def METHOD_NAME(self):
    """
    Collects the routing table, filters out what we consider to be static
    routes worthy of storage in NAV, and ensure storage as prefixes.
    """
    mib = IpForwardMib(self.agent)
    ifmib = IfMib(self.agent)
    routes = yield mib.get_decoded_routes(protocols=WANTED_PROTOCOLS)
    filtered = [r for r in routes if self.is_wanted_route(r)]
    self._logger.debug(
        "%d of %d collected routes are static candidates",
        len(filtered),
        len(routes),
    )
    self._logger.debug(
        "collected destinations: %r", [r.destination for r in filtered]
    )
    for route in filtered:
        ifindex = yield mib.get_cidr_route_column('IfIndex', route.index)
        alias = None
        if ifindex:
            alias = yield ifmib.retrieve_column_by_index('ifAlias', (ifindex,))
        self.route_to_containers(route, descr=alias)
    Prefix.add_static_routes_sentinel(self.containers)