User guide

Multi Protocol Test Set 107
9 Ethernet BERT Test
The Bit Error Rate Test (BERT) measures the level of transmission
impairment on a communication channel. Specific test patterns are sent
through Ethernet frames and then analyzed to detect data integrity
problem (bit error).
The BERT test case offers several options:
³ Traffic configuration:
³ Ethernet or Ethernet/IPv4/UDP (when the IPV4 version is selected)
Ethernet or Ethernet/IPv6/UDP (when the IPv6 version is selected)
³ Frame size
³ Transmit rate
³ Test pattern
³ Capability to change dynamically the rate and frame size while the test
is running.
³ Injection of impairments on the transmitted traffic (bit errors).
³ Capability to reset all results/statistics while the test is running.
³ Errors/Alarms monitoring.
³ Capability to measure the service disruption time based on no traffic
received (No Traffic mode).
³ Global verdict based on bit error count & SDT or bit error rate & SDT.
³ Capability to configure and view the list of recorded events while a test
case was running, including threshold crossing events.
Although the AXS-200/855 Multi Protocol Test Set has a single port, both
unidirectional and bidirectional BERT testing can be performed.