TCP-FIN, TCP-FIN-ACK Messages handling in blaster.

[DharmendraShetty]

Problem Description:

TCP-FIN, TCP-FIN-ACK Messages handling in blaster is not in the expected sequence.

Solution:

If user triggers "stop tcp stream/flow"

• traffic stream should be stopped
• tcp-fin should be sent by end-A(blaster) to end-B(blaster)
• on receiving tcp-fin, tcp-fin-ack should be sent by end-B(blaster) to end-A(blaster)
• on receving tcp-fin-ack, tcp-fin-ack should be sent by end-A(blaster) to end-B(blaster)

Expectation:

It helps to test TCP Flows ageing in our CGNAT test coverage with graciously stopping TCP Flows.

Thanks,
Dharmendra