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"); PageUserservice.findalluser (Domain.getdomainid (), name, page, pageSize); Simplefilterprovider SFP=NewSimplefilterprovider (); Sfp.addfilter ("Userfilter", Simplebeanpropertyfilter.serializeallexcept ("Rechargerecords")); String JSON=Jacksonutil.objtojson (list, SFP); WriteString (JSON, RES); }View Code@Override PublicPageLongDomainid, String name,intPageintpageSize) {String hql=NULL
Multipath implements LUN device name persistence. I. Additional knowledge based on different transmission protocols, the network card can be divided into three types: an Ethernet card, an FC network card, and an iSCSI network card. (1) Ethernet Adapter: an Ethernet Adapter. The transmission protocol is an IP protocol. It is generally connected to an Ethernet switch through an optical fiber cable or twisted pair. Interfaces can be divided into optical ports and electrical ports. Optical interface
Today there are user Cisco 3850 Insert multimode Gigabit module after error log as follows:*oct 13:48:54:%platform_pm-6-module_errdisable:the inserted SFP MODULE with interface name GI1/0/18 was not suppor Ted*OCT 13:48:54:%pm-4-err_disable:gbic-invalid error detected on GI1/0/18, putting GI1/0/18 in err-disable state*oct 13:48:56:%LINK-3-UPDOWN:INTERFACEGIGABITETHERNET1/0/18, changed state-to-downCisco official website to view the document after proc
Today in the Webmaster station to see a netizen to write the photo album program, the function is quite simple, see he used the aspjpeg to generate thumbnails, not to recall using aspupload upload, so spent one hours to perfect his code. The following code has a simple comment, if you do not understand, please look at AspJpeg and AspUpload documentation (E, hope to have psychological preparation), can not understand the ask me. Here's the code: Copy Code code as follows: If sessio
H3C S5500-28c-ei H3C: Manufacturer Brand s represents the switch, if the SR represents the business router The first 5 represents the gigabit switch, if 3 represents the gigabit uplink, the hundred trillion downlink. If 7 represents a high-end box switch. 9 represents the core box-type switch The second 5 represents a three-tier exchange or a two layer, greater than or equal to 5 is a routing switch, and less than 5 is a two-tier switch 00 is to distinguish the same category of multiple ser
.), or with other network devices (storage devices, servers, workstations, etc.) to connect , thus forming a network of hardware devices. So, the fiber-optic network card is the name in the end is the fiber port HBA card? In fact, the fiber-optic network card that you often refer to is the HBA card in the Fibre Channel networks. Because of the different transmission protocol, the network card can be divided into three kinds, one is Ethernet cards, the other is FC network card, the third is iS
fault phenomenon cannot clearly determine whether it is a software fault or a hardware fault, and there is no comparable device for reference. Therefore, the comparison method and replacement method cannot be used, and only the exclusion method can be used for troubleshooting. Because the fault is related to the call and has nothing to do with the user and does not affect other calls of the user, the user circuit and switching system factors can be ruled out. However, according to the call proc
through specific software. Next, let's take a look at the router's LAN and WAN connection ports.1. LAN interfaceAccording to the interface name, we can see that these interfaces are mainly used to connect routers and LAN, because the LAN type is also diverse, therefore, the LAN interface type of the router may be diverse. Different networks have different interface types. Common Ethernet interfaces include AUI, BNC and RJ-45 interfaces, as well as FDDI, ATM and optical fiber interfaces, the fol
the coarse coaxial cable. It is a "D" Type 15-pin interface, this is one of the most common ports in the ring or bus network. The router can connect to the 10Base-5 network through a coarse coaxial cable transceiver. But more is the use of external transceiver AUI-to-RJ-45), to achieve the connection with the 10Base-T Ethernet. Of course, you can also use other types of
signals for transmission in optical fiber. It uses optical fiber transmission devices mainly for video optical terminals and optical fiber transceiver. The video optical transceiver is mainly used for analog camera signal transmission. It has low signal loss, low noise and distortion, and high transmission quality, suitable for long-distance transmission. Fiber optic t
first out queue) FISC (fast Instruction Set Computer, fast Instruction Set Computer) Flip-chip (chip reversal) Flops (floating point operations per second, floating point operation/second) FMT (fine-grained multithreading, pure multi-thread elimination) Fmul (floationg point multiplication, floating point multiplication) Fprs (floating-point registers, floating point register) FPU (Float Point Unit) Fsub (floationg point subtraction, floating point subtraction) GfD (Gold finger device, Gold fin
Chapter 3 LAN principlesLAN technology mainly corresponds to the physical layer and data link layer of the OSI reference model, that is, the network interface layer of the TCP/IP model. The physical layer of a LAN specifies the physical and electrical properties, mechanical properties, and connection labels of devices, cables, and interfaces that provide services to the LAN. Common such standards include: For 10BASE5 coaxial coarse cable and transceiver
Debug fiber Interface interface with FPGA:Due to the needs of the project, the previous period of time debugging the optical fiber interface, recording some design experience.In the design, FPGA is used to control optical fiber module to complete the transmission of optical fiber data, FPGA uses Xilinx company's Spartan6 lx45t, because of its internal 2 GTP transceiver, can be used as a variety of communication protocol (Gigabit Ethernet, Pci-e,sata,
protocol stack send function, to achieve data wireless transmission③ Receive: Receive node calls the protocol stack wireless receive function, realizes the wireless data receivesSince the protocol stack encapsulates these functions, it is convenient for us to use them. Here is the protocol stack wireless send function:A better application of the protocol stack requires a detailed understanding of the specific role and significance of these functions and their parameters provided by the protocol
are no special application requirements, it is advisable to select the device in these two companies.Hardware Resources for 5.1.2 devicesHardware resources are important criteria for device selection. Hardware resources include logical resources, I/O resources, cabling resources, DSP resources, memory resources, phase-locked loop resources, serial transceiver resources, and hard-core microprocessor resources.The need for logical resources and I/O res
number of tasks of Integrated Wiring. However, twisted pair wires have weak anti-aging capabilities, and only one image can be transmitted at a time. Therefore, it is suitable for video surveillance of network cameras in medium and short distances, with relatively scattered camera points, or with relatively close but concentrated points, such as banks, hotel chains, supermarkets, or university campuses. Optical fiber.Optical Fiber Transmission has the following advantages: long transmission dis
parabolic surface, so that the antenna is located in the parabolic surface of the internal reflection focus, through the electromagnetic waves reflected in the focus of the formation of energy concentration, thereby enhancing the electromagnetic signal transceiver, To achieve enhanced signal in a specific direction. The key to making a simple gain antenna is to find a more regular metal parabolic surface and compute the focus position of the parabo
direction, and if any network segment are severed, all network transmission ceases. A host on a bus network is called a station or workstation. In a bus network, every station receives all network traffic (traffic), and the traffic generated by each station have equal Tran Smission priority. Each network segment is, therefore, a collision domain. In order for nodes to transmit on the same cable simultaneously (simultaneous), they use a media access control technology such as car
multicast distribution service, is a broadband point-to-point access system that can access voice, data and video services. LMDS system using millimeter wave transmission, working in the 20-40ghz band, can provide up to 155.52Mbps user access rate, known as a "Wireless optical fiber" access system. In addition, the LMDS system supports all major voice and data transmission standards, such as ATM, TCP/IP, and MPEG-2.The *LMDS system adopts a kind of honeycomb structure configuration, by which on
Vro interfaces are very important for network connection and routing functions. Here we will give a comprehensive explanation of vro interfaces and connection knowledge. A vro has powerful network connection and routing functions. It can be physically connected to a variety of different networks, which makes the router interface technology very complex, the more high-end router interfaces there are, the more network types it can connect. Vro ports include LAN ports, WAN ports, and configuration
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