def _get_undefined_subtlv(self):
return self.__undefined_subtlv<EOL>
Getter method for undefined_subtlv, mapped from YANG variable /network_instances/network_instance/protocols/protocol/isis/levels/level/link_state_database/lsp/tlvs/tlv/router_capabilities/router_capability/undefined_subtlvs/undefined_subtlv (list)

    YANG Description: Sub-TLVs that are not defined in the model or not recognised by
system.