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VoxTechnologies
Enterprise Network Series
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Alcatel 7470
Multiservice Platform | Rel. 4.2
The Alcatel 7470 Multiservice Platform, formerly the 36170 Multiservices
Switch*, is an industry leading, highly scalable, high capacity ATM universal
edge services platform. It interconnects and switches traffic between T1, E1,
T3, E3, HSSI, OC-3, STM-1, OC-12, and STM-4 spans for numerous service
offerings.
Universal services
As a service provider you will find that the 7470 Multiservice Platform is
ideal for edge networks that support multiple services using permanent virtual
circuits (PVCs), soft permanent virtual circuits (S-PVCs) and switched virtual
circuits (SVCs).
These services include:
- cell relay
- frame relay
- circuit emulation
- voice services
- internetworking
- broadband supplementary services
The 7470 Multiservice Platform has the throughput and traffic management
features required for large-scale service deployments based on a future-proof
ATM infrastructure.
Modular architecture
The switch complex is a fully interconnected, non-blocking, output-buffered
matrix. The flexible peripheral shelf configurations provide a wide range of
high port densities including both high speed and low speed ATM.
The modular architecture of the 7470 platform allows you to expand from a
cost-effective single shelf system to a large multishelf system on an as-needed
basis. The 7470 is scalable to 12.8 Gb/s switch throughput.
The availability of the 7470 Multiservice Platform is guaranteed by many
features, including redundancy of the switching fabric, power supplies,
synchronization, control, the call processing complex and interfaces. The 7470
supports standard synchronization sources such as BITS, or G.703 2,048 kb/s
synchronization interfaces, line time synchronization from all interface cards,
as well as line trunking. All cards support hot insertion and removal.
Infrastructure
The 7470 supports point-to-point and point-to-multipoint connections for PVCs,
S-PVCs and SVCs. S-PVCs are permanent connections that use signaling resources
for routing and rerouting on failures. SVCs are established between end
subscribers on an as-needed basis through signaling.
The switch supports a full spectrum of fault management features including
connectivity verification, alarm surveillance, performance monitoring and test
connections. Complete network performance monitoring and fault management are
supported by the Alcatel 5620 Network Manager, formerly the 46020 Network
Manager*.
QoS guarantees
The 7470's traffic management abilities guarantee that quality of service (QoS)
objectives are achieved in complete fairness and isolation, while optimizing
switch resources and performance.
Traffic management and congestion control
The 7470 switch provides state-of-the-art traffic management capabilities
that allow service providers to optimize the use of bandwidth while maintaining
QoS levels for connections. The 7470 is fully compliant with the ATM Forum
Traffic Management Specification version 4.0 (TM4) suite of traffic management
and congestion control features. These features provide excellent traffic
performance, subscriber isolation and traffic shaping capability.
The 7470 has a per VC queuing/per VC accounting architecture supporting
explicit rate (ER), available bit rate (ABR) and unspecified bit rate plus (UBR+)
with minimum committed rate (MCR) guarantees. High levels of frame related
traffic throughput is maintained by using intelligent frame discard congestion
control mechanisms such as early packet discard (EPD) and partial packet discard
(PPD).
The 7470 supports ingress and egress traffic shaping. ABR flow control is
supported through ER, ABR and virtual source/virtual destination (VS/VD)
functions which provide superior ABR performance. Large scale, manageable ATM
networks are built using the Alcatel AdvantEDGE™ ABR tunneling and VP
aggregation features.
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