A method comprising: monitoring a network for an occurrence of an event, wherein the network comprises a plurality of nodes (115, 156, 166, 176, 180), the plurality of nodes comprises at least a first virtual machine and a second virtual machine, and the event is an action from amongst a plurality of actions, wherein the plurality of actions comprises: an addition of a virtual machine to the network, a removal of a virtual machine from the network, or a migration of a virtual machine from a first node to a second node within the network; detecting the occurrence of the event, wherein the event is associated with information; determining a first propagation rule, wherein the first propagation rule comprises at least a direction of propagation condition and a skip condition; determining that the second virtual machine is a qualifying sibling node of the first virtual machine by determining that: the second virtual machine is directly connected to the first virtual machine, the second virtual machine satisfies the direction of propagation condition, and the second virtual machine does not satisfy the skip condition; and after determining that the second virtual machine is a qualifying sibling node of the first virtual machine and in response to detecting the occurrence of the event, automatically propagating the information to the second virtual machine. monitoring a network for an occurrence of an event, wherein the network comprises a plurality of nodes (115, 156, 166, 176, 180), the plurality of nodes comprises at least a first virtual machine and a second virtual machine, and the event is an action from amongst a plurality of actions, wherein the plurality of actions comprises: an addition of a virtual machine to the network, a removal of a virtual machine from the network, or a migration of a virtual machine from a first node to a second node within the network; detecting the occurrence of the event, wherein the event is associated with information; determining a first propagation rule, wherein the first propagation rule comprises at least a direction of propagation condition and a skip condition; determining that the second virtual machine is a qualifying sibling node of the first virtual machine by determining that: the second virtual machine is directly connected to the first virtual machine, the second virtual machine satisfies the direction of propagation condition, and the second virtual machine does not satisfy the skip condition; and after determining that the second virtual machine is a qualifying sibling node of the first virtual machine and in response to detecting the occurrence of the event, automatically propagating the information to the second virtual machine. the network comprises a plurality of nodes (115, 156, 166, 176, 180), the plurality of nodes comprises at least a first virtual machine and a second virtual machine, and the event is an action from amongst a plurality of actions, wherein the plurality of actions comprises: an addition of a virtual machine to the network, a removal of a virtual machine from the network, or a migration of a virtual machine from a first node to a second node within the network; an addition of a virtual machine to the network, a removal of a virtual machine from the network, or a migration of a virtual machine from a first node to a second node within the network; detecting the occurrence of the event, wherein the event is associated with information; determining a first propagation rule, wherein the first propagation rule comprises at least a direction of propagation condition and a skip condition; determining that the second virtual machine is a qualifying sibling node of the first virtual machine by determining that: the second virtual machine is directly connected to the first virtual machine, the second virtual machine satisfies the direction of propagation condition, and the second virtual machine does not satisfy the skip condition; and the second virtual machine is directly connected to the first virtual machine, the second virtual machine satisfies the direction of propagation condition, and the second virtual machine does not satisfy the skip condition; and after determining that the second virtual machine is a qualifying sibling node of the first virtual machine and in response to detecting the occurrence of the event, automatically propagating the information to the second virtual machine.