Thank you for all the advice. 

The reason  for the issue was the physical switch like you said!! 

The issue is now fixed. 

Thanks 😊 


On Tue, 22 Jan 2019, 10:04 Dominik Holler <dholler@redhat.com wrote:
On Tue, 22 Jan 2019 07:33:19 -0000
"ada per" <adaper3@gmail.com> wrote:

> Thank you i try pinging Host1 from Host 2 with the following results:
> On a logical network Host1 can ping host2 but while on  a VLAN host 1 cannot ping host2.
>
> The hosts are physically connected via a switch.

Can you please check if the switch allows VLANs on the used ports?

Alternatively, you can connect the VMs via
external networks without subnets, e.g. provided by preconfigured
ovirt-provider-ovn, to the router VM.

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