Specifications

2-42
Reference Guide
Model No.
Running Head
ATM Server Card Applications
Standards-based ATM adaptation for voice, video, and data
This feature enables the integrated access system to adapt the traffic from a wide variety of
legacy interfaces to ATM. Therefore there is no need to upgrade or replace existing equipment
while migrating to ATM solutions. This results in significant savings in capital expenditure.
Interoperable with deployed ATM switching equipment such as ADC Kentrox, Fore Systems,
Lucent, etc.
This is a key selling point of the ATM server. Because of its interoperability with already
deployed ATM switching equipment, it can be easily added with minimal costs when the MIS
manager wants to collapse parallel ATM and TDM networks into a single ATM network.
When an ATM network is installed, typically there is excess bandwidth and port capacity that
behooves such a merger of networks. For instance, when an ATM switch is deployed each line
card will have multiple ATM ports out of which only one or two may be used for data traffic.
The integrated access system w/ ATM server can be connected to the unused port(s) thereby
consolidating other legacy traffic on to the ATM network. This results in significant cost
savings for the customer since there is only one as opposed to two networks to be managed.
Provides DSO granularity for virtual circuit input
By providing DS0 granularity, the ATM server is able to direct individual lower speed voice
and data circuits to unique destinations through out the ATM network. This is accomplished
without “burning up” multiple physical ports on the ATM switches which are expensive. The
ATM server’s highly efficient and cost-effective aggregation of lower speed CBR and VBR
virtual circuits makes this possible.
Supports constant and variable bit rate adaptation
By supporting constant and variable bit rate services, the ATM server tailors the adaptation to
best suit application requirements for quality of service (QoS). E.g., typically voice and video
applications require constant guaranteed bandwidth and stringent delay constraint and are
modeled as CBR traffic. Data, compressed voice and video are amenable to variations in
bandwidth and delay requirements and are modeled as VBR traffic.
Manageability via SNMP and TELNET
SNMP and TELNET manageability eliminates need for a separate integrated access system
network management package. The system and its components can be managed from the same
existing network management device that manages the ATM backbone and other devices.
The ATM server is deployed in the following application scenarios to provide a very
cost-efficient and high-quality ATM service to the end-users:
•
Interactive Distance Learning/Tele-Medicine
•
Legacy Adaptation to ATM