This is a clone of issue OCPBUGS-33799. The following is the description of the original issue:
—
Description of problem:
 2 pods, each with a VF from the same PF. However, pings between them are failing.
several VFs have the same MAC address.

Version-Release number of selected component (if applicable):

4.16.0-rc.1

How reproducible:

100%

Steps to Reproduce:
1. Create  SR-IOV configuration to create 2 VFs on the same PF
2. Create  2 pods with VFs
3. Run ping between them
Actual results:

no ping

Expected results:

ping works

Additional info:
6: ens5f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc mq state UP mode DEFAULT group default qlen 1000 link/ether 50:7c:6f:4a:fd:aa brd ff:ff:ff:ff:ff:ff vf 0 link/ether 20:04:0f:f1:88:01 brd ff:ff:ff:ff:ff:ff, spoof checking on, link-state auto, trust off vf 1 link/ether 20:04:0f:f1:88:03 brd ff:ff:ff:ff:ff:ff, spoof checking on, link-state auto, trust off vf 2 link/ether 20:04:0f:f1:88:03 brd ff:ff:ff:ff:ff:ff, spoof checking on, link-state auto, trust off vf 3 link/ether 20:04:0f:f1:88:01 brd ff:ff:ff:ff:ff:ff, spoof checking on, link-state auto, trust off
 
 
7: ens5f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc mq state UP mode DEFAULT group default qlen 1000 link/ether 50:7c:6f:4a:fd:ab brd ff:ff:ff:ff:ff:ff vf 0 link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking on, link-state auto, trust off vf 1 link/ether 20:04:0f:f1:88:01 brd ff:ff:ff:ff:ff:ff, spoof checking on, link-state auto, trust off
 

pod1:
579: net1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 20:04:0f:f1:88:03 brd ff:ff:ff:ff:ff:ff altname enp134s0f0v1 inet 192.168.100.1/24 brd 192.168.100.255 scope global net1 valid_lft forever preferred_lft forever inet6 fe80::2204:fff:fef1:8803/64 scope link valid_lft forever preferred_lft forever
 
pod2:
554: net1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 20:04:0f:f1:88:01 brd ff:ff:ff:ff:ff:ff altname enp134s0f0v0 inet 192.168.100.2/24 brd 192.168.100.255 scope global net1 valid_lft forever preferred_lft forever inet6 fe80::2204:fff:fef1:8801/64 scope link valid_lft forever preferred_lft forever
 
ping:
sh-4.4$ ping 192.168.100.1 PING 192.168.100.1 (192.168.100.1) 56(84) bytes of data. ^C — 192.168.100.1 ping statistics — 3 packets transmitted, 0 received, 100% packet loss, time 2048ms