Broadband Remote Access Server,BRAS

Broadband access server (Broadband Remote Access Server,BRAS) is facing the broadband network applications of new access gateway, it is located at the edge of the backbone layer, can complete user bandwidth IP/ATM network data access (currently access methods are mainly based on xDSL/Cable Modem/high-speed Ethernet technology (LAN) / wireless broadband data access (WLAN), etc.), implement the commercial building and village resident of broadband Internet access, IPSec (IP Security Protocol based on IP VPN service, of constructing the enterprise internal Intranet, support the ISP to user wholesale business applications.

Broadband access server (BRAS) mainly complete two aspects, one is the function of the network load function: responsible for end users to the Point - PPPoE (Potocol Over Ethernet, the Point - is a kind of the ethernets transmit PPP session) connected, gathering the way the flow function; user 2 it is control functions: authentication system, billing system with customer management system and service with combined strategic control system realize the user access authentication, billing and the management functions.

A face broadband network applications of new access gateway. It is the backbone of the broadband access between bridge, providing basic access means and broadband access network management functions. It is located in the edge of the network, offer broadband access service, achieve a variety of business converge and forwarding, can satisfy the different users for transmission capacity and bandwidth utilization requirements, so is the core equipment of broadband users access.