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VoxTechnologies
Enterprise Network Series
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MainStreet FRATM Interworking Unit
Release 3.0
Alcatel's MainStreet Frame Relay/Asynchronous Transfer Mode (FRATM)
Interworking Unit provides high performance frame relay-to-ATM interconnectivity
using a standard E3 or T3 ATM interface, allowing frame relay networks and
terminal equipment to connect to ATM terminal equipment over an ATM network.
The FRATM Interworking Unit attaches to a 3600 MainStreet Multiservice
Bandwidth Manager through a FASTbus Interconnect Panel (FIP), allowing Frame
Relay Engine (FRE) cards and Packet Engine (PE) cards on the FASTbus to connect
to an Alcatel 7470 Multiservice Platform (MSP), formerly the 36170 Multiservices
Switch*, or to a third party ATM network. The FRATM can also provide high speed
backbone trunk service between 3600 MainStreet nodes.
The FRATM Interworking Unit simplifies the design and management of frame
relay backbone networks, and facilitates migration to ATM backbone networks. As
a result, frame relay networks and terminal equipment have transparent use of an
ATM network.
The FRATM Interworking Unit provides high performance, standards-compliant
frame relay connectivity to ATM service for public, private and hybrid
networking applications.
* This product belonged to the Newbridge family. Newbridge was acquired by
Alcatel in May 2000.
Overview
The FRATM Interworking Unit is an optional rack-mountable unit for a 3600
MainStreet System with a FASTbus. It provides high performance frame
relay-to-ATM interconnectivity using a standard E3 or T3 ATM interface.
The FRATM unit complies with the ATM Forum B-ICI specifications and UNI 3.1
specifications for PVC-based frame relay service support on B-ICI by providing
mapping and encapsulation functions for transparent ATM transport of frame relay
services.
Network management
The FRATM unit can be managed from the Alcatel 5620 Network Manager (NM). The
5620 NM system provides integrated remote management of the FRATM unit and other
network nodes, including configuration, maintenance, automatic rerouting and
statistics collection.
Applications
Connects 3600 MainStreet nodes using high speed trunks at up to T3 rates,
simplifying the design and management of frame relay backbone networks
Facilitates migration to ATM backbone networks. High speed frame relay backbone
for 3600 MainStreet nodes ATM backbone for 3600 MainStreet nodes To connect to
an ATM network, the FRATM connects frame relay PVCs over a standard E3 or T3 ATM
link. This means that frame relay networks and terminal equipment have
transparent use of an ATM network. Use a 3600 FIP/FRATM combination to feed
frame relay traffic into a collocated 7470 MSP switch, increasing the frame
relay fanout capacity of the switch. Frame relay-to-ATM gateway Allows frame
relay networks and terminal equipment to connect to ATM terminal equipment over
an ATM network. The ATM terminal equipment must support the frame relay service
specific convergence sublayer (FR-SSCS).
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