<div dir="ltr"><div><div>Hi Priyanka,<br></div>   There must be a packet drop from the client side while returning an ACK to the server. Again, please check the server has those ports "unblocked" by the firewall.<br><br></div>Thanks.<br></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div>Regards,<br></div>Nitish B.<br></div></div></div>
<br><div class="gmail_quote">On Thu, Mar 5, 2015 at 9:09 AM, Priyanka Naik <span dir="ltr"><<a href="mailto:ppnaik@cse.iitb.ac.in" target="_blank">ppnaik@cse.iitb.ac.in</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Sir,<br>
<br>
Yes. But it is not printing any message when it receives a connection. If I run iperf server on my desktop and run the client on a VM (with floating IP) on openstack it connects properly.<br>
<br>
Thanks,<br>
Priyanka<div class="HOEnZb"><div class="h5"><br>
<br>
On 03/04/2015 10:43 PM, Brian Haley wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On 03/04/2015 11:19 AM, ppnaik wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Sir,<br>
Yes.ping connectivity is there.the tcpdump on server shows the syn packets from<br>
the client. But the server does not reply syn/ack.<br>
</blockquote>
Then this doesn't look like a Neutron problem.  You need to figure out why the<br>
iperf server did not respond.  If you run it in the foreground it will print a<br>
message when it receives a connection request.<br>
<br>
-Brian<br>
<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On 2015-03-04 21:23, abhishek jain wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Have you checked ping connectivity between the VMs?<br>
On Mar 4, 2015 9:19 PM, "Brian Haley" <<a href="mailto:brian.haley@hp.com" target="_blank">brian.haley@hp.com</a>> wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Please keep replies on the list.<br>
<br>
I would suggest running tcpdump on the server side and see if the packet is<br>
making it to the stack then.  Perhaps there are other UFW rules dropping<br>
things?<br>
  You can just use something like 'telnet 192.168.1.42 5001' to verify that.<br>
<br>
-Brian<br>
<br>
On 03/04/2015 10:25 AM, ppnaik wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Sir,<br>
I added rule tcp 1 65535 but it still did not work.<br>
<br>
Thanks,<br>
<br>
Priyanka<br>
<br>
<br>
On 2015-03-04 20:29, Brian Haley wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Like Krishna asked, have you added a security group rule for TCP port<br>
</blockquote></blockquote>
5001?<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Otherwise ingress traffic on that port will be dropped.<br>
<br>
-Brian<br>
<br>
On 03/04/2015 05:45 AM, Priyanka Naik wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
<br>
Sorry my mistake . I was actually trying it for different ports and<br>
</blockquote></blockquote></blockquote>
copied the<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
earlier command on client VM. On client VM I am running<br>
<br>
iperf -c 192.168.1.42<br>
<br>
and on server<br>
<br>
iperf -s<br>
<br>
yes the server is listening on port 5001.<br>
<br>
netstat -anp | grep 5001<br>
(Not all processes could be identified, non-owned process info<br>
  will not be shown, you would have to be root to see it all.)<br>
tcp        0      0 <a href="http://0.0.0.0:5001" target="_blank">0.0.0.0:5001</a>            0.0.0.0:*<br>
</blockquote></blockquote></blockquote>
  LISTEN<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
20227/iperf<br>
<br>
Thanks,<br>
Priyanka<br>
<br>
On 03/04/2015 04:10 PM, nithish B wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Priyanka,<br>
    Sorry for that. My bad. I actaully meant to say, check if that<br>
</blockquote></blockquote></blockquote></blockquote>
client is<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
indeed listening on the port.<br>
<br>
And wait a minute, I didn't notice!!!<br>
<br>
Your output says:<br>
<br>
On iperf server VM<br>
<br>
|  iperf -s<br>
     ------------------------------<u></u>------------------------------<br>
     Server listening on TCP *port **5001*<br>
     TCP window size: 85.3 KByte (default)<br>
     ------------------------------<u></u>------------------------------<u></u>|<br>
<br>
On iperf client VM<br>
<br>
| iperf -c 192.168.1.42 *-p 8042* -i 1 -t 10<br>
<br>
|<br>
|Kindly let me know as to why are you using port 8042 in the client<br>
</blockquote></blockquote></blockquote></blockquote>
while<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
the server<br>
is listening on port 5001?<br>
|<br>
<br>
Regards,<br>
Nitish B.<br>
<br>
On Wed, Mar 4, 2015 at 3:58 PM, Priyanka Naik <<a href="mailto:ppnaik@cse.iitb.ac.in" target="_blank">ppnaik@cse.iitb.ac.in</a><br>
<mailto:<a href="mailto:ppnaik@cse.iitb.ac.in" target="_blank">ppnaik@cse.iitb.ac.in</a>><u></u>> wrote:<br>
<br>
     Hi Nitish,<br>
<br>
     I am able to ping the client VM(192.168.1.41) from the server<br>
     VM(192.168.1.42).<br>
<br>
     ping 192.168.1.41<br>
     PING 192.168.1.41 (192.168.1.41) 56(84) bytes of data.<br>
     64 bytes from 192.168.1.41 <<a href="http://192.168.1.41" target="_blank">http://192.168.1.41</a>>: icmp_req=1<br>
</blockquote></blockquote></blockquote></blockquote>
ttl=64<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
     time=1.02 ms<br>
     64 bytes from 192.168.1.41 <<a href="http://192.168.1.41" target="_blank">http://192.168.1.41</a>>: icmp_req=2<br>
</blockquote></blockquote></blockquote></blockquote>
ttl=64<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
     time=0.495 ms<br>
     64 bytes from 192.168.1.41 <<a href="http://192.168.1.41" target="_blank">http://192.168.1.41</a>>: icmp_req=3<br>
</blockquote></blockquote></blockquote></blockquote>
ttl=64<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
     time=0.598 ms<br>
     64 bytes from 192.168.1.41 <<a href="http://192.168.1.41" target="_blank">http://192.168.1.41</a>>: icmp_req=4<br>
</blockquote></blockquote></blockquote></blockquote>
ttl=64<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
     time=0.462 ms<br>
     ^C<br>
     --- 192.168.1.41 ping statistics ---<br>
     4 packets transmitted, 4 received, 0% packet loss, time 2999ms<br>
     rtt min/avg/max/mdev = 0.462/0.645/1.025/0.225 ms<br>
<br>
     I am sorry I did not understand pinging a specified port.<br>
<br>
     Thanks,<br>
<br>
     Priyanka<br>
<br>
<br>
     On 03/04/2015 03:49 PM, nithish B wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
     Hi Priyanka,<br>
         First check if you are able to ping the client VM from the<br>
</blockquote></blockquote></blockquote></blockquote></blockquote>
server VM<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
     on the specified port. If not, then there is an issue with the<br>
</blockquote></blockquote></blockquote></blockquote></blockquote>
network<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
     configuration.<br>
        Else, if you are able to ping on the specific port, then<br>
</blockquote></blockquote></blockquote></blockquote></blockquote>
there is some<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
     tunnelling issue and we can fix that!<br>
     Let me know this and we can proceed.<br>
<br>
<br>
     Regards,<br>
     Nitish B.<br>
<br>
     On Wed, Mar 4, 2015 at 3:15 PM, Priyanka Naik <<br>
</blockquote></blockquote></blockquote></blockquote></blockquote>
<a href="mailto:ppnaik@cse.iitb.ac.in" target="_blank">ppnaik@cse.iitb.ac.in</a><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
     <mailto:<a href="mailto:ppnaik@cse.iitb.ac.in" target="_blank">ppnaik@cse.iitb.ac.in</a>><u></u>> wrote:<br>
<br>
         Hi,<br>
<br>
         I have a multinode openstack juno setup. Iperf does not work<br>
</blockquote></blockquote></blockquote></blockquote></blockquote>
between<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
         VMs( on the same compute node asw ell as different compute<br>
</blockquote></blockquote></blockquote></blockquote></blockquote>
nodes)<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
         On iperf server VM<br>
<br>
         |  iperf -s<br>
<br>
</blockquote></blockquote></blockquote></blockquote></blockquote>
  ------------------------------<u></u>------------------------------<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
             Server listening on TCP port 5001<br>
             TCP window size: 85.3 KByte (default)<br>
<br>
</blockquote></blockquote></blockquote></blockquote></blockquote>
  ------------------------------<u></u>------------------------------<u></u>|<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
         On iperf client VM<br>
<br>
         | iperf -c 192.168.1.42 -p 8042 -i 1 -t 10|<br>
<br>
         The mtu of the VM interface is 1400. It does not work even<br>
</blockquote></blockquote></blockquote></blockquote></blockquote>
after<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
         increasing or decreasing this value.<br>
<br>
         |ifconfig<br>
         eth0      Link encap:Ethernet  HWaddr fa:16:3e:ac:70:99<br>
                   inet addr:192.168.1.41  Bcast:<a href="tel:192.168.1.255" value="+911921681255" target="_blank">192.168.1.255</a><br>
Mask:<a href="tel:255.255.255.0" value="+912552552550" target="_blank">255.255.255.0</a><br>
                   inet6 addr: fe80::f816:3eff:feac:7099/64 Scope:Link<br>
                   UP BROADCAST RUNNING MULTICAST  MTU:1400  Metric:1<br>
                   RX packets:5781941 errors:0 dropped:0 overruns:0<br>
</blockquote></blockquote></blockquote></blockquote></blockquote>
frame:0<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
                   TX packets:7096888 errors:0 dropped:0 overruns:0<br>
</blockquote></blockquote></blockquote></blockquote></blockquote>
carrier:0<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
                   collisions:0 txqueuelen:1000<br>
                   RX bytes:3028179379 (3.0 GB)  TX bytes:<a href="tel:3594331790" value="+913594331790" target="_blank">3594331790</a><br>
<tel:<a href="tel:3594331790" value="+913594331790" target="_blank">3594331790</a>> (3.5 GB)|<br>
<br>
         Please help me solve this issue.<br>
<br>
         Thanks,<br>
<br>
         Priyanka<br>
<br>
<br>
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