flow monitor ftp more flows than expected

zhao yang

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Sep 23, 2016, 10:34:04 AM9/23/16

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The output is shown below:

Operator A: LTE; number of cells 1; number of UEs 2

Operator B: Wi-Fi; number of cells 1; number of UEs 2

LTE duty cycle: requested 1, actual 1, ABS pattern 0000000000000000000000000000000000000000

Total txop duration: 0 seconds.

Total phy arrivals duration: 0 seconds.

--------monitorA----------

Flow 1 (1.0.0.2:49153 -> 7.0.0.2:50000) proto UDP

Tx Packets: 354

Tx Bytes: 521912

TxOffered: 1.39177 Mbps

Rx Bytes: 9740

Throughput: 16.8221 Mbps

Mean delay: 3.77486 ms

Mean jitter: 0.142857 ms

Rx Packets: 7

Flow 2 (1.0.0.2:49154 -> 7.0.0.3:50000) proto UDP

Tx Packets: 354

Tx Bytes: 521912

TxOffered: 1.39177 Mbps

Rx Bytes: 9740

Throughput: 13.2878 Mbps

Mean delay: 4.86403 ms

Mean jitter: 0.285714 ms

Rx Packets: 7

Flow 3 (1.0.0.2:49155 -> 7.0.0.2:50000) proto UDP

Tx Packets: 354

Tx Bytes: 521912

TxOffered: 1.39177 Mbps

Rx Bytes: 18596

Throughput: 28.4039 Mbps

Mean delay: 3.85298 ms

Mean jitter: 0.153846 ms

Rx Packets: 13

Konstantinos

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Sep 23, 2016, 10:46:05 AM9/23/16

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Hi,

Not clear what the error is if we do not know the expected one/system model etc.

From the output it looks like you have TWO applications at the node with IP 1.0.0.2 to node 7.0.0.2.

This could be just a programming error in your scenario.

Just a note, normally FTP traffic is using TCP, not UDP to transfer, so do not call it FTP if you are using UDP!

Regards,

K.

zhao yang

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Sep 23, 2016, 10:19:16 PM9/23/16

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Thanks, I ran the laa-wifi-indoor.cc. And operator A is configured to LTE, while operator B is configured to WIFI. Ue num per cell is 2, and each operator has 1 cell. The transport is FTP. And it showed the output.

在 2016年9月23日星期五 UTC+8下午10:46:05，Konstantinos写道：

zhao yang

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Sep 23, 2016, 10:39:34 PM9/23/16

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I guess since the FtpTransferHelper can not set local port. So each file transfer will send a file at a new port. Thus a new flow will be generated for each new file transfer while the client app number is not incremented.