1. BitStorm 4800 Overview4800-A2-GB20-10 July 2002 1-3FeaturesThe BitStorm 4800 IP DSLAM has the following features: Compact size (height = 1U) Shelf-mountable (up to eight units high) and rack-mountable Low price per port Up to 48 ports per unit Up to 384 ports per stack, with a single high-speed uplink Multiple uplink options:— Gigabit Ethernet uplink using wire or fiber— V.35, EIA-530-A, or X.21 uplink using Model 4804 Management Modulewith suitable adapter Little or no connection management and configuration (uses learning bridgecapabilities of Ethernet) IEEE 802.3x standards-based flow control for maximum performance andminimum packet loss Auto-rating DSL technology to adjust to line conditions Auto-sensing on all Ethernet ports to adjust automatically to the speed ofattached devices Automatic detection of full duplex or half duplex operation on all Ethernet ports Automatic switchover detection for Medium-Dependent Interface (MDI) andMDI crossover (MDIX) connections, ensuring plug-and-play compatibility withhubs and endstations Web-based server for management Virtual Private Networking (VPN) for management, using the IPSec securityprotocol Command Line Interface (CLI) like that of popular routers Support for Simple Network Management Protocol (SNMP) Version 1 andVersion 2 Support for off-the-shelf Asynchronous DSL (ADSL) endpoints Uplink VLAN tagging for billing and access control