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Calculate the OSPFv2 convergence time using the routing convergence wizard.

DUT gives packet drops even at 10% and sequencer always fails during the test.

• At 10% line rate, sequencer fails at “Setup Routing Convergence” step.

• At 100% line rate, sequencer fails at “Wait for Data Plane Samples” step.
  

Questions

1. Does traffic need to be sent at 100% line rate for the Wizard to work?

2. Is the convergence time always calculated based on dropped frame counts? 

3. Should there be no drops before the event occurs?
   
   

• In Rate based convergence, the test measures expected RX rate on the primary port before convergence.
• Then after convergence trigger event, the traffic rate on backup port is  expected to reach within 95% of rate observed on the Primary port after the start of the test.
• Then the test is considered converged.

• Is there packet loss at the start of the test?

1. Any rate, not only100% can be used but  the lower the traffic rate the longer it will take to measure convergence.
2. Convergence is calculated based on rate reaching expected rate  RFC 6413. 
3. There should be no drops during rate sampling at the start of the test.

• This is not based on rate or loss.
• This is based on trigger event timestamp and arrival time of each stream.