def _set_nssa(self, v, load=False):
if hasattr(v, "<STR_LIT>"):<EOL><INDENT>v = v._utype(v)<EOL><DEDENT>try:<EOL><INDENT>t = YANGDynClass(v,base=nssa.nssa, is_container='<STR_LIT>', presence=True, yang_name="<STR_LIT>", rest_name="<STR_LIT>", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, extensions={u'<STR_LIT>': {u'<STR_LIT>': None, u'<STR_LIT:info>': u'<STR_LIT>', u'<STR_LIT>': None}}, namespace='<STR_LIT>', defining_module='<STR_LIT>', yang_type='<STR_LIT>', is_config=True)<EOL><DEDENT>except (TypeError, ValueError):<EOL><INDENT>raise ValueError({<EOL>'<STR_LIT>': """<STR_LIT>""",<EOL>'<STR_LIT>': "<STR_LIT>",<EOL>'<STR_LIT>': """<STR_LIT>""",<EOL>})<EOL><DEDENT>self.__nssa = t<EOL>if hasattr(self, '<STR_LIT>'):<EOL><INDENT>self._set()<EOL><DEDENT>
Setter method for nssa, mapped from YANG variable /rbridge_id/ipv6/router/ospf/area/nssa (container)
If this variable is read-only (config: false) in the
source YANG file, then _set_nssa is considered as a private
method. Backends looking to populate this variable should
do so via calling thisObj._set_nssa() directly.

YANG Description: Specify the area as a Not-So-Stubby Area.NSSA allows to configure OSPF areas that provide the benefits of stub areas, but that also are capable of importing external route information. OSPF does not flood external routes from other areas into an NSSA, but does translate and flood route information from the NSSA into other areas such as the backbone. NSSAs are especially useful to summarize Type-5 External LSAs (external routes) before forwarding them into an area. The OSPF specification (RFC 2328) prohibits summarization of Type-5 LSAs and requires OSPF to flood Type-5 LSAs throughout a routing domain. With NSSA, it is possible specify an address range for aggregating the external routes that the NSSAs ABR exports into other areas.Since the NSSA is partially 'stubby' the ABR does not flood external LSAs from the backbone into the NSSA.To provide access to the rest of the Autonomous System (AS), the ABR generates a default Type-7 LSA into the NSSA.