Network emulation specifications
The following impairments and constraints can be configured in the flow of an Advanced Test.
In this topic:
WAN specifications
Latency |
Fixed Latency |
0-8,000 ms (Granularity = 1 ms) |
Uniform Distributed Latency (minimum/maximum): |
0-8,000 ms (Granularity = 1 ms) |
Latency change limit |
0-4,000 ms (Granularity = 1 ms) |
Normal Distributed Latency: |
Average |
0-8,000 ms (Granularity = 1 ms) |
Standard Deviation |
0-8,000 ms (Granularity = 1 ms) |
Linear Latency (minimum/maximum): |
0-8,000 ms (Granularity = 1 ms) |
Cycle Duration |
1-65,535 sec |
Packet Loss |
Periodic Loss - Lose every nth packet |
n=2-65,535 |
Random Loss |
0-10% (Granularity = 0.01%) |
Burst Loss: |
Probability |
0.01-90% (Granularity = 0.01%) |
Burst Size |
1-65,534 packets |
Gilbert-Elliot Loss Two State Loss Model: |
Loss Probability |
0.0-100% (Granularity = 0.01%) |
Transition to Other State |
0.0-99.99% (Granularity = 0.01%) |
Packet Effects |
Out Of Order: |
Probability |
1-50% |
Offset |
1-64 packets |
Packet Duplication: |
Probability |
1-99% |
Number of duplicates |
1-20 packets |
Fragmentation: |
Probability |
1-99% |
MTU |
64-1,460 bytes |
DF Policy |
- Ignore DF and fragment packet.
- Discard packet and generate ICMP message.
- Discard packet and do not send a message.
|
Link Faults |
Bit Error: |
Frequency |
1/102 – 1/1012 bits |
Number of Toggled Bits |
1-500 bits |
Disconnection: |
Average Frequency |
3-300 sec |
Disconnection Time |
10-30,000 ms |
Congestion: |
Frequency |
1-300 sec |
Time span |
10-65,535 ms |
Event Properties: |
Fixed Latency |
0-8000 ms |
Packet Loss Probability |
0%-90% (Granularity = 0.01%) |
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Gateway specifications
Bandwidth Settings |
|
Symmetric Bandwidth |
1-10 GB |
Asymmetric Bandwidth: |
Uplink/Downlink |
1-10 GB |
Packet Overhead Length |
0-1000 bytes |
Queue Limitations |
Queue Size |
2-65,535 KB |
Drop Mode: |
Drop Tail or RED |
RED Queue (Minimum/Maximum Threshold) |
2-65,535 KB |
Fill Mode (Queue Size Policy) |
Byte Mode or Packet Mode |
Packet Overhead |
- Ethernet (Add 18 bytes to each packet)
- PPP (Add 9 bytes to each packet)
|
Traffic Type Support |
IPv4 |
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