C-Com IPAM-1600s Series, Руководство пользователя, Страница: 16 / 148

Introduction
UM1600-2-A 2002
14
IPAM-1600s Overview
Today’s bandwidth-hungry application such as Internet access, remote LAN
access, teleconferencing, workgroup and data sharing, telecommuting and
numerous varieties of digital video services are driving today’s demand for
high-speed data network access.
C-Com Corporation designs, develops and markets transmission systems
based on Digital Subscriber Line (DSL) technology for copper wire plant. They
support all contemporary data rates, from 64kbps to multi-megabit symmetric
and asymmetric transmission for voice, video and data communications over a
single copper pair. C-Com access systems link enterprise LANs and Network
Service Providers over private and public networks across the local loop, the
connection between the customer and the first network node.
Using the latest ADSL technology, C-COM IPAM-1600s series offers service
providers a very cost-effective solution for immediate implementation of multiple
services in private and public networks.
IPAM-1600s is one product of the IPAM-1600s series, it acts as a standalone
IP-based DSLAM, which can concentrate and manage up to 16 ADSL lines.
User can use local RS-232 CID and/or remote TELNET/SNMP to manage the
IPAM-1600s directly
Since the ATM backbone coverage is not so general in the real broadband
network environment. Instead of traditional DSLAM system provides ATM uplink
interface, the IPAM-1600s concentrates 16 ports of the ATM over ADSL traffic
which is encapsulated by ADSL CPEs, and maps each user’s data
encapsulated in ATM-PVC to Ethernet-with/without VLAN-tag packet (depends
on the VLAN was enabled or not for the specified ATM ports), and then uplink to
Telco or ISP directly, User can enable VLAN-PVC mapping capability for each
ADSL port independently. The IPAM-1600s acts as bridge for the ADSL ports
without enabling the VLAN-PVC mapping feature. In addition, it also acts as a
manageable SNMP- based layer2 concentrator.
IPAM-1600s provides both Ethernet-VLAN and non-VLAN to ATM-PVC
mapping feature and bridge mode for the ISP to isolate user’s data with security
and to provide lots of service enhancement capabilities. IPAM-1600s supports 2
ATM PVC links for each ADSL CPE.