vdsl dslam

business broadband network, the broadband access network is undergoing profound changes. On the one hand, xDSL technology gradually from adsladsl2adsl2+ to provide a higher bandwidth VDSL2 upgrades, which also requires vdsl2dslam closer to the user side. With the increase of the number of VDSL2 Zhi, the requirement of efficient aggregation of large quantities of dslam is put forward. On the other hand, fiber is rapidly replacing copper wire as an ide

In this paper, several popular access network technologies are described in detail, and the advantages and disadvantages of different technical schemes are analyzed and compared.Key words: Access XDSL ADSL VDSL Cable Modem LMDS With the rapid popularization of Internet and the opening of many new services on the Internet, the demand for data transmission rate is increasing. However, the current access to IP network technology is still based on dial-u

uses the industry-leading "single fiber three wave" technology, through the an5116-02 of a variety of business through 1 optical fiber transmission to close to the user, connected to the optical branch of the passive optical splitter, branch optical fiber to connect the end user. The maximum tap ratio supported by this system is 1:64 and the maximum access distance is over 20 km. Beacon Communication fully take into account the different operating environment needs, targeted to develop a suita

my MAC is MMM, Send a counterfeit ARP Reply to the host BBB: BBB, I have IP AAA and my MAC is MMM Due to the aging mechanism of ARP Cache, periodic continuous spoofing is also required. Iv. Prevention of ARP Spoofing 1. carriers can use Super VLAN or PVLAN Technology The so-called Super VLAN is also called VLAN aggregation. This technology creates multiple Sub VLANs in the same Sub-network and specifies the entire IP subnet as a VLAN aggregation (Super VLAN ), all Sub VLANs use the default gate

Some devices of a certain type of infrastructure used by China Unicom in a certain province can be controlled (directly leading to network disconnection [reset/reboot]) Network disconnection in minutesIt also makes it difficult for people to take a good look at the film! This problem is the same as that of Huawei devices.I'm curious. The two companies are supposed to be competitive.Why is the system used by the device almost identical?Except for weak passwords, commands are the same.Alas, you ha

The Training Unit in Zhengzhou cannot work less, alas ~ Destiny The Training Unit in Zhengzhou cannot work less, alas ~ Destiny The Training Unit in Zhengzhou cannot work less, alas ~ Destiny. To activate oneHuaweiSmall DSLAM, E100, 96-line DSLAM device. Data needs to be done on BAS, but when adding data error: [a-b1] portvlan ethernet 4 vlan 500 100 [a-b1-ethernet4-4-vlan500-599] access-type layer2% Onl

user's APRU value. Ii. Bandwidth bottleneck of IPTV applications IPTV can use existing copper resources to transmit interactive TV programs. At present, most broadband users in China use ADSL as the access method. However, using the ADSL Access Mode to watch IPTV faces the following two challenges: 1. distance problem: the user line ring resistance suitable for activating ADSL service should be less than 900 ohm, and the line length should be less than 3.7 kilometers. The longer the line distan

This article analyzes the reasons why the ADSL2 standard has become a new favorite of the network. There are many problems with the ADSL2 standard on the network. For various ADSL2 standards, the following is a question and answer topic, hoping to cover all questions about the use of ADSL2 standards by netizens. Enhanced interoperability In the ADSL2 standard, more parameters will be transmitted during the training phase. In addition, many parameters are determined by the receiver end rather tha

adjustable bandwidth leased line services, provide excess bandwidth leasing, improve the bandwidth utilization of transmission networks, increase the flexibility of leased line services, and facilitate operators to provide customized leased line services for various customers, to provide operators' competitiveness and business income. 　　 5) The Ethernet aggregation service (MSTP) supports two-layer Ethernet switching for business convergence, which can further improve the utilization of transmi

Conversely, if the corresponding multicast group is not found locally, then proxy will send the request to the router on the upper end and establish the multicast group locally. When the multicast member exits, proxy also checks to see if there are other multicast members in the multicast group, and if so, it simply deletes the member who applied for the withdrawal in the multicast group, otherwise it notifies the router at the upper end and logs off the multicast group. Therefore, the above tw

router. At the egress PE router, the PE router removes the packet label and forwards it as a general IP packet to the CE router connected to it. Because each packet contains two labels, the last-to-last hop label of the MPLS domain must be used to exit the stack. According to my impression, P, PE, and CE are not only the concept of MPLS. They are available in Traditional VPN technologies. The specific meaning is explained by the two upstairs. Indeed, in the traditional VPDN, the PE can be a LAC

accordance with the mechanism specified in IGMP V2, including the queryers' election mechanism, regularly sending General query information, and sending specific queries when receiving the exit package. IGMP Proxy implements different functions on two ports, with a relatively large workload. The advantage is that when there is no router in the network, the IGMP Proxy device can act as the queryer, in addition, if you want to extend the multicast routing function, Proxy is more convenient than S

In network attack defense, we must be vigilant against both security protection and various attack forms and vulnerabilities. In this regard, it is well known that the attack and defense of the ARP Protocol has become a battle. We have introduced a lot of related content and topics. So here we will give a brief summary. Prevention of ARP Spoofing 1. carriers can use Super VLAN or PVLAN Technology The so-called Super VLAN is also called VLAN aggregation. This technology creates multiple Sub VLANs

①. 1483B: refers to the 1483 bridging protocol. This function is implemented based on the Basic bridging protocol and on the first layer of the network physical layer, when this solution is used, the MODEM only acts as a bridge device and does not provide any protocol conversion or address filtering functions. Generally, after the MODEM can be synchronized with DSLAM and the VPI/VCI is set, basically, users can access the Internet. In short, MODEM ser

multicast group is found locally, the proxy will send an application to the upstream router and create a multicast group locally. When a multicast member exits, the proxy also checks whether other multicast members exist in the multicast group. If yes, then, it only deletes the members applying to withdraw from the multicast group. Otherwise, it notifies the upper-end router to cancel the multicast group. Therefore, the above two application solutions have their own advantages and disadvantages

device's L2 switching performance than the pure Ethernet switch. In addition, the MSTP provides Ethernet transmission through the encapsulation of the Ethernet frame, map to a number of VC-12 or VC-3, and then the VC-12, VC-3 cascaded and implemented, compared to the Ethernet switch network more flexible, more bandwidth utilization, you can use the optical mouth through bare fiber direct connection. L2 Ethernet switching and transmission is provided in the metropolitan area, and the

transmission platform, the multiple service characteristic and the flexible broadband transfer ability. System Application Full-service network access system is a remote access system, can provide including olt and ont seamless connection, including a full range of solutions. From the operator's point of view, in positioning product market, make full use of the advantages of Apon point to many points to save limited ATM switch port, improve bandwidth utilization. With the transition of ATM sw

Understanding some knowledge about TP-LINK router settings, for TP-LINK router users is very important. In China, the mainstream broadband access modes include ADSL, VDSL, FTTB + LAN Dynamic IP + WEB Authentication, FTTB + LAN static IP + WEB authentication, and wired broadband access. Many access solutions are using the router, but compared with different access methods, the TP-LINK router setting method is not the same, today is to use more compatib

the webpage ad Interception Function Firefox and maxthon browsers have long been able to intercept web advertisements. Now IE7 has also added this feature. You can set whether to intercept advertisements in the installation wizard interface and tool menu of these browsers. 5. Download using multi-threaded tools or P2P and P2SP tools Multi-thread download tools such as Netants and Flashget), P2P tools such as BT and eMule, and P2SP tools such as Thunder can fully tap the potential of ADSL lines

In China, the mainstream broadband access modes include ADSL, VDSL, FTTB + LAN Dynamic IP + WEB Authentication, FTTB + LAN static IP + WEB authentication, and wired broadband access. Many access solutions are using a router, but compared with different access methods, the router setting method is different, today we use more compatible TP-LINK broadband road as an example, describes how to set up a vro in different bandwidth modes. 1. ADSL: ADSL acces