01-13-2016 04:02 PM
Getting some poor iperf results as shown below. Only in one direction. Doesn't matter what network segment I target in that site.
C:\Temp>iperf.exe -c x.x.64.x -d
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 64.0 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to x.x.64.x, TCP port 5001
TCP window size: 64.0 KByte (default)
------------------------------------------------------------
[172] local x.x.0.x port 52641 connected with x.x.64.x port 5001
[196] local x.x.0.x port 5001 connected with x.x.64.x port 56606
[ ID] Interval Transfer Bandwidth
[196] 0.0-10.0 sec 1.08 GBytes 927 Mbits/sec
[172] 0.0-10.1 sec 5.30 MBytes 4.40 Mbits/sec
Trace is clean.
Any thoughts on res?
01-13-2016 06:13 PM
Duplex mismtach.
01-20-2016 08:25 PM
01-20-2016 08:26 PM
What are the two devices you are running iperf on?
01-20-2016 08:28 PM
01-20-2016 08:35 PM
What is a NID?
Here are my thoughts for cracking this problem (divide and conquer):
Try and get to the point where you have the minimum amount of active network kit between the two notebooks to cause the problem to happen (you may have to move the first notebook to get to this minimal problem issue). Then tell me what each of these devices is and how it connects to the next device.
01-20-2016 09:19 PM
01-20-2016 09:19 PM
Any chance you could re-format that last message? Very hard to read.
01-21-2016 11:47 AM
01-21-2016 11:47 AM
When you say same segment test, what exactly are the two test points? 4500 to affected site?
01-21-2016 11:54 AM
01-21-2016 11:57 AM
This is starting to smell like a WAN issue ...
So we can rule out the 4507 and the connection through to the server.
The performance issue is only happening on the WAN portion of this test now, correct?
01-21-2016 12:26 PM
01-21-2016 12:29 PM
It just has to be a WAN issue.
A horrible test you could do, which you wont want to do, but will prove it. Plug sites 'A' and 'B' WAN tails directly into a notebook and run iperf. This way there is none of your kit in the picture and only the WAN.
If this fails (as expected) it rules out everything except the WAN. It also means the WAN provider can refute it. There is nothing else it could be.
01-20-2016 08:35 PM
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