ddn obits

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to DDN, frame relay, X.25, and PSTN (analog telephone line ).· Synchronous/asynchronous serial port, which can be set as synchronous working mode by software.· AuI port, that is, the crude cable port. Generally, an external converter (AUI-RJ45) is required to connect to the 10base-t Ethernet network.· The ISDN port can be connected to the ISDN network (2B + d) and can be used for LAN access to the Internet.· Aux port, which is an asynchronous port. I

interface used to connect to the coarse coaxial cable. In fact, the AuI port is also commonly used to connect to the WAN, however, this type of interface is rarely used in the WAN. On Cisco 2600 series routers, two WAN connection ports (6) for AuI and RJ-45 are provided, allowing you to select the appropriate type as needed. The image of this topic is as follows: (3). High-Speed Synchronous Serial Port In the WAN connection of the router, the port with the most applications must be counted as

" (Serial, this port is mainly used to connect to network connection modes such as DDN, frame relay, X.25, and PSTN. Sometimes DDN or X.25 or other WAN connection technologies are used for leased line connection between enterprise networks. This type of synchronization port generally requires a very high speed, because in general, both ends of the network connected through this port require real-time synchr

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fully and reasonably use the data collected by the system. (4) Wan section. The Wan part connects the data processing applications of signaling data collection and processing, and can be networked in the following ways: ---- DCN ---- DDN ---- X.25 ---- Frame Relay Vrouters are available for network devices. Today, all the signaling data is connected to the same physical location through the transmission network. Then, the signaling data collection an

At present, the market share of Huawei routers is still very high. At the same time, their configurations are different from those of other routers. First, let everyone know about the VRP software upgrade operation, then we will introduce the differences in the default link layer encapsulation (mainly used for DDN configuration ). The features and configuration interfaces of Huawei routers and CISCO routers of the same grade are exactly the same, and

. There are many methods for LAN Access to Wan, such as common dialing, satellite lines, and digital networks. When the computer LAN and WAN need to be interconnected through digital data communication networks such as DDN, X.25, ISDN, and frame relay, routers are usually used. A vro is one of the most important network interconnection devices. It works at the network layer and is used to interconnect different types of networks. The biggest feature o

At present, many enterprises have built internal LAN, but with the advent of the INTERNET era, only setting up LAN can no longer meet the needs of many enterprises. More users need to publish information on the INTERNET, or information retrieval, connecting the enterprise intranet to the INTERNET has become an urgent requirement for many enterprises. There are many ways to connect a LAN to the INTERNET, such as using ISDN or general dialing) + proxy server software WINGATE or gateway server soft

The dual-ADSL Access Line has become the best choice for small and medium-sized enterprises to access the network. The question also arises: how should enterprises choose the dual-ADSL Access Network? For small and medium-sized enterprises, if leased line access is used in the selection of access services, it is likely that the cost will greatly increase the overhead and burden of enterprise operations, however, there is a problem of low speed through dialing or ADSL access. I believe many enter

Dual-ADSL line: provides the best configuration scheme for enterprises. Therefore, you must first understand the basic knowledge of the dual-ADSL line to prepare for future configuration. For small and medium-sized enterprises, if leased line access is used in the selection of access services, it is likely that the cost will greatly increase the overhead and burden of enterprise operations, however, there is a problem of low speed through dialing or ADSL access. I believe many enterprise network

Objecttype/objecthandle/ddnpath attributename (AttributeName must start with "-") Attrnamevalue (attribute name value)/ Danpath [Value]/relationreferenceEg: (above three cases)stc::create ProjectStc::get $project _handleStc::create project.port/stc::get $project _handle. PortStc::get $port-location/stc::get $port-active-locationStc::config $port-active false-location "//10.1.1.1/1/1"Stc::create $streamblock-under $port-frameconfig ""-ethernet. Ethernetii.ethertype 880b/stc::config $project-port

High notes--the Network Knowledge chapterFirst, the classification of the network: LAN, metropolitan area Network (city), Wan (inter-city).Second, LAN protocol:Ethernet/ieee802.3(Access method CSMA/CD, multi-channel listening, competition)Development: Fast Ethernet; 802.3u;100m;Gigabit Ethernet (and ATM Technology Competition): Optical fiber or Super 5 class, 6 class unshielded twisted pairToken Ring network/ieee802.5:Ring, star, general line; (Disadvantage: complex protocol, large expenditure;

Now the general family Internet use ADSL telephone line more online, and the home generally have several computers, so how to make a few computers at the same time Internet. This is to use the broadband router, in general, there are several cable sockets on the broadband router, these network cable sockets on some labeled WAN, and some network port labeled LAN, in the end what is the meaning of it. And what difference does it have. Please look down. First, the difference between the WAN port and

Campus network is the infrastructure of information construction in colleges and universities, and is an important platform for information and modernization of teaching and research management. The campus network of most colleges and universities has a few years ' history since it was first built. When first built, it is generally rented a DDN line connected to the Chinese education and Research computer network (CERNET). Because the Chinese educatio

, and facilitates the further optimization of network topology structure.* Build Local Information loop: Based on the backbone of LMDS system, use reasonable networking technology to build high-speed exchange platform, enrich local information service through own construction, website mirroring or introducing information from outside, and rent the Telecom department's export line to realize the interconnection of local loop and Internet. Considering that the local information exchange platform n

In the past two years, enterprises to surf the country in a vigorous expansion of the enterprise to provide access services operators and ISPs are also booming up, but all enterprises understand why to the Internet, to what network?The greatest charm of the Internet is the global computer system connected together, the most important role of the Internet is the sharing of online resources, rich information on the Internet. Enterprises connected with the Internet is to strengthen the internal ele

for scalability and the real cost savings that can be achieved.Gao Yin that, in essence, Netcom MPLS VPN is not only a product, but also a service, it is based on MPLS technology, combined with differentiated services, flow engineering, to provide users with high-quality private network services. It has the following characteristics:First, high security. First, Netcom MPLS VPN provides full redundancy protection from equipment, route to route, secondly, using MPLS as the channel mechanism to re

The concept of replication Replication, as an important and powerful technology, provides strong support for the storage and processing of distributed data. Microsoft SQL Server can generate a number of According to the copy, and can distribute the copy of these data to different places, automatic data synchronization, keep all the data copy has the same data. Sql The server replicates between two databases using a replication pattern called "loosely consistent". These two databases can be on t

transceiver to connect to each other. AUI Port We have also discussed the AUI port in the LAN. It is a network router interface used to connect to the coarse coaxial cable. In fact, the AUI port is also commonly used to connect to the WAN, however, this type of router interface is rarely used in the WAN. This port is mainly used to connect to network connection modes such as DDN, Frame Relay, X.25, and PSTN analog telephone lines. Sometimes