Comment 6 for bug 1851414

Hi Elio,

I checked your environment and find you are using OVS-DPDK. But you haven't configured flavor with property “hw:mem_page_size=large”. You need to add this property as below:
openstack flavor set $i --property hw:mem_page_size=large

Your flavor is listed below:
openstack flavor show m1.medium
+----------------------------+--------------------------------------+
| Field | Value |
+----------------------------+--------------------------------------+
| OS-FLV-DISABLED:disabled | False |
| OS-FLV-EXT-DATA:ephemeral | 0 |
| access_project_ids | None |
| disk | 40 |
| id | fdcf63e8-4ee5-4993-855d-52968354d6e8 |
| name | m1.medium |
| os-flavor-access:is_public | True |
| properties | |
| ram | 4096 |
| rxtx_factor | 1.0 |
| swap | |
| vcpus | 2 |
+----------------------------+--------------------------------------+

I have added this property to m1.medium on your environment and create vm1. vm1 gets IP successfully and can ping vm1 in dhcp namespace.