'Return [ intf1, intf2... ] for all intfs that connect self to node.'

def connectionsTo(self, node):

    connections = []
    for intf in self.intfList():
        link = intf.link
        if link:
            (node1, node2) = (link.intf1.node, link.intf2.node)
            if ((node1 == self) and (node2 == node)):
                connections += [(intf, link.intf2)]
            elif ((node1 == node) and (node2 == self)):
                connections += [(intf, link.intf1)]
    return connections
