Find all MACs registered to a OUI
        params:
         - name: the OUI name
         - case_sensitive: default to False
        returns: a dict of mac:tuples (Name, Extended Name)

def reverse_lookup(self, name, case_sensitive=False):
        """Find all MACs registered to a OUI
        params:
         - name: the OUI name
         - case_sensitive: default to False
        returns: a dict of mac:tuples (Name, Extended Name)
        """
        if case_sensitive:
            filtr = lambda x, l: any(x == z for z in l)
        else:
            name = name.lower()
            filtr = lambda x, l: any(x == z.lower() for z in l)
        return {k: v for k, v in six.iteritems(self.__dict__)
                if filtr(name, v)}