packets drops statistic when size is equal to MTU = 100%

[Aleksei Stepanov]

Steps to reproduce:
            1. Revert snapshot with neutron cluster
            2. Create instance, assign floating IP to it
            3. Send ICMP packets from controller to instance with 1500 bytes
            4. If at least 7 responses on 10 requests are received
               assume test is passed
Actual result:
['PING 10.109.3.129 (10.109.3.129) 1472(1500) bytes of data.\n', '\n', '--- 10.109.3.129 ping statistics ---\n', '10 packets transmitted, 0 received, 100% packet loss, time 9071ms\n', '\n']
Expected results:
Test pass

iso: 9.0 build 161

[Bug Checker Bot (bug-checker)]

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[Oleksiy Molchanov (omolchanov)]

What ISO #?

[Alex Schultz (alex-schultz)]

This appears to have been on an environment with vxlan configured meaning you can't send something of size 1500 because some of that would be reserved for the tunneling.