Hi Neeraj,
Iperf can be used to calculate the Throughput on both the UL (UpLink) and DL
(DownLink).
By default the Client will have the UL and the Server will have the DL.
In your case, the ID [3] is UL.
Regards,
Anand
_____
From: Neeraj Poojary [mailto:npooj...@nextwave.com]
Sent: Wednesday, December 17, 2008 12:26 AM
To: iperf-users@lists.sourceforge.net
Subject: [Iperf-users] UDP measurements: What is [ID]?
I'm an iperf newbie. I'm trying to measure UDP bandwidth between for data
going through hosts A->B->C. The client is running on A and generates data
for B. B is set up (using iptables) to nat the data to C. The server is
running on C. The server reports data from what looks like two (or more)
streams with different 'ID's, e.g. IDs [ 3] and [ 6] below. The stream for
ID 3 reports 8 Mbps (which is what I expect) while ID 6 reports 0 bandwidth.
What does the ID signify? I have a single client running. Thanks for your
help.
-Neeraj
[ 3] 914.0-916.0 sec 1.91 MBytes 7.99 Mbits/sec 0.381 ms 0/ 1388 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 3] 916.0-918.0 sec 1.91 MBytes 8.00 Mbits/sec 0.609 ms 0/ 1389 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 3] 918.0-920.0 sec 1.91 MBytes 8.01 Mbits/sec 0.467 ms 0/ 1390 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 3] 920.0-922.0 sec 1.90 MBytes 7.99 Mbits/sec 0.404 ms 0/ 1387 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 3] 922.0-924.0 sec 1.91 MBytes 8.01 Mbits/sec 0.791 ms 0/ 1390 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 3] 924.0-926.0 sec 1.91 MBytes 8.02 Mbits/sec 0.421 ms 0/ 1393 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 3] 926.0-928.0 sec 1.90 MBytes 7.99 Mbits/sec 0.542 ms 0/ 1387 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 3] 928.0-930.0 sec 1.91 MBytes 8.01 Mbits/sec 0.349 ms 0/ 1390 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 3] 930.0-932.0 sec 1.91 MBytes 8.00 Mbits/sec 0.491 ms 0/ 1389 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 3] 932.0-934.0 sec 1.90 MBytes 7.98 Mbits/sec 0.566 ms 0/ 1385 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 3] 934.0-936.0 sec 1.91 MBytes 8.01 Mbits/sec 0.441 ms 0/ 1391 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 6] 880.0-882.0 sec 32.3 KBytes 132 Kbits/sec 14.245 ms 4638/ 4661
(1e+02%)
[ 6] 880.0-882.0 sec 22 datagrams received out-of-order
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 6] 882.0-884.0 sec 0.00 Bytes 0.00 bits/sec 14.245 ms 0/ 0
(nan%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 6] 884.0-886.0 sec 0.00 Bytes 0.00 bits/sec 14.245 ms 0/ 0
(nan%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 6] 886.0-888.0 sec 0.00 Bytes 0.00 bits/sec 14.245 ms 0/ 0
(nan%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 6] 888.0-890.0 sec 0.00 Bytes 0.00 bits/sec 14.245 ms 0/ 0
(nan%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 6] 890.0-892.0 sec 0.00 Bytes 0.00 bits/sec 14.245 ms 0/ 0
(nan%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 6] 892.0-894.0 sec 0.00 Bytes 0.00 bits/sec 14.245 ms 0/ 0
(nan%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 6] 894.0-896.0 sec 0.00 Bytes 0.00 bits/sec 14.245 ms 0/ 0
(nan%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 6] 896.0-898.0 sec 0.00 Bytes 0.00 bits/sec 14.245 ms 0/ 0
(nan%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 6] 898.0-900.0 sec 0.00 Bytes 0.00 bits/sec 14.245 ms 0/ 0
(nan%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 6] 900.0-902.0 sec 0.00 Bytes 0.00 bits/sec 14.245 ms 0/ 0
(nan%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 6] 902.0-904.0 sec 0.00 Bytes 0.00 bits/sec 14.245 ms 0/ 0
(nan%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 6] 904.0-906.0 sec 0.00 Bytes 0.00 bits/sec 14.245 ms 0/ 0
(nan%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total
Datagrams
[ 6] 906.0-908.0 sec 0.00 Bytes 0.00 bits/sec 14.245 ms 0/ 0
(nan%)
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