Description of problem:
https://github.com/ipxe/ipxe/issues/157
iPXE floods the physical switch with LACP frames, fails to configure network interface.

Version-Release number of selected component (if applicable):
from RHOSP16.2.2
$ sudo podman exec -ti ironic_pxe_tftp rpm -q ipxe-bootimgs
ipxe-bootimgs-20181214-8.git133f4c47.el8.noarch

How reproducible:
I need

• a Dell PowerEdge R830, configured for PXE and UEFI boot
• Mellanox ConnectX-3 cards
• connected to 2 switches with active LACP bonding

Steps to Reproduce:
1. openstack baremetal introspection start <node>
2.
3.

Actual results:
ipxe.efi is properly downloaded, but then the interface fails to configure.
The interface on the switch goes to errdisabled because lacp-rate-limit
tcpdump on the switch reveals the same trace as in the github ticket: switch being flooded with LACP frames.

Expected results:
should work

Additional info:
it works replacing the ipxe.efi from ipxe-bootimgs-20181214-8.git133f4c47.el8.noarch with one I built myself that includes more recent sources + a patch to disable NET_PROTO_LACP
(https://koji.fedoraproject.org/koji/taskinfo?taskID=88334805)