man/man4/ifmedia.4

.\"	$NetBSD: ifmedia.4,v 1.29 2009/04/10 17:07:15 joerg Exp $
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.\" NASA Ames Research Center.
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.Dd August 29, 2020
.Dt IFMEDIA 4
.Os
.Sh NAME
.Nm ifmedia
.Nd network interface media settings
.Sh SYNOPSIS
.In sys/socket.h
.In net/if.h
.In net/if_media.h
.Sh DESCRIPTION
The
.Nm
interface provides a consistent method for querying and setting
network interface media and media options.  The media is typically
set using the
.Xr ifconfig 8
command.
.Pp
There are currently four link types supported by
.Nm :
.Bl -tag -offset indent -width ".Dv IFM_IEEE80211"
.It Dv IFM_ATM
Asynchronous Transfer Mode
.It Dv IFM_CARP
Common Address Redundancy Protocol
.It Dv IFM_ETHER
Ethernet
.It Dv IFM_IEEE80211
IEEE802.11 Wireless LAN
.El
.Pp
The following sections describe the possible media settings for each
link type.  Not all of these are supported by every device; refer to
your device's manual page for more information.
.Pp
The lists below provide the possible names of each media type or option.
The first name in the list is the canonical name of the media type or
option.  Additional names are acceptable aliases for the media type or
option.
.Sh COMMON MEDIA TYPES AND OPTIONS
The following media types are shared by all link types:
.Bl -tag -offset indent -width ".Dv IFM_MANUAL"
.It Dv IFM_AUTO
Autoselect the best media.  [autoselect, auto]
.It Dv IFM_MANUAL
Jumper or switch on device selects media.  [manual]
.It Dv IFM_NONE
Deselect all media.  [none]
.El
.Pp
The following media options are shared by all link types:
.Bl -tag -offset indent -width ".Dv IFM_FLAG0"
.It Dv IFM_FDX
Place the device into full-duplex mode.  This option only has meaning
if the device is normally not full-duplex.  [full-duplex]
.It Dv IFM_HDX
Place the device into half-duplex mode.  This option only has meaning
if the device is normally not half-duplex.  [half-duplex]
.It Dv IFM_FLAG0
Driver-defined flag.  [flag0]
.It Dv IFM_FLAG1
Driver-defined flag.  [flag1]
.It Dv IFM_FLAG2
Driver-defined flag.  [flag2]
.It Dv IFM_LOOP
Place the device into hardware loopback mode.  [hw-loopback]
.El
.Sh MEDIA TYPES AND OPTIONS FOR ASYNCHRONOUS TRANSFER MODE
The following media types are defined for Asynchronous Transfer Mode:
.Bl -tag -offset indent -width ".Dv IFM_ATM_TAXI_100"
.It Dv IFM_ATM_UNKNOWN
Unknown media type.  [Unknown, UNKNOWN]
.It Dv IFM_ATM_UTP_25
25Mb/s over unshielded twisted pair.  [UTP/25.6MBit, UTP-25]
.It Dv IFM_ATM_TAXI_100
AMD TAXI, 100Mb/s over multi-mode fiber optic cables.  [Taxi/100MBit, TAXI-100]
.It Dv IFM_ATM_TAXI_140
AMD TAXI, 140Mb/s over multi-node fiber optic cables.  [Taxi/140MBit, TAXI-140]
.It Dv IFM_ATM_MM_155
155Mb/s over multi-mode fiber optic cables. [Multi-mode/155MBit, MM-155]
.It Dv IFM_ATM_SM_155
155Mb/s over single-mode fiber optic cables. [Single-mode/155MBit, SM-155]
.It Dv IFM_ATM_UTP_155
155Mb/s over unshielded twisted pair. [UTP/155Mbit, UTP-155]
.It Dv IFM_ATM_MM_622
622Mb/s over multi-mode fiber optic cables. [Multi-mode/622MBit, MM-622]
.It Dv IFM_ATM_SM_622
622Mb/s over single-mode fiber optic cables. [Single-mode/622MBit, SM-622]
.\".It Dv IFM_ATM_VIRTUAL
.\"...
.El
.Sh MEDIA TYPES AND OPTIONS FOR ETHERNET
The following media types are defined for Ethernet:
.Bl -tag -offset indent -width ".Dv IFM_1000_SX"
.It Dv IFM_HPNA_1
HomePNA 1.0, 1Mb/s.  [homePNA]
.It Dv IFM_10_T
10BASE-T, 10Mb/s over unshielded twisted pair, RJ45 connector.  [10baseT/UTP,
UTP, 10UTP]
.It Dv IFM_10_2
10BASE2, 10Mb/s over coaxial cable, BNC connector, also called Thinnet.
[10base2/BNC, BNC, 10BNC]
.It Dv IFM_10_5
10BASE5, 10Mb/s over 15-wire cables, DB15 connector, also called AUI.
[10base5/AUI, AUI, 10AUI]
.It Dv IFM_10_STP
10BASE-STP, 10Mb/s over shielded twisted pair, DB9 connector.  [10baseSTP,
10STP]
.It Dv IFM_10_FL
10BASE-FL, 10Mb/s over fiber optic cables.  [10baseFL, 10FL]
.It Dv IFM_100_TX
100BASE-TX, 100Mb/s over unshielded twisted pair, RJ45 connector.  [100baseTX,
100TX]
.It Dv IFM_100_FX
100BASE-FX, 100Mb/s over fiber optic cables.  [100baseFX, 100FX]
.It Dv IFM_100_T4
100BASE-T4, 100Mb/s over 4-wire (category 3) unshielded twisted pair, RJ45
connector.  [100baseT4, 100T4]
.It Dv IFM_100_T2
100BASE-T2.  [100baseT2, 100T2]
.It Dv IFM_100_VG
100VG-AnyLAN.  [100baseVG, 100VG]
.It Dv IFM_1000_SX
1000BASE-SX, 1Gb/s over multi-mode fiber optic cables. (short waves)
[1000baseSX, 1000SX]
.It Dv IFM_1000_LX
1000BASE-LX, 1Gb/s over single-mode fiber optic cables. (long waves)
[1000baseLX, 1000LX]
.It Dv IFM_1000_CX
1000BASE-CX, 1Gb/s over shielded twisted pair. (twinax)
[1000baseCX, 1000CX]
.It Dv IFM_1000_T
1000BASE-T, 1Gb/s over category 5 unshielded twisted pair, 802.3ab, RJ45
connector.
[1000baseT, 1000T]
.It Dv IFM_10G_LR
10GBASE-LR, 10Gb/s over single-mode fiber optic cables.
[10Gbase-LR]
.It Dv IFM_2500_SX
2500BASE-SX, 2.5Gb/s over multi-mode fiber optic cables.
[2500BaseSX, 2500SX]
.It Dv IFM_10G_SR
10GBASE-SR, 10Gb/s over multi-mode fiber optic cables.
[10Gbase-SR]
.It Dv IFM_10G_CX4
10GBASE-CX4, 10Gb/s over XAUI 4-lane PCS and copper cables.
[10Gbase-CX4]
.\".It Dv IFM_10G_LRM
.It Dv IFM_10G_T
10GBASE-T, 10Gb/s over unshielded twisted pair, RJ45 connector.
[10Gbase-T]
.It Dv IFM_10G_TWINAX
SFP+ direct attach, 10Gb/s over twinaxial cable.
[10Gbase-Twinax]
.\".It Dv IFM_10G_TWINAX_LONG
.It Dv IFM_40G_CR4
40GBASE-CR4, 40Gb/s over twin-ax copper cable.
[40GBASE-CR4]
.It Dv IFM_40G_SR4
40GBASE-SR4, 40Gb/s over multi-mode fiber optic cables.
[40GBASE-SR4]
.It Dv IFM_40G_LR4
40GBASE-LR4, 40Gb/s over single-mode fiber optic cables.
[40GBASE-LR4]
.El
.Pp
The following media options defined for Ethernet:
.Bl -tag -offset indent -width ".Dv IFM_ETH_TXPAUSE"
.It Dv IFM_ETH_MASTER
Configure a 1000BASE-T PHY as the clock master for a 1000BASE-T link.
This option has no effect
.Pf ( shows current status only )
if the media is
.Dv IFM_AUTO .
.It Dv IFM_ETH_TXPAUSE
Configure the device to send PAUSE
.Pf ( flow control )
frames.
This option has no effect
.Pf ( shows current status only )
if the media is
.Dv IFM_AUTO .
.It Dv IFM_ETH_RXPAUSE
Configure the device to receive PAUSE
.Pf ( flow control )
frames.
This option has no effect
.Pf ( shows current status only )
if the media is
.Dv IFM_AUTO .
.El
.Sh MEDIA TYPES AND OPTIONS FOR IEEE802.11 WIRELESS LAN
The following media types are defined for IEEE802.11 Wireless LAN:
.Bl -tag -offset indent -width ".Dv IFM_IEEE80211_OFDM12"
.It Dv IFM_IEEE80211_FH1
Frequency Hopping 1Mbps.  [FH/1Mbps, FH1, FrequencyHopping/1Mbps]
.It Dv IFM_IEEE80211_FH2
Frequency Hopping 2Mbps.  [FH/2Mbps, FH2, FrequencyHopping/2Mbps]
.It Dv IFM_IEEE80211_DS354k
Direct Sequence 354Kbps.  [DS/354Kbps, DS354K, DirectSequence/354Kbps]
.It Dv IFM_IEEE80211_DS512k
Direct Sequence 512Kbps.  [DS/512Kbps, DS512K, DirectSequence/512Kbps]
.It Dv IFM_IEEE80211_DS1
Direct Sequence 1Mbps.  [DS/1Mbps, DS1, DirectSequence/1Mbps, CCK1]
.It Dv IFM_IEEE80211_DS2
Direct Sequence 2Mbps.  [DS/2Mbps, DS2, DirectSequence/2Mbps, CCK2]
.It Dv IFM_IEEE80211_DS5
Direct Sequence 5Mbps.  [DS/5.5Mbps, DS5, DirectSequence/5.5Mbps, CCK5.5]
.It Dv IFM_IEEE80211_DS11
Direct Sequence 11Mbps.  [DS/11Mbps, DS11, DirectSequence/11Mbps, CCK11]
.It Dv IFM_IEEE80211_DS22
Direct Sequence 22Mbps.  [DS/22Mbps, DS22, DirectSequence/22Mbps]
.\".It Dv IFM_IEEE80211_MCS
.\"...
.It Dv IFM_IEEE80211_OFDM3
Orthogonal Frequency Division Multiplexing 3Mbps.  [OFDM/3Mbps OFDM3]
.It Dv IFM_IEEE80211_OFDM4
Orthogonal Frequency Division Multiplexing 4.5Mbps.  [OFDM/4.5Mbps OFDM4.5]
.It Dv IFM_IEEE80211_OFDM6
Orthogonal Frequency Division Multiplexing 6Mbps.  [OFDM/6Mbps, OFDM6]
.It Dv IFM_IEEE80211_OFDM9
Orthogonal Frequency Division Multiplexing 9Mbps.  [OFDM/9Mbps, OFDM9]
.It Dv IFM_IEEE80211_OFDM12
Orthogonal Frequency Division Multiplexing 12Mbps.  [OFDM/12Mbps, OFDM12]
.It Dv IFM_IEEE80211_OFDM18
Orthogonal Frequency Division Multiplexing 18Mbps.  [OFDM/18Mbps, OFDM18]
.It Dv IFM_IEEE80211_OFDM24
Orthogonal Frequency Division Multiplexing 24Mbps.  [OFDM/24Mbps, OFDM24]
.It Dv IFM_IEEE80211_OFDM27
Orthogonal Frequency Division Multiplexing 27Mbps.  [OFDM/27Mbps, OFDM27]
.It Dv IFM_IEEE80211_OFDM36
Orthogonal Frequency Division Multiplexing 36Mbps.  [OFDM/36Mbps, OFDM36]
.It Dv IFM_IEEE80211_OFDM48
Orthogonal Frequency Division Multiplexing 48Mbps.  [OFDM/48Mbps, OFDM48]
.It Dv IFM_IEEE80211_OFDM54
Orthogonal Frequency Division Multiplexing 54Mbps.  [OFDM/54Mbps, OFDM54]
.It Dv IFM_IEEE80211_OFDM72
Orthogonal Frequency Division Multiplexing 72Mbps.  [OFDM/72Mbps, OFDM72]
.El
.Pp
The following media options are defined for IEEE802.11 Wireless LAN:
.Bl -tag -offset indent -width ".Dv IFM_IEEE80211_MONITOR"
.It Dv IFM_IEEE80211_ADHOC
Ad-hoc mode.  [adhoc]
.Pp
In some drivers, it may be used with the
.Dv IFM_FLAG0
[flag0] media option to specify non-standard ad-hoc demo mode.
.It Dv IFM_IEEE80211_HOSTAP
Access Point mode.  [hostap]
.It Dv IFM_IEEE80211_IBSS
IBSS mode.  [ibss]
.It Dv IFM_IEEE80211_MBSS
MBSS mode.  [mesh]
.It Dv IFM_IEEE80211_MONITOR
Monitor mode.  [monitor]
.It Dv IFM_IEEE80211_TURBO
Turbo mode.  [turbo]
.It Dv IFM_IEEE80211_WDS
WDS mode.  [wds]
.El
.Pp
The following operating modes are defined for IEEE802.11 Wireless LAN:
.Bl -tag -offset indent -width ".Dv IFM_IEEE80211_11NA"
.It Dv IFM_AUTO
Autoselect the best mode.  [autoselect, auto]
.It Dv IFM_IEEE80211_11A
Orthogonal Frequency Division Multiplexing, 5GHz.  [11a]
.It Dv IFM_IEEE80211_11NA
High Throughput, 5GHz.  [11na]
.It Dv IFM_IEEE80211_11B
Direct Sequence mode.  [11b]
.It Dv IFM_IEEE80211_11G
Complementary Code Keying, 2GHz.  [11g]
.It Dv IFM_IEEE80211_11NG
High Throughput, 2GHz.  [11ng]
.It Dv IFM_IEEE80211_FH
Gaussian Frequency Shift Keying, 2GHz.  [fh]
.El
.Sh SEE ALSO
.Xr netintro 4 ,
.Xr ifconfig 8