Bug 2752

Summary: Data is sent twice on BulkSendApplication when Server start times are offset
Product: ns-3 Reporter: Varun Reddy <varunamarreddy>
Component: internetAssignee: Tommaso Pecorella <tommaso.pecorella>
Status: RESOLVED INVALID    
Severity: normal CC: ns-bugs
Priority: P3    
Version: ns-3-dev   
Hardware: All   
OS: All   
Attachments: Data is sent twice on BulkSendApplication
Data is sent twice on BulkSendApplication

Description Varun Reddy 2017-06-05 10:39:59 UTC 
Created attachment 2866 [details]
Data is sent twice on BulkSendApplication

There are a certain number of wifi stations sending 1000 bytes to a single AP. I changed the application (BulkSendApplication) start times on the stations, so that they are 0.1 seconds apart (Station 1 sends at 2s, Station 2 at 2.1s, Station 3 at 2.2s and so on). 

However this resulted in the data (1000 bytes) being sent twice. For 10 stations, the flow monitor shows a total 40 flows (which should be 20 ideally). I verified this anomaly with the PCAP file as well. The data is sent twice by all the stations to the AP. 

Thanks,
Varun
Comment 1 Varun Reddy 2017-06-05 10:44:41 UTC 
Created attachment 2867 [details]
Data is sent twice on BulkSendApplication