END HOST PHYSICAL CONNECTION ON A SWITCH PORT USING MULTIPLE ETHERNET FRAMES

Machine logic (for example, software) that performs the following steps: (i) providing a system including a first hypervisor and a first topology agent; (ii) running the topology agent on the hypervisor; (iii) dynamically creating a first unique address for the first topology agent; and (iv) storing the first unique address in a set of forwarding database (FDB) table(s) located on a set of network switch(es). Also, lightweight mechanisms on network switches for finding and/or clearing media access controller (MAC) addresses from FDB tables.