Open Stack

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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