dte dce

I. composition principle, exchange method and applicability of data communication　　 1. Principles of data communication　　 DTE is a data terminal.Data terminals are divided into two categories: group-type terminals (PT) and non-group-type terminals (treaty. Group terminals include computers, digital fax machines, smart user telegraph terminals (teletex), user group device (PAD), user group switch, and dedicated telephone switch (PABX) various dedicated

Basic Frame Relay Configuration: Target: Basic Frame Relay Configuration Lab device: Router with serial port) 2 V.35 cable DTE/DCE) 1 pair Tutorial principle: The frame relay standard can be configured and managed permanent virtual circuit PVC in the frame relay network) for addressing, and the frame relay permanent virtual circuit is identified by the data link connection identifier DLCI. When frame rel

In hostswap dcevm, we have a simple understanding of dynamic code evolution VM.ArticleThe implementation principle of dynamic code evolution VM is introduced. There are two concepts that need to be different: Dynamic code evolution (hereinafter referred to as DCE): generally refers to Java modification at runtimeProgramSuch as AOP. Dynamic code evolution VM (hereinafter referred to as dce vm) i

Build a test environment1: CREATE TABLECREATE TABLE tab_index (id int (5), age int (3), DTE datetime);2: Inserting test dataINSERT into Tab_indexvalues (1, ' 2012-05-13 ', +), insert into tab_indexvalues (2, ' 2012-05-13 ', +); INSERT INTO Tab_ Indexvalues (3, ' 2012-05-13 ', +), insert into Tab_indexvalues (4, ' 2012-05-13 ', +); insert into Tab_indexvalues (5, ' 2012-05-13 ', "," INSERT into tab_indexvalues (6, ' 2012-06-13 ', "); insert into tab_in

supports custom extensions.2. Jump to the head or tail of the methodThis function seems useless, but when a method has hundreds of rows, or even thousands of lines, how to quickly jump to the beginning or end of the method is more troublesome.Figure 1 Final Effect animation demo (click to enlarge to view)Reading this article, you need to know the following knowledge points:1. MVVM and WPF--hurry to get to know (this article lying on their website, did not have time to sync to the blog park, we

) #exit #退出接口配置模式Router (config) #exit # exit Global moderouter#disable# Exit Privileged ModeRouter>Configuring the Router serial interfaceThe serial interface is used to reach the router at the remote site or ISP over a WAN connection.Router>enableRouter#config TRouter (config) #interface serial 2/0Router (config-if) #ip address 192.168.20.100 255.255.255.0Router (config-if) #clock rate 56000# If the DCE cable is connected, set the clock frequency, o

The Site to Site VPN settings for vro Setup detailed Frame Relay configuration first describes that frame relay generally rents ISP services. The above configurations are all configured by China Telecom for you. what you get is the two DLCI values in the blue font, used to identify the line of Frame Relay. if you really want to do it on your own, it's as if I have written the red font that must be in front of it. then the blue part must also be in order! Because the input of the last sentence m

Sometimes, when the distance between the subsidiary company and the company is not far from each other, you can directly connect the two routers with serial lines. This method can save the cost of laying optical fiber, but the transmission speed will be affected, and the distance between the two routers must not be too far.As shown in network topology 1, two vrouters A and B are connected to their S0 ports with A serial line. Configuration command:RouterConfig t enters Configuration ModeInt s

Based on security considerations, many companies may use the Wide Area Network Technology for Intranet Communication. Lan Wan Network cable Serial Line Transmission Distance near Long Transmission Distance > 1000 m Asynchronous transmission Synchronous Transmission Fast transmission speed Slow transmission speed To achieve synchronous transmission, a clock frequency must be provided by

(including signal ground SG) of asynchronous communication are 2, 3, 4, 5, 6, 7, 8, 20, 22 ② 20mA current ring signal 9) ③ 6 blank) ④ One protected area (PE), used as the grounding end of the equipment (foot) Note: The 20mA current ring signal is only provided by ibm pc and ibm pc/XT machines. It is not supported by AT machines or later ｡ DB-9 connectors (2) AT machine and later, do not support 20mA current ring interface, use DB-9 connector, serves as a connector that provides both a multi-fun

S0Clock Rate 10000008. Common Inspection CommandsShow Controllers serial 0: see if the interface is DCE or DTE with this commandShow interface interface: viewing interface informationShow IP Interface interface: View protocol letter for InterfaceShow CDP neighbors: show neighbor devicesShow CDP neighbors detail: Show neighbor DetailsNo CDP enable: Close CDP notification9. Common Debugging CommandsDebug CDP

equipment (foot) Note: The 20mA current ring signal is only provided by ibm pc and ibm pc/XT machines. It is not supported by AT machines or later ｡ DB-9 connectors (2) AT machine and later, do not support 20mA current ring interface, use DB-9 connector, serves as a connector that provides both a multi-functional I/O card or a COM1 and COM2 serial interfaces on the motherboard. It provides only nine signals for asynchronous communication. DB-25 Connector pins are allocated with DB-25 pins. it i

This article mainly introduces the case of start debugging of the 4E1 port of the Huawei router, explains the technical problems of this debugging, and describes the operation process in detail later in this article, I believe this article will help you better understand the debugging of the 4E1 port of the Huawei router. Note: because there are no ip resources, we have to use 2 m lines to transmit data. The devices used are M262 routers, and the uplink devices are Huawei's NE16. Each of them ha

Frame Relay WAN Protocol Configuration 1. Frame Relay is a high-performance WAN protocol, which runs on the physical layer and data link layer of the OSI reference model. It is a data packet exchange technology and a simplified version of X.25. It skips some strong functions of X.25, such as window technology and data re-transmission technology, but relies on high-level protocols to provide error correction, because Frame Relay works on better WAN devices, these devices have more reliable connec

simultaneously transfer up to 4 0 9 5 virtual connections on a virtual connection.The 3rd tier provides the following basic services: Create two logical channels between DTE and DCE. One channel is used for the sending side and one for the receiving end. Create a virtual circuit outside the network device interface connected to the logical channel machine.X. the shortcomingsThe X.-based protocol provides o

earliest definition of themThis is mainly because the early 232 was used for the telex typewriter, and later used for DTE and DCE connections, and then evolvedAsynchronous Serial Port is now a universal asynchronous serial transceiver UART. In short, people do not want to add new IO ports for computers.As a result, there are more and more types of original serial port access devices, resulting in confusion

. The LMI virtual Circuit status message provides communication and synchronization between the frame relay DTE and DCE devices. These messages are used to periodically report the state of the PVC, preventing data from being sent into the black hole (i.e. no longer exists on the PVC). An LMI multicast extension allows multicast groups to be allocated. Broadcast technology allows routing updates and address

) # description WAN Connection to chicagrouter3 (config-if) # ip address 192.168.99.5 255.255.252router3 (config-if) # encapsulation hdlcRouter3 (config-if) # clock rate 56000Router3 (config-if) # no shutdownRouter3 (config-if) # exitRouter3 (config) # endRouter3 # note that clock rate needs to be configured on the DCE side. If it is a DTE with a clock rate configured, this configuration is ignored. Use the

switch of the network operator Beijing --- Shanghai pipeline No.: 100 101 102 Beijing --- Guangzhou pipeline No.: 200 201 202 Note: To enable the frame relay function on a vswitch, you must enable the command --- "frame-relay switching !! Configuration content: 1. the user port is always the DTE interface, and the service provider port is the DCE interface. 2. Three types of cisco ansi q933a in LMIS signal

Ppp chap authentication Target: Purpose: Understanding the process and configuration of ppp chap authentication Lab device: Router with serial port) 2 V.35 cable DTE/DCE) 1 pair Tutorial principle: The PPP protocol is located at the data link layer of the OSI Layer-7 model. The PPP protocol is divided into two sub-layers by function: LCP and NCP. LCP is mainly responsible for Link negotiation, establish