series. Many features of the 5400 are now available on the 5500 series, but where the 5400 were certified for use with EqualLogic iSCSI arrays,

19596-614: Was getting trapped in the increasing commoditization of high volume low margin computers, which prevented it from offering more exciting devices that consumers demanded. Despite plans of expanding into other global regions and product segments, Dell was heavily dependent on US corporate PC market, as desktop PCs sold to both commercial and corporate customers accounted for 32 percent of its revenue, 85 percent of its revenue comes from businesses, and 64 percent of its revenue comes from North and South America, according to its 2006 third-quarter results. US shipments of desktop PCs were shrinking, and

19738-607: Was invigorated thanks to a restructuring initiated by their CEO Mark Hurd . In August 2005, Dell became the subject of an informal investigation by the United States SEC . In 2006, the company disclosed that the US Attorney for the Southern District of New York had subpoenaed documents related to the company's financial reporting dating back to 2002. The company delayed filing financial reports for

19880-534: Was known for high customer satisfaction when PCs sold for thousands of dollars but by the 2000s, the company could not justify that level of service when computers in the same line-up sold for hundreds of dollars. Rollins responded by shifting Dick Hunter from the head of manufacturing to head of customer service. Hunter, who noted that Dell's DNA of cost-cutting "got in the way," aimed to reduce call transfer times and have call center representatives resolve inquiries in one call. By 2006, Dell had spent $ 100 million in just

20022-469: Was named to head networking platforms within Dell. PowerConnect switches are available in pre-configured web-managed models as well as more expensive managed models. As of 2013 there is not a single underlying operating system: the models with a product number up to 5500 run on a proprietary OS made by Marvell while the Broadcom powered switches run on an OS based on VxWorks . With the introduction of

20164-509: Was tied to its ultra-lean manufacturing for desktop PCs, but this became less important as savings became harder to find inside the company's supply chain, and as competitors such as Hewlett-Packard and Acer made their PC manufacturing operations more efficient to match Dell, weakening Dell's traditional price differentiation. Throughout the entire PC industry, declines in prices along with commensurate increases in performance meant that Dell had fewer opportunities to upsell to their customers. As

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