Brief introduction of broadband access server

Broadband Remote Access Server (BRAS) is a new type of broadband network application access gateway, which is located at the edge layer of backbone network. The data access of IP/ATM network can be completed by user bandwidth (at present, the access means are mainly based on xDSL/Cable Modem/ High Speed Ethernet (LAN)/ Wireless Broadband Data Access (WLAN), etc. ), and realize broadband Internet access in commercial buildings and residential areas, IP VPN service based on IPSec(IP Security Protocol), the construction of enterprise intranet, and ISP's support for user wholesale service.