(免费下载华为培训)二营学员接入网讲解词英文.doc

Commentary for exhibition hall (Access network) 1、Portfolios in Access Solution Key Points: Operators need carrier-class solution. Mature end-to-end solution covering service layer, edge layer, access layer and CPEs. To convince customers through some technical characters or references, such as end-to-end maintenance solution, management solution, IP TV solution. To point out the features of some Series solution, based on the customer intention. Huawei is a complete end-to-end solution provider in broadband and access field, we offer solutions covering service and management solution, multi-service edge routers (or BRAS), abundant access solutions and series CPEs. Access layer is the basic for subscribers market, in this layer, there are there series solutions: One is ATM/IP compatible DSLAM solution, we name it SmartAX MA51 Series, which supports not only ATM STM-4/STM-1/E3/IMA /..but also GE/FE interfaces for uplink or subtending. The series is very suitable to scenarios with traditional ATM core network or ATM/IP compatible network. While, since most applications are based on IP, IP has been accepting as the trend of broadband, choosing IP-based DSLAM will be a good choice for most operators. Huawei IP-based DSLAM is SmartAX MA53/56 Series, which has the inherent advantages for multicast and IP based service promotion, such as triple-play services and VoIP/VoBB. Both SmartAX series support standard module, medium module and mini-boxes, as we shown here. In access layer, there is another solution, especially been fond of by ILECs and some VoIP operators. It is MSAN, multi-service access network. In some cases, it is also called iMAP, NG-AN, or NG-DLC. In this kind of solution, all traditional TDM based services and IP or ATM based broadband services are unified in one system, so that one access device can serve many core networks, maintenance work and device cost could be reduced. Huawei MSAN solution is HONET UA5000 or MD5500. In service edge layer, Huawei suppl