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Qemu currently sends an Ethernet packet with protocol id 0x835 once a VM was successfully migrated. The content of the packet looks like a gratuitous RARP, just with the wrong protocol ID, which should be 0x8035. I wrote some filters to let either one of the packets pass and am adapting the clean-traffic sample filter to use it. I am also doing some changes on the existing ARP filter which was lacking a test for source MAC address.
LibVirt : simple API for virtualization Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes). It is free software available under the GNU Lesser General Public License. Virtualization of the Linux Operating System means the ability to run multiple instances of Operating Systems concurrently on a single hardware system where the basic resources are driven by a Linux instance. The library aim at providing long term stable C API initially for the Xen paravirtualization but should be able to integrate other virtualization mechanisms if needed. Daniel Veillard <veillard@redhat.com>
Description
Libvirt provides a portable, long term stable C API for managing the
virtualization technologies provided by many operating systems. It
includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware
vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER
Hypervisor.
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