Hi Andrija,

Thank for your anwser ...

1) My Cloudstack is 4.13

2) Can I mix a version of xen 6.5 and xen 7 in the same cluster? (I think I cannot move a VM from one cluster to another)

3) 200.13.xxx.xxx est un de mes serveurs sur mon réseau physique

I think the problem comes from my service offerings

I keep looking ...

But I think upgrading my Xen servers from 6.5 to 7 is a good idea.

Point 2 is important !

Regards,

Olivier

Le 23/04/2020 à 16:02, Andrija Panic a écrit :
Hi Olivier,

Upgrade to 4.13 should not be a problem here. I would suggest:

- checking traffic shaping on XenServer side - to confirm what is/is not in place (we don't know your network offerings/compute offerings network rates and such) - Confirm VM/drivers used inside VMs are all up to date (6.5 is an ancient thing, not supported any more in ACS 4.14 that will be out soon)

You are doing:   iperf3 -c 200.13.XXX.XXX -p5001

Why are you connecting to the IP of the VR? What kind of testing is this supposed to be/show what?


Why not starting iperf server on Centos 7 and connect to it from Windows 2012 (and the other way around)? This traffic is NOT going over the virtual router, but just via the same "network" on XS.
I'll try ok

Alternatively, you can deploy VPC (multiple isolated networks behind a VR) - and have VM1 in network1, VM2 in network2 - and do iperf between them (traffic router via VR) - here keep in mind even if your VM's NIC are 1Gbps, but your VR NICs are 100 Mbps, you will be limited to the slowest nic in the whole path/chain - 100 Mbps.
OK

Regards,
Andrija
-

On Thu, 23 Apr 2020 at 20:34, Olivier Guin <olivier.gui...@gmail.com <mailto:olivier.gui...@gmail.com>> wrote:

    Hello,

    Some news :

    from VM to SRV :

    [root@centos7 centos]# iperf3 -c 200.13.XXX.XXX -p5001
    Connecting to host 200.13.XXX.XXX, port 5001
    [  4] local 10.0.1.42 port 56190 connected to 200.13.XXX.XXX port 5001
    [ ID] Interval           Transfer     Bandwidth Retr  Cwnd
    [  4]   0.00-1.00   sec  12.9 MBytes   108 Mbits/sec 77   55.1 KBytes
    [  4]   1.00-2.00   sec  11.9 MBytes   100 Mbits/sec 51   45.2 KBytes
    [  4]   2.00-3.00   sec  9.96 MBytes  83.6 Mbits/sec 36   28.3 KBytes
    [  4]   3.00-4.00   sec  9.37 MBytes  78.6 Mbits/sec 33   25.5 KBytes
    [  4]   4.00-5.00   sec  11.1 MBytes  93.5 Mbits/sec 24   50.9 KBytes
    [  4]   5.00-6.00   sec  11.2 MBytes  94.2 Mbits/sec 24   82.0 KBytes
    [  4]   6.00-7.07   sec  12.9 MBytes   101 Mbits/sec 38    143 KBytes
    [  4]   7.07-8.07   sec  9.03 MBytes  75.2 Mbits/sec 13    123 KBytes
    [  4]   8.07-9.00   sec  12.5 MBytes   113 Mbits/sec 24    103 KBytes
    [  4]   9.00-10.06  sec  13.6 MBytes   107 Mbits/sec 98    140 KBytes
    - - - - - - - - - - - - - - - - - - - - - - - - -
    [ ID] Interval           Transfer     Bandwidth Retr
    [  4]   0.00-10.06  sec   114 MBytes  95.4 Mbits/sec
    418             sender
    [  4]   0.00-10.06  sec   114 MBytes  95.4
    Mbits/sec                  receiver

    from SRV to VM :

    [root@centos7 centos]# iperf3 -s -p 5001
    -----------------------------------------------------------
    Server listening on 5001
    -----------------------------------------------------------
    Accepted connection from 200.13.XXX.XXX, port 48782
    [  5] local 10.0.1.42 port 5001 connected to 200.13.XXX.XXX port 48784
    [ ID] Interval           Transfer     Bandwidth
    [  5]   0.00-1.00   sec  7.95 MBytes  66.7 Mbits/sec
    [  5]   1.00-2.00   sec  10.6 MBytes  88.7 Mbits/sec
    [  5]   2.00-3.00   sec  0.00 Bytes  0.00 bits/sec
    [  5]   3.00-4.00   sec  0.00 Bytes  0.00 bits/sec
    [  5]   4.00-5.00   sec  0.00 Bytes  0.00 bits/sec
    [  5]   5.00-6.00   sec  0.00 Bytes  0.00 bits/sec
    [  5]   6.00-7.00   sec  0.00 Bytes  0.00 bits/sec
    [  5]   7.00-8.00   sec  0.00 Bytes  0.00 bits/sec
    [  5]   8.00-9.00   sec  0.00 Bytes  0.00 bits/sec
    [  5]   9.00-10.00  sec  0.00 Bytes  0.00 bits/sec
    [  5]  10.00-11.00  sec  0.00 Bytes  0.00 bits/sec
    [  5]  11.00-11.52  sec  0.00 Bytes  0.00 bits/sec
    - - - - - - - - - - - - - - - - - - - - - - - - -
    [ ID] Interval           Transfer     Bandwidth
    [  5]   0.00-11.52  sec  0.00 Bytes  0.00
    bits/sec                  sender
    [  5]   0.00-11.52  sec  18.5 MBytes  13.5
    Mbits/sec                  receiver

    Regards,

    Olivier




--

Andrija Panić

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