Embedded and moving the wind river of application software manufacturer Wind River Claim to put out the whole system emulation tool Simics 4.6 of redaction today, the function characteristic through the artificial goal hardware, let developer come, carry on research and development, debug and test job of electronic system with brand-new thinking and method, and no matter the large-scale even network electronic system of single processor or high complexity is totally applicable. The latest edition Simics released this time is offered the debugging ability of application software of systems of multiplate clamping of support, having strengthened the function that the project group develops and debugs in coordination, in addition newly-increased ones that direct against the hardware system of the goal are visual Visualization And monitor Surveillance Function.
In recent years, the complexity of the electronic system is nearly increasing at the rate of geometric progression, the increasingly many systems all include many kinds of isomerism Heterogeneous Processor and polykaryon processor, operate multiple software protocol stack and operating system at the same time. More severe, these complicated electronic systems are usually still only a part of a certain large-scale networking system, also pass local bus, framework, local area network or Internet,etc. and large-scale network system link. Because these all linked with one another electronic system complexity and even forming increase by a wide margin, if still adopt traditional developing instrument and mode of operation to carry on intact design debugging, system integration and testing the homework to these systems, the deadlock that will often make the developer fall into and is too tired to deal with, will give a great discount too in operating efficiency.
Wind River Simics has broken the traditional embedded product development fixed mode, can offer the general development environment for an intact system, even if this system is formed by many kinds of different hardware plate cards, and adopted different processors and operating systems. It is one of platforms fictitiouses, the platforms fictitious in fact development environment in what has been offered Simics can emulation their hardwares actuals correspondentses complete. As the developer operates the unnecessary modified goal software on this fictitious platform, such as the firmware Firmware , operating system, middleware Middleware At the application software, can obtain like run these goal the intersection of software and uniform result at actual hardware.
Main function and characteristic of Simics 4.6 of the new edition are sketched as follows:
l Further expand its unique the whole system simulation ability, debug the function in including integration Eclipse true code. This new function has fully utilized the opposite direction of Simics to carry out Reverse Execution And the perception of the operating system, can include system level and advanced application.
l The event group of ruggedization in coordination with the homework function, can let group members share intact electronic system content and all states together, not only help to promote operating efficiency, can also accelerate development and test duration of the software. In addition brand-new to strengthen function, still can live in geographic location and their duty speciality in coordination with homework according to group members, the division basis of dividing into groups as the task, have efficiency in carrying out actually even more in coordination with the homework.
l The ones that support to direct against the hardware system of the goal are visual Visualization With monitoringSurveillance Function. The Video Out allowed to customize, can use Israel Virtual The way presents terminal system interface and visual running status, can thus understand the key function of every system easily, also can early one let terminal user go ahead, know future actual the intersection of hardware and one kind of lookses of system. To developer, this function contributes to controlling and knowing behaviors of various fields of the goal software.
l Can support to operate various goal software, including any commercial operating system, or any set of closing type operating systems researched and developed by manufacturer. So long as the mark software that can be operated as the artificial target’s real hardware is fitted, can run and not have a bit difference on Simics fictitious platform too.
l Can support the key framework of diversified hardwares, such as ARM of the mainstream, Intel, MIPS and Power Architecture framework on the market.
Wind River Simics products tactics and marketing executive vice president Michel Genard are represented: “Wind River Simics has solved the most complicated part in the development process of traditional embedded application, and offer intact support, including system definition and even subsequent products support service from the beginning to the life cycle of the products. The strong function of Simics can assist developers to improve the development, debugging of the electronic system and test the homework, and then accelerate the listing time course of the products, reduce the whole cost and guarantee the quality of the end product reaches the best level, promote the commercial competitiveness of the company on the market effectively. ”
Constant improvement of the storage requirement, requiring more, increasing the network length, width, scale and density constantly to computational capability of explosive increasing, user of digital content led in Internet, these bring the severe challenge to memory management together. Network attached storage NAS Technology, seeing that it can solve the all above-mentioned problems, becomes people’s focus. Network attached storage is a kind of memory framework, can bring economic, extensible sum but solution of management to data demand for improving constantly to enterprises.
NAS is that one kind can let the host computer system connected share the machine format network memory technology. Because NAS apparatus had a lot of advantages, NAS apparatus obtained extensive prevalence within short time. As enterprises begin one’s own enterprise network framework of the modernization, in addition, competitive pressure with the intersection of enterprise and viability in order to keep ‘ For example agility and flexibility on the market changing fast ,And store the LAN SAN like network attached storage Such technology has broad development space. Economic depression of situation force enterprise come on the intersection of staging and own the intersection of memory and the intersection of local area network and framework with economic and effective place type further. NAS technology has several advantages, including the increase of availability of data, improvement, optimization, terminal user’s transmittance, independence of the cheap and platform of the convenient, installs and maintenance cost of arrangement of access to data of the server characteristic.
The market of additional storage equipment of the network is influenced by economic depression unavoidably too, but this market is still very resilient. Economic recession force Network Operator and the intersection of network equipment and investment expenditure that manufacturer reduce 2009 with should maintain the equilibrium of asset-liabilities and to the intersection of financing and weakness of market. The economic recession still causes enterprises and the consumer confidence to fall. The shrinking of income and asset value causes reduction and postponement of the storage equipment expenses of network on the market. The purchase cycle that the intension of the budget still results in storing the solution lengthens, delay that the delay that the memory technology adopts and NAS apparatus of future generation introduce. Of future generation the intersection of NAS and apparatus can store, utilize and reduce to have cost always user optimally. Similarly, because the employment situation is unstable, consumer’s colleague, to storing and consuming and taking the prudent attitude. Because the fund is limited, the potential buyer is unwilling to buy the new outside to store the solution.
It is too depressing that system upgrade replaces the market. Staging that consumers incline to go when there are more urgent reasons, or looks forward to the further drop of the price. Though the economic recession has tied down NAS market temporarily, NAS market expects to take off again soon. This is mainly because the cost is saved and the expenses is frozen usually users are facing the instinct when the economic situation worsen and reacting, but this kind of state will not continue to store the trade for a long time. Even under the abominable economic situation, the big enterprise requires persistent investment, because data storage has already become a key constituent element of enterprises IT. Enterprises will often visit bull shared data, including staff’s database, stock and consumer’s record.
According to this new market investigation report, Europe and North America are a staple market of NAS apparatuses. Market growth rate of emerging nation too very considerable, though because NAS lower seeming base figure to be relatively little in market penetration factor. With the improvement of careers market and economic prospect, market of NAS apparatus in 2011 is recovering. Divide according to subdividing the market, the market of additional storage equipment of the enterprise layer network is NAS market of the maximum. From now to 2017, the global market income of the department type market of network surtax storage equipment will be expected 15.9% of the speeds will be increased progressively with every year.
The leading firm on the global market includes BlueArc Corporation, Buffalo Inc., Dell, EMC Corporation, Isilon Systems, Hewlett-Packard, interconnected system of Hitachi data, IBM, LSI Corporation, NetApp Inc., NetGear Inc., Overland Storage Inc., Panasas Inc., Pillar Data Systems, SGI Corporation,etc..
The title of this research report is <>. It is Global Industry Analysts Inc. to report to the author. This is trend, issue of market of a generalized analysis, promote some, company’s situation, annexing purchasing and other strategic companies that moved about while engaging in. This report has offered the market of the staple market to estimate and predict ‘ In term of a million dollars ,Cover North America, Europe, inferior global other areas of Tai Wo. Subdivide the market including enterprise layer, department and work group.
With the development of video technique of the network, POE products being favored by the market day by day, this text is directed primarily to POE technology, what is POE, application and function characteristic of POE for a detailed introduction that give to everybody, believe that has seen it will be helpful to you that this is gentle.
Accompanied by WLAN, VoIP, video of the network the development at full speed of the new developing business of controlling etc., PoE products rely on it to be simple and easy to do and reducing routing cost, abundant network application co dominant in the course of networking, favored by the market day by day. Especially direct the intersection of operator and the whole the intersection of business and run and the intersection of network and the intersection of IP and the intersection of networking and demand transformation bring against, China many of enterprise introduce, can realize long-range PoE series the intersection of Ethernet and switchboard of power supply one after another, in order to realize the high-efficient arrangement of the operator.
PoE Power over Ethernet, Ethernet supplies power Mean in a situation that the basic framework of Off-The-Shelf Ethernet Cat.5 routing is not changed, in have terminal station based on more IP by some ‘ For instance IP telephone set, access point AP of Wireless Local Area Network, camera of the network,etc. While transmitting the intelligence signal, still can offer the technology of D. C. supply for this kind of apparatus.
In June of 2003, IEEE released standard of supplying power of PoE Ethernet of 802.3af formally, it stipulated clearly the electricity in the long-range system measured and controlled the item, and the way to supply power to apparatuses such as IP Phone, security system and wireless LAN access point,etc. to the router, switchboard and line concentrator through Ethernet cable has paid stipulating. We can say canonial issue this, technical to employ clearing away the obstacle on a large scale for PoE.
No doubt, it is a great criterion that the operator networks to save the cost. This kind carries on the long-range PoE technology that supplies power to the network equipment connected on standard Ethernet data cable, can guarantee the normal operation of the existing network while guaranteeing routing of existing structuring’s security, reduce routing and handling cost which disposes the terminal installation greatly, thus is widely favored by the operator.
PoE supplies power
PoE technology has solved the problem that the last network equipment needed a power line and a mesh wire at least, can offer network insertion and electricity supply at the same time through a mesh wire, while greatly the reduced network is disposed, have further expanded the arrangement range of the network equipment. Numerous suppliers in the industry including Cisco System Co. think, PoE technical importance lies in, as the Intelligent device is moved to the edge of the network gradually, PoE will be that this kind of apparatus obtain the route of simple economy most of the electricity supply.
According to the introduction of technician of China’s major network equipment trader’s beacon network, among actual operational process, one intact the intersection of PoE and system include, supply power the intersection of end and apparatus PSE, Power Sourcing Equipment And receiving end apparatus PD, Power Device Two parts.
Among them, PSE apparatus is the apparatus supplying power for apparatus of customer end of Ethernet, it is a administrative supervisor of the course of supplying power of the whole POE Ethernet at the same time. And PD apparatus accepts PSE supplying power is supported, namely the customer end apparatus of POE system, such as IP Phone, online security camera, AP and palmtop computer PDA Or a lot of other Ethernet apparatuses such as cellular telephone charger. The two establish the information connection in respects such as the connections, device type, power consumption rank about apparatus PD of receiving end,etc. on the basis of IEEE 802.3af standard, and take this as a foundation PSE supplies power to PD through Ethernet.
The insider still points out, except PoE technology can make the relevant apparatus not need local power supply, can different types of network more from equipment integration to unitary the intersection of public network and China and foreign countries, the more important thing is PoE has represented the really unitary mains voltage interface standard of the whole world, make numerous apparatus manufacturers can be based on seeking unity of standard to research and develop, has guaranteed the compatibility, expansibility of the products.
Scene application of PoE Ethernet
Because its apt to install, easy of management, simple and convenient, safety, stability, expansibility and profit old principle of PoE skill, in fields such as employing, wireless networking, safe protection, BLDG managing, retailing, amusing and RFID of family,etc., have huge application prospect.
On 2009 International Communication Exhibition, the beacon network will exhibit the switchboard F-engine S3928-PAF which supports PoE to the outside. It is reported, this switchboard mainly orientates as access of AP, IPPhone, IPCamera,etc. and employs the scene. Except possessing the advantage of traditional Ethernet switchboard, the standard and standard of supplying power of IEEE802.3at circuit that F-engine S3928-PAF supports to supply power in IEEE802.3af circuit, can supply power to the network equipment which exceed 15.4W power, well meet users’ power supply demand newly. The application scene of this kind of apparatus is as follows:
Beacon network F-engine S3928-PAFPoE apparatus itself already integrated data transmission and function of the power supply, can play and connect PD apparatus directly. Its far-end can be that various require the big one to power on the basis of IP, terminal installation to accord with 802.3af standard, 802.3at draft.
Meanwhile, it is transmitted rapidly completely, support POE, QINQ, VLAN that the F-engine S2200ME-PAF series switchboard of the beacon network is achievable, have functions such as strong ACL, multicasting and QOS,etc., can offer the powerful GUI network management system visual in image, support the colonial network management, various satisfiable occasions make the demand for network insertion of broadband.
The intersection of PoE and technology that incorporate network insertion and power supply into an organic whole, through bear the weight of the intersection of Ethernet and machine format the same pieces of five / exceed, offer the reliable direct current power supply by 5 kinds of twisted pair cables at present, it expands Ethernet to be already very strong function, in play, save cost, abundant important function of application dispose, while being outdoor it originally.
Emulex The company announced a few days ago, it OneConnect Common to get the network adapter UCNA together With OneCommand Manager begins to be listed in an all-round way through Emulex distribution channel.
OneConnect UCNA of Emulex offer increasing paying functioning unique, only section can transmission control protocol / the intersection of Internet and agreement , Internet’s small-scale computer system interface iSCSI With Fibre Channel over Ethernet FCoE Offer the overall hardware agreement to unload the server adapter of the function. OneConnect UCNA can offer the quickest 10Gb/s Ethernet performance in the world, can combine the network and store the basic framework high-efficiently, do not need to change and manage the land.
” The network of Emulex merges the scheme and regards server as the centre, this means we can use single framework and product series, realize the server sum Virtual Transition to 10Gb/s Ethernet. Emulex has offered a whole set of I/O products based on Ethernet for server. These products are directed against Local Area Network LAN on Motherboard LOM , blade and standard PCI Express adapter employs paying optimizing, and is not limited to storing the agreement, ” The chief marketing tube and concurrently business development senior vice-president Steve Daheb of Emulex Company say. ” Emulex is leading and promoting the transition to 10Gb/s Ethernet server. We a unique one increase pay mode offer one basic the intersection of 10Gb/s and the intersection of Ethernet and adapter to user and face iSCSI and the intersection of FCoE and whom hardware accelerate escalate clothes live The affair, help them to expand the basic framework, realizing unparalleled investment is protected and virtual server performance easily. ”
Emulex OneConnect UCNA is the high-performance 10Gbps Ethernet products platform of the chip of a form, it and stores the flow to offer the server connection to the network through the multi-functional server adapter. Emulex OneConnect series include the high-performance 10Gb/s Ethernet adapter OCe10102-N , 10Gb/s iSCSI adapter OCe10102-I Get the network adapter OCe10102-F together with 10Gb/s FCoE . Emulex OneConnect adapter supports the overall TCP/IP hardware including TCP Chimney to unload, and when the end user does a good job of the network and merges preparation, can add the hardware to unload the function for iSCSI or FCoE.
And get the network adapter together with similar other 10Gb/s network adapters differently, OneConnect UCNA framework of Emulex allows the end user to buy the basic 10Gb/s Ethernet adapter. This adapter including TCP/IP and TCP Chimney hardware was unloaded, performance has exceeded any other 10Gb/s network adapters sold on the market at present, can offer the overall hardware for iSCSI or FcoE and unload the function at the same time. As Emulex vEngine? A part of technology, the hardware unloads and accelerates the function and reduces the server expenses, increase the quantity of virtual machine that can run on the virtual server at the same time.
Emulex OneConnect UCNA framework allows IT administrator to merge their physical network, maintains their application, server, store and the safety management land at the same time. In this way, the company can reduce adapter, exchanger port, connects up, power and cooling the cost, needn’t cut off the intersection of they and present managerial structure or network, segment disposition.
With the issue of OneConnect UCNA, Emulex has offered a kind of new integration to manage application, namely OneCommand Manager, the ones that to replace Emulex been HBAnyware of praise ago? Manage application. Does OneCommand Manager offer Emulex OneConnect UCNA and LightPulse correctly in one that concentrate on across the frame of the platform? Optic fibre passway host computer bus adapter HBA Overall manage. It includes strong diagnostic tools by OneCommand Manager to be and can customized report function, can help administrator, centre of data, optimize the intersection of SAN and performance and usability.
Though a lot of managers of Wireless Local Area Network pay close attention to the fact in problem solving and avoid the safe loophole, but the characteristic of Wireless Local Area Network optimizes and pays attention to the task list even more. Whether this method can not not merely consider thoroughly, and ignore and optimize or cause another factor of the disaster. If each AP only needs to support the flowrate of Net surfing of about ten users, the general characteristic can be accepted, but when AP is close to the heaped capacity and the utility program demand becomes higher, the bandwidth is consumed and the bottleneck will become very serious.
In order to realize the characteristic of Wireless Local Area Network is optimized, network manager and controller must use the new Wireless Local Area Network measuring and testing tool, they can check the network performance according to utility program type of running in the network. Looking for the tool will force the network administrator to look for more innovative products not including present supplier and test method. Because these tools may be very expensive, their price may be several times higher.
Why need better Wireless Local Area Network performance test and network design?
The Er early Wireless Local Area Network is usually according to empirical design, namely adopt circumference of coverage of one AP to show, among them the radius represents minimum signal intensity. Then use, stand spot scanning come, draw actual signal intensity, and with passive scan Or take the initiative ‘ Related Method about measurement. The tool used for carrying out and scanning is manual and labour-intensive; For example have a method require test clerk in carry on two measurement come on, collect passive initiative measuring result on the spot.
Obviously, these methods can’t well go on on bigger Wireless Local Area Network. More important, they can not reflect 802.11n and all kinds of increasingly many reliance actual function of high bandwidth and low delayed utility program. By using 802.11n, the transmission rate of different directions can be controlled, and the signal is strong might not be that one of the characteristic of the utility program can accept the index.
Gaugeable utility program demand of survey tool of the characteristic of Wireless Local Area Network
This is exactly the place where the new characteristic survey tool specially designed for 802.11n and important mobile service utility program can play a great role. For example, AirMagnet Survey not merely measures up run and link performance of descenting with iPerf, and it can be used for analyzing to offer 802.11n to recommend setting up and the fast pronunciation is assessed.
Veriwave WaveDeploy one comments on and estimates tools the acting station, it can produce test and flow, the hair reaches not only can measure TCP throughput, but also can measure ” experience quality ” of Web, pronunciation and video after the true customer end apparatus . An apparatus to adopt WaveDeploy of Pass The Test, the tester can produce the cover of the area that meet the requirement of the utility program to pursue. This is by measurement index for example, MOS and sound shake of each utility program Determination.