vdsl ptm

DHCP and route settings are complex. Here we will look at A small office network with two companies A and B working in one office building. We apply for A 4 m exclusive VDSL leased line, where A pays 3 m of leased line fees, B is to pay 1 m of leased line costs), a total of 60 computers, each 30 computers, each three non-network 24 port D-LINK switch, a Huawei 1821 router 1wan port, 4 LAN port ). Special requirements of users: 1) A and B cannot access

blocked. The system software can be Windows2000, WindowsNT, or Windows XP. Wireless Network advantages 1. It not only saves IP resources, but also uses the Cache Technology on the Proxy server, so that resources accessed by computers on each campus network are stored on the hard disk of the Proxy server, in the future, machines can access the same resources directly from the Proxy server, which can reduce traffic, increase network speed, and make full use of resources. 2. Log diary: In addition

Ethernet architecture ensures the expansion of wireless network space and the perfect use of a variety of smart applications on wireless networks. Some technical companies, such as Cisco, provide users with comprehensive Wireless Network Solutions, positioning wireless networks in the application of group users to facilitate the work and use of customers, A wireless network is built on the basis of the wired network system, so that the wired and wireless networks complement each other and form

Ethernet over the telephone line. VDSL signals are transmitted at the physical layer and Ethernet signals are transmitted at the second layer. It can extend the transmission distance from the original 100 meters to up to 5 kilometers, which is especially suitable for the city range and the speed remains unchanged. Any cable can be supported, greatly facilitating the application. System Development From the perspective of system architecture, Ethernet

Example: 3026 2012 5012. The value of 2nd bits is 0 ~ 4 indicates that it is a layer-2 switch. 3550. The fifth digit is 5 ~ 9 indicates that it is a layer-3 switch. LI (LitesoftwareImage) indicates that the device is a weak feature version. SI (StandardsoftwareImage) indicates that the device is in the standard version and contains basic features. EI (EnhancedsoftwareImage) indicates that the device is an enhanced version and contains some advanced features. HI (HypersoftwareImage) indic

Huawei Switch Model Daquan LI (Lite software Image) indicates that the device is a weak feature version. The SI (standard software Image) indicates that the device is a standardized version and contains the underlying features. EI (Enhanced software Image) indicates that the device is an enhanced version and contains some advanced features. HI (Hyper software Image) indicates that the device is an advanced version and contains some more advanced features Z, indicates no upstream interface; (new

Configure shared DCCA physical interface in shared DCC can belong to more than one dialer bundle (dial bundle), serving multiple dialer interfaces but one dialer interface only corresponds to one destination address, and only one dialer bundle is used; one dialer Bundles can contain multiple physical interfaces, each with a different priority.The physical interfaces that support shared DCC include: ADSL interface, G.SHDSL interface, VDSL interface, E1

broadly divided into two categories: symmetric and asymmetric.symmetric DSL:HDSL, SDSL, MVL and other users replace the traditional t1/e1most widely used: HDSL: Two pairs of twisted pair, more for switch, distance learning, video conferencing and so on. asymmetric DSL:ADSL, RADSL, and VDSL are used for Internet or VOD (video-on-demand) systems. "Differences in bandwidth allocation between switches and hubs"Switches: Shared bandwidth, equal processing

; Cable MODEM-> Computer 4, optical fiber-> photoelectric converter-> Proxy Server-> pc adsl/VDSL PPPoE: run a third-party dialing software such as Enternet300 or a dialing program that comes with WinXP on your computer. Enter the account and password provided by your ISP. You must dial the number before accessing the Internet; alternatively, your adsl modem has enabled the routing function, fills in the account and password provided by the ISP, and s

compressed, and subsequent packages are compressed;Compression: show compression;NAT: inside source: initiated by the Intranet ----- inside local/global address;NAT: outside source: initiated by the Internet --- outside local/global address;Overlapping occurs when the company makes a merger;Overload (Multiple-to-single, multiple-to-few) is a random port number, while PAT is specified;When the debug ip address is nat, the "*" is cached, and the others are CPU;When NAT changes, the cache must be

relationships between people under the banner of 1 GB of capacity. Some may ask, if there are 1 billion Internet users, how many relationships can be collected through Orkut and Gmail? Why is it used to collect relationships? These two questions should be answered together. Of course they cannot be answered. It is my guess: it is trying out the real social networking. the year before, China Telecom went to our house to test VDSL. They heard that the

DSL is the fastest-growing high-speed broadband Internet access technology in the world. Its full name is digital subscriberloop (digital user loop). Its History will be traced back to 1988,Bell labIEngineers have designed a way to load digital signals to unused telephone lines, which enables data communication over a common telephone line without affecting the voice service. But Bell's management is not enthusiastic about this, because if the user installs two lines, it will bring more profits.

the accumulation of online relationships over the years !! Google is very smart. It collects relationships between people under the banner of 1 GB of capacity. A friend may ask how many relationships can be collected through Orkut and Gmail if there are 1 billion online users? Why is it used to collect relationships? These two questions should be answered together. Of course they cannot be answered. It is my guess: it is trying out the real social networking. the year before, China Telecom went

. It not only saves IP resources, but also uses the Cache Technology on the proxy server, so that resources accessed by computers on each campus network are stored on the hard disk of the proxy server, in the future, machines can access the same resources directly from the proxy server, which can reduce traffic, increase network speed, and make full use of resources. 2. Log diary: In addition to online monitoring, the website accessed by the client can observe the activity of the current user.

Siemens, Germany, has launched a full range of DSL solutions to support the rapid development of the communications industry in response to the broadband and data features of communications networks. Siemens, the largest overseas joint venture Beijing International Exchange System Limited (BISC), has introduced the product ——— Xpresslink to China. Xpresslink with Siemens other data products to provide users with powerful, operator-oriented broadband network of the whole solution. ——— Editor Xpr

quick decision with the way you purchased your router's previous network connection. There are several common ways to connect hardware: 1, telephone line-> ADSL modem-> Computer 2, twisted pair (Ethernet cable)-> computer 3, cable TV (coaxial cable)-> Cable modem-> Computer 4, optical fiber-> Photoelectric Converter-> proxy server-> PC ADSL/VDSL PPPoE: A computer running a third-party dial-up software such as Enternet300 or WinXP system with it

With the development of multimedia technology, communication technology and hardware storage technology, people are no longer satisfied with the former single and passive information access, but want to participate in the program actively. Video-on-demand (video on Demand,vod) is a kind of interactive business, which causes the cable television industry and the communication industry to attach great importance. Interactive VOD system consists of front-end processing system, broadband switching

technologically powerful companies, such as Cisco, to provide users with a comprehensive wireless network solution, the wireless network positioning in the group users of the application, user-friendly office and use, in the wired network system based on the establishment of a wireless network, so that wired and wireless complementary to each other, so that the two formed a good integration and unity. In addition, Cisco's long-distance Ethernet solution extends Ethernet over a distance. This te

in bandwidth. In the case of fiber to households, the user's business needs are no longer satisfied with the simple internet, but become a set of data, voice and video services in one integrated business access needs. This is also the promotion of "triple-net integration" the most important driving force. One of the major changes in user demand diversification is the significant increase in bandwidth requirements. To the current IPTV needs bandwidth for 2mbit/s, all the way high-definition TV b

, according to the replacement of products, can be changed to 1, 2, 3, 4; A2 for the 5-L2/L3 switch, currently 5, according to the replacement of products, can be changed to 6, 7, 8, 9; A3A4 two digits are related to the number of ports in the product, which determines the product family based on the total number of ports: A3A4 is 08-indicates that the downlink port is 8, the uplink port is 0, 1, 2; A3A4 is 12-indicates that the downlink port is 12, the uplink port is 0, 1, 2; A5 is used to