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All-Optical Switching
The LambdaNode 2000 is the industry’s only integrated all-optical
switch. Unlike other “optical” switches that have to convert
optical signals into electrical signals and then back to optical
format for transport, the LambdaNode 2000 executes all switching
in native optical format. This “all-optical” approach eliminates
the requirement for organizations to maintain expensive OEO
conversion equipment on their networks. What does this mean
for carrier and enterprise customers? Lower signal delays, reduced
cost, higher performance, improved reliability, and enhanced
manageability. The LambdaNode 2000 utilizes 3-D MEMS (micro-electro-mechanical-systems)
for reliable, rapid switch time and low signal loss for effective
optical switching. 3-D MEMS have met the rigorous Telcordia
GR-63 design standard that protects systems against extreme
temperature, humidity, vibration, etc., and have shock tested
to over 2,000 Gs (G for gravitation unit of measure).
Integrated DWDM
Built for ring, mesh, and ring/mesh metro and regional networks,
the LambdaNode 2000 fully integrates Dense Wavelength Division
Multiplexing (DWDM) technology, which multiplies fiber capacity
and allows diverse packet formats (SONET/SDH, IP, ATM, etc.)
to travel together at the same time on one optical fiber. This
integrated functionality eliminates the need for expensive transponders
to convert signals back to 1310nm wavelengths and the associated
optical switch ports, which are typically deployed in metro
and regional networks.
Express Traffic
The LambdaNode 2000 supports optical circuits of up to 1,000
kilometers without electronic regeneration. More than 50 percent
of network traffic does not need to stop at each node in the
network, however traditional switches require all signals to
stop in order to route them to their next location. Because
it is all-optical and does not require signal conversion, the
LambdaNode 2000 bands wavelengths, allowing network traffic
to take the “express” route – traveling at the speed of light
to its final destination.
GMPLS Advantages
Protocol agnostic, the LambdaNode 2000 is compatible with GMPLS
(Generalized Multi-Protocol Label Switching), a standard that
enables a broad suite of new communications applications. GMPLS
provides enhancements to the Multi-Protocol Label Switching
(MPLS) standard, supporting optical networks for time, wavelength,
and space/packet switching. GMPLS adoption improves switching
and photonic networking device performance, providing service
providers with a scalable, cost-effective means to automate
network management and facilitate the deployment of new services.
Multiple Degrees of Flexibility
In a typical metro network, DWDM terminals reside where the
fiber ends and are interconnected by a manual fiber patch panel
or an OEO junction switch. While most OEO switches enable traffic
flow through two locations, the LambdaNode 2000 enables network
traffic to flow through seven interfaces – maximizing network
efficiency. Because the LambdaNode 2000 integrates an all-optical
switch with DWDM, it allows network operators to interconnect
up to three metro rings without the need to deploy an OEO switch
at the junction of each DWDM terminal . It also readily supports
a migration path to mesh topology. This minimizes redundancy
inherent in traditional OEO networks – eliminating the need
for excess equipment, reducing cost, and maximizing network
performance.
Mesh Networking
Data networks can run logical mesh topology overlays on transport
ring architectures, but burgeoning traffic demands on IP routers
over-run threaded multi-ring transport networks. As such, survivability
is a growing challenge. Mesh networks can rapidly scale to meet
the demands of these networks and offer the necessary survivability.
The LambdaNode 2000 is designed to support physical mesh topology
to meet the growing transport needs of high-speed packet networks
and offer the robust survivability required on these converged
networks.
The LambdaNode family is also fully integrated with the LambdaCreate network management software suite.
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The LambdaNode 2000
All-Optical Switch |
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