# Network Constants Access Network framework constants used in C. ## Topics ### Constants [`var NW_FRAMER_CREATE_FLAGS_DEFAULT: Int32`](/documentation/Network/NW_FRAMER_CREATE_FLAGS_DEFAULT) A constant flag value that indicates that the default framer protocol behavior should be used. [`var NW_FRAMER_WAKEUP_TIME_FOREVER: UInt64`](/documentation/Network/NW_FRAMER_WAKEUP_TIME_FOREVER) A sentinel value that indicates that no wakeup should be delivered. [`var NW_LISTENER_INFINITE_CONNECTION_LIMIT: UInt32`](/documentation/Network/NW_LISTENER_INFINITE_CONNECTION_LIMIT) A static value that indicates that inbound connections should not be limited. [`var NW_QUIC_CONNECTION_DEFAULT_KEEPALIVE: Int32`](/documentation/Network/NW_QUIC_CONNECTION_DEFAULT_KEEPALIVE) [`var nw_browser_state_waiting: nw_browser_state_t`](/documentation/Network/nw_browser_state_waiting) [`var nw_interface_radio_type_cell_cdma: nw_interface_radio_type_t`](/documentation/Network/nw_interface_radio_type_cell_cdma) [`var nw_interface_radio_type_cell_endc_mmw: nw_interface_radio_type_t`](/documentation/Network/nw_interface_radio_type_cell_endc_mmw) [`var nw_interface_radio_type_cell_endc_sub6: nw_interface_radio_type_t`](/documentation/Network/nw_interface_radio_type_cell_endc_sub6) [`var nw_interface_radio_type_cell_evdo: nw_interface_radio_type_t`](/documentation/Network/nw_interface_radio_type_cell_evdo) [`var nw_interface_radio_type_cell_gsm: nw_interface_radio_type_t`](/documentation/Network/nw_interface_radio_type_cell_gsm) [`var nw_interface_radio_type_cell_lte: nw_interface_radio_type_t`](/documentation/Network/nw_interface_radio_type_cell_lte) [`var nw_interface_radio_type_cell_nr_sa_mmw: nw_interface_radio_type_t`](/documentation/Network/nw_interface_radio_type_cell_nr_sa_mmw) [`var nw_interface_radio_type_cell_nr_sa_sub6: nw_interface_radio_type_t`](/documentation/Network/nw_interface_radio_type_cell_nr_sa_sub6) [`var nw_interface_radio_type_cell_wcdma: nw_interface_radio_type_t`](/documentation/Network/nw_interface_radio_type_cell_wcdma) [`var nw_interface_radio_type_unknown: nw_interface_radio_type_t`](/documentation/Network/nw_interface_radio_type_unknown) [`var nw_interface_radio_type_wifi_a: nw_interface_radio_type_t`](/documentation/Network/nw_interface_radio_type_wifi_a) [`var nw_interface_radio_type_wifi_ac: nw_interface_radio_type_t`](/documentation/Network/nw_interface_radio_type_wifi_ac) [`var nw_interface_radio_type_wifi_ax: nw_interface_radio_type_t`](/documentation/Network/nw_interface_radio_type_wifi_ax) [`var nw_interface_radio_type_wifi_b: nw_interface_radio_type_t`](/documentation/Network/nw_interface_radio_type_wifi_b) [`var nw_interface_radio_type_wifi_g: nw_interface_radio_type_t`](/documentation/Network/nw_interface_radio_type_wifi_g) [`var nw_interface_radio_type_wifi_n: nw_interface_radio_type_t`](/documentation/Network/nw_interface_radio_type_wifi_n) [`var nw_multipath_version_0: nw_multipath_version_t`](/documentation/Network/nw_multipath_version_0) [`var nw_multipath_version_1: nw_multipath_version_t`](/documentation/Network/nw_multipath_version_1) [`var nw_multipath_version_unspecified: nw_multipath_version_t`](/documentation/Network/nw_multipath_version_unspecified) [`var nw_parameters_expired_dns_behavior_persistent: nw_parameters_expired_dns_behavior_t`](/documentation/Network/nw_parameters_expired_dns_behavior_persistent) [`var nw_path_unsatisfied_reason_cellular_denied: nw_path_unsatisfied_reason_t`](/documentation/Network/nw_path_unsatisfied_reason_cellular_denied) [`var nw_path_unsatisfied_reason_local_network_denied: nw_path_unsatisfied_reason_t`](/documentation/Network/nw_path_unsatisfied_reason_local_network_denied) [`var nw_path_unsatisfied_reason_not_available: nw_path_unsatisfied_reason_t`](/documentation/Network/nw_path_unsatisfied_reason_not_available) [`var nw_path_unsatisfied_reason_vpn_inactive: nw_path_unsatisfied_reason_t`](/documentation/Network/nw_path_unsatisfied_reason_vpn_inactive) [`var nw_path_unsatisfied_reason_wifi_denied: nw_path_unsatisfied_reason_t`](/documentation/Network/nw_path_unsatisfied_reason_wifi_denied) [`var nw_quic_stream_type_bidirectional: nw_quic_stream_type_t`](/documentation/Network/nw_quic_stream_type_bidirectional) [`var nw_quic_stream_type_datagram: nw_quic_stream_type_t`](/documentation/Network/nw_quic_stream_type_datagram) [`var nw_quic_stream_type_unidirectional: nw_quic_stream_type_t`](/documentation/Network/nw_quic_stream_type_unidirectional) [`var nw_quic_stream_type_unknown: nw_quic_stream_type_t`](/documentation/Network/nw_quic_stream_type_unknown) ### Constants [`var NW_FRAMER_CREATE_FLAGS_DEFAULT: Int32`](/documentation/Network/NW_FRAMER_CREATE_FLAGS_DEFAULT) A constant flag value that indicates that the default framer protocol behavior should be used. [`var NW_FRAMER_WAKEUP_TIME_FOREVER: UInt64`](/documentation/Network/NW_FRAMER_WAKEUP_TIME_FOREVER) A sentinel value that indicates that no wakeup should be delivered. [`var NW_LISTENER_INFINITE_CONNECTION_LIMIT: UInt32`](/documentation/Network/NW_LISTENER_INFINITE_CONNECTION_LIMIT) A static value that indicates that inbound connections should not be limited. [`var NW_QUIC_CONNECTION_DEFAULT_KEEPALIVE: Int32`](/documentation/Network/NW_QUIC_CONNECTION_DEFAULT_KEEPALIVE) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)