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Whitepaper: Testing Networked Applications

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OTN Signal Delay

Reproduce Delay and Impairments Experienced by Optical Transport Network Signals

• Test operability in the presence of delay
• Validat ethe handling of bit errors
• Detect and respond properly to LOS/LOF alarms

Anue OTN Signal Delay Network Emulators provide WAN simulation for testing transport solutions in a lab environment. OTN Signal Delay Network Emulators can reproduce the delay and impairments experienced by Optical Transport Network signals across MANs and WANs.

 Anue OTN Signal Delay Network Emulators:

• Run 100% line rate traffic 2.666Mbps and 10.709Gbps
• Can be automated or operated interactively, locally or remotely
• Provide accurate WAN simulation down to one-bit time increments
• Enable delay of 250ms or more at all bit rates

Maui and Hawaii Network Emulation Harware Platform

The OTN Signal Network Emulation tool is available on a 2U rack-mount chassis that supports up to 7 software loads. There are two platforms available:

• The Maui platform supports up to four blades and data rates up to 2.6Gbps.
• The Hawaii platform supports up to two blades and data rates up to 11.3Gbps.

Supported Rates

• OTU1 (2.666Mbps)
  
• OTU2 (10.709Gbps)
  

Delay

• Insert up to 250ms delay at OTU1 and OTU2 rates.
• Introduce delay with no pointer movements and no modification of overhead or payload bytes.
• Increase maximum delay with a Delay Doubler and Quadrupler (even greater delay amounts are available upon request)

Error

• Set error rates from 10-12 to 10-2.
• Inject errors at a fixed rate (periodic) or randomly with a Uniform, Poisson or Gaussian distribution.
• Error 1 bit, 32 contiguous bits or a 32-bit user-defined error pattern.
• Simulate loss of signal, loss of frame and/or squelch mode under user or program control.

Operation

• Configure via a front panel LCD control for standalone operation
• Configure remotely via an Ethernet control port
• Interactive: Browser-based GUI with save/load capability
• Automated: Powerful TCL script library

SONET/SDH Signal Delay Software Loads for the Maui and Hawaii Platform

Note: Up to 7 software loads for different protocols (SONET, OTN, Ethernet, Fibre Channel, CPRI) can be combined on the same system. A combo WAN Simulation system can easily switch between different features, data rates and protocols, simplifying testing and leveraging your investment. See Network Emulator Combo products