[openstack-dev] [neutron] performance issue between virtual networks

Kim-Norman Sahm kisahm at t-online.de
Thu Dec 28 08:12:12 UTC 2017


No, its a ha router (active/backup).
Am Mittwoch, den 27.12.2017, 08:06 -0800 schrieb Armando M.:
> 
> 
> On 27 December 2017 at 05:39, Kim-Norman Sahm <kisahm at t-online.de>
> wrote:
> > Hi,
> > 
> > i've detected a performance issue by accessing an floating ip in a
> > different openstack network (same tenant).
> > 
> > example:
> > i have one tenant with two internal networks.
> > each network has its own vrouter which is connectet to the extnet.
> > the physical network infrastructure is 10Gbit/s.
> > 
> >          networkA   
> >    VM1 ------|               extnet
> >              |----|vrouter1|----|
> >    VM2 ------|                  |
> >                                 |---ext
> >          networkB               |
> >    VM3 ------|                  |
> >              |----|vrouter2|----|
> >    VM4 ------|
> > 
> > VM1 -> VM2      ~8,6Gbit/s
> > VM3 -> VM4      ~8,6GBit/s
> > VM1 -> vrouter1 ~8.6GBit/s
> > VM4 -> vrouter2 ~8,6GBit/s
> > vrouter1 -> vrouter2 ~8,6Gbits
> > VM1 -> VM4      ~2,5GBit/s
> > VM1 -> vrouter2 ~2,5Gbit/s
> > 
> > detected with iperf3
> > it's an openstack newton environment with openvswitch 2.6.1
> > VXLAN mtu is 8950 and 9000 for physical interfaces
> > 
> > does anybody has an idea what could be the cause of the performance
> > issue?
> Is the router distributed?
>  
> > 
> > Best regards
> > Kim
> > 
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