Re: [ovs-discuss] Extremely slow tcp/udp connection ovs 2.6.1 , 4.4.0-87 Ubuntu 14.04

2017-11-07 Thread kevin parrikar 
Thanks Guru.
For some reason openstack was creating tap interfaces on compute with an
MTU of 1500,where as for all other virtual/physical devices its 9000.After
changing mtu of tap ,everything is good now.Thanks alot

On Fri, Nov 3, 2017 at 11:30 PM, Guru Shetty  wrote:

>
>
> On 2 November 2017 at 13:07, kevin parrikar 
> wrote:
>
>> Hello All,
>> I am running OVS 2.6.1 on Ubuntu 14.04 kernel 4.4.0-87-generic with
>> Openstack Mitaka release with OVS firewall driver(contrack )
>>
>>
>> MTU is set to 9000 on both the physical nics and icmp is success with
>> ping -Mdo -s 8000 flag
>> how ever tcp and udp streams are too slow.
>>
>>
> If you are using tunnels, reduce the MTU of the inner packet by the amount
> of tunnel header.
>
>
>> TCP
>>
>> iperf -c 192.168.111.202
>> 
>> Client connecting to 192.168.111.202, TCP port 5001
>> TCP window size: 92.6 KByte (default)
>> 
>> [  3] local 192.168.111.199 port 44228 connected with 192.168.111.202
>> port 5001
>> [ ID] Interval   Transfer Bandwidth
>> [  3]  0.0-927.7 sec   175 KBytes  1.54 Kbits/sec
>>
>> UDP
>>
>> iperf -s -u
>> 
>> Server listening on UDP port 5001
>> Receiving 1470 byte datagrams
>> UDP buffer size:  122 KByte (default)
>> 
>> [  3] local 192.168.111.202 port 5001 connected with 192.168.111.199 port
>> 45028
>> [ ID] Interval   Transfer BandwidthJitter   Lost/Total
>> Datagrams
>> [  3]  0.0-10.0 sec  1.25 MBytes  1.05 Mbits/sec   0.086 ms0/  893
>> (0%)
>>
>> Any idea where could be the issue.
>>
>> Regards,
>> Kevin
>>
>>
>>
>> ___
>> discuss mailing list
>> disc...@openvswitch.org
>> https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
>>
>>
>
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Re: [ovs-discuss] Extremely slow tcp/udp connection ovs 2.6.1 , 4.4.0-87 Ubuntu 14.04

2017-11-03 Thread Guru Shetty 
On 2 November 2017 at 13:07, kevin parrikar 
wrote:

> Hello All,
> I am running OVS 2.6.1 on Ubuntu 14.04 kernel 4.4.0-87-generic with
> Openstack Mitaka release with OVS firewall driver(contrack )
>
>
> MTU is set to 9000 on both the physical nics and icmp is success with ping
> -Mdo -s 8000 flag
> how ever tcp and udp streams are too slow.
>
>
If you are using tunnels, reduce the MTU of the inner packet by the amount
of tunnel header.


> TCP
>
> iperf -c 192.168.111.202
> 
> Client connecting to 192.168.111.202, TCP port 5001
> TCP window size: 92.6 KByte (default)
> 
> [  3] local 192.168.111.199 port 44228 connected with 192.168.111.202 port
> 5001
> [ ID] Interval   Transfer Bandwidth
> [  3]  0.0-927.7 sec   175 KBytes  1.54 Kbits/sec
>
> UDP
>
> iperf -s -u
> 
> Server listening on UDP port 5001
> Receiving 1470 byte datagrams
> UDP buffer size:  122 KByte (default)
> 
> [  3] local 192.168.111.202 port 5001 connected with 192.168.111.199 port
> 45028
> [ ID] Interval   Transfer BandwidthJitter   Lost/Total
> Datagrams
> [  3]  0.0-10.0 sec  1.25 MBytes  1.05 Mbits/sec   0.086 ms0/  893 (0%)
>
> Any idea where could be the issue.
>
> Regards,
> Kevin
>
>
>
> ___
> discuss mailing list
> disc...@openvswitch.org
> https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
>
>
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[ovs-discuss] Extremely slow tcp/udp connection ovs 2.6.1 , 4.4.0-87 Ubuntu 14.04

2017-11-02 Thread kevin parrikar 
Hello All,
I am running OVS 2.6.1 on Ubuntu 14.04 kernel 4.4.0-87-generic with
Openstack Mitaka release with OVS firewall driver(contrack )


MTU is set to 9000 on both the physical nics and icmp is success with ping
-Mdo -s 8000 flag
how ever tcp and udp streams are too slow.

TCP

iperf -c 192.168.111.202

Client connecting to 192.168.111.202, TCP port 5001
TCP window size: 92.6 KByte (default)

[  3] local 192.168.111.199 port 44228 connected with 192.168.111.202 port
5001
[ ID] Interval   Transfer Bandwidth
[  3]  0.0-927.7 sec   175 KBytes  1.54 Kbits/sec

UDP

iperf -s -u

Server listening on UDP port 5001
Receiving 1470 byte datagrams
UDP buffer size:  122 KByte (default)

[  3] local 192.168.111.202 port 5001 connected with 192.168.111.199 port
45028
[ ID] Interval   Transfer BandwidthJitter   Lost/Total
Datagrams
[  3]  0.0-10.0 sec  1.25 MBytes  1.05 Mbits/sec   0.086 ms0/  893 (0%)

Any idea where could be the issue.

Regards,
Kevin
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