IPNetSim™ offers various impairment simulations for testing real-time IP network applications. It can simulate various network conditions such as network latency, network delay variation (jitter), attenuation, packet errors, bit errors and other network impairments.

• RTP Impairment Generation with PacketGen™

  Automatic generation of impairments over the RTP for any (or all) established calls. The impairments that can be generated include
  
  

  • Latency: Fixed, Uniform, Nominal
  • Packet Loss: Periodic, Random, Burst (burst probability and burst size)
  • Packet Effects: Out of order, Duplicate Packets

• RTP Impairment Generation with RTP Toolbox™

  Users can manually introduce impairments and transmit on the RTP sessions. This includes introducing fixed latency, uniform/normal distributed latency, periodic/random/burst packet loss, out-of-order packets, and duplicate packets.

A variety of TDM simulation interface, delay, and error impairment options are provided, including OC-3 / STM-1, STS-1, T3, T1 / E1, 4 Wire Analog, and Two Wire Analog. Scripted operation make it easy to control errors - random and burst.

GL’s LinkSim™ simulates a variety of communications links, inserting delays and inserting errors such that the user can determine what effects these impairments will have on their systems.

HDLC frame impairment can be introduced at T1 and E1 rates.

GL offers test tools to analyze and simulate satellite channels across various interfaces. These include Analog 2-Wire, Analog 4-Wire, Ethernet, T1, E1, IP, T3, E3, OC3 / STM1, and OC12 / STM4. The applications include:

• Testing GSM backhaul over satellite
• BER testing across all satellite gateway interfaces
• Satellite delay and error simulation
• Voice quality testing
• Round-trip and one way delay measurement
• Echo simulation and echo cancellation testing