.BI type " TYPE"
.RI "[ " ARGS " ]"
-.ti -8
-.IR TYPE " := [ "
-.BR bridge " | "
-.BR bond " | "
-.BR can " | "
-.BR dummy " | "
-.BR hsr " | "
-.BR ifb " | "
-.BR ipoib " |"
-.BR macvlan " | "
-.BR macvtap " | "
-.BR vcan " | "
-.BR veth " | "
-.BR vlan " | "
-.BR vxlan " |"
-.BR ip6tnl " |"
-.BR ipip " |"
-.BR sit " |"
-.BR gre " |"
-.BR gretap " |"
-.BR ip6gre " |"
-.BR ip6gretap " |"
-.BR vti " |"
-.BR nlmon " |"
-.BR ipvlan " |"
-.BR lowpan " |"
-.BR geneve " ]"
-
.ti -8
.BR "ip link delete " {
.IR DEVICE " | "
.BR "ip link set " {
.IR DEVICE " | "
.BI "group " GROUP
-.RB "} [ { " up " | " down " } ]"
+}
+.br
+.RB "[ { " up " | " down " } ]"
+.br
+.RB "[ " type
+.IR "ETYPE TYPE_ARGS" " ]"
.br
.RB "[ " arp " { " on " | " off " } ]"
.br
.IR LLADDR " ]"
.br
.in +9
-.RB "[ " vlan
-.IR VLANID " [ "
-.B qos
-.IR VLAN-QOS " ] ]"
+.RI "[ " VFVLAN-LIST " ]"
.br
.RB "[ " rate
.IR TXRATE " ]"
.br
.RB "[ " spoofchk " { " on " | " off " } ]"
.br
+.RB "[ " query_rss " { " on " | " off " } ]"
+.br
.RB "[ " state " { " auto " | " enable " | " disable " } ]"
.br
-.RB "[ " trust " { " on " | " off " } ] ]"
+.RB "[ " trust " { " on " | " off " } ]"
+.br
+.RB "[ " node_guid " eui64 ]"
+.br
+.RB "[ " port_guid " eui64 ] ]"
.br
.in -9
+.RB "[ " xdp " { " off " | "
+.br
+.in +8
+.BR object
+.IR FILE
+.RB "[ " section
+.IR NAME " ]"
+.RB "[ " verbose " ] |"
+.br
+.BR pinned
+.IR FILE " } ]"
+.br
+.in -8
.RB "[ " master
.IR DEVICE " ]"
.br
.RB "[ " nomaster " ]"
.br
+.RB "[ " vrf
+.IR NAME " ]"
+.br
.RB "[ " addrgenmode " { " eui64 " | " none " | " stable_secret " | " random " } ]"
-
+.br
+.RB "[ " macaddr " { " flush " | { " add " | " del " } "
+.IR MACADDR " | set [ "
+.IR MACADDR " [ "
+.IR MACADDR " [ ... ] ] ] } ]"
+.br
.ti -8
.B ip link show
.B master
.IR DEVICE " ] ["
.B type
-.IR TYPE " ]"
+.IR ETYPE " ] ["
+.B vrf
+.IR NAME " ]"
+
+.ti -8
+.B ip link xstats
+.BI type " TYPE"
+.RI "[ " ARGS " ]"
+
+.ti -8
+.B ip link afstats
+.RB "[ " dev
+.IR DEVICE " ]"
.ti -8
.B ip link help
.RI "[ " TYPE " ]"
+.ti -8
+.IR TYPE " := [ "
+.BR bridge " | "
+.BR bond " | "
+.BR can " | "
+.BR dummy " | "
+.BR hsr " | "
+.BR ifb " | "
+.BR ipoib " |"
+.BR macvlan " | "
+.BR macvtap " | "
+.BR vcan " | "
+.BR veth " | "
+.BR vlan " | "
+.BR vxlan " |"
+.BR ip6tnl " |"
+.BR ipip " |"
+.BR sit " |"
+.BR gre " |"
+.BR gretap " |"
+.BR ip6gre " |"
+.BR ip6gretap " |"
+.BR vti " |"
+.BR nlmon " |"
+.BR ipvlan " |"
+.BR lowpan " |"
+.BR geneve " |"
+.BR vrf " |"
+.BR macsec " ]"
+
+.ti -8
+.IR ETYPE " := [ " TYPE " |"
+.BR bridge_slave " | " bond_slave " ]"
+
+.ti -8
+.IR VFVLAN-LIST " := [ " VFVLAN-LIST " ] " VFVLAN
+
+.ti -8
+.IR VFVLAN " := "
+.RB "[ " vlan
+.IR VLANID " [ "
+.B qos
+.IR VLAN-QOS " ] ["
+.B proto
+.IR VLAN-PROTO " ] ]"
+
.SH "DESCRIPTION"
.SS ip link add - add virtual link
.sp
.BR geneve
- GEneric NEtwork Virtualization Encapsulation
+.sp
+.BR macsec
+- Interface for IEEE 802.1AE MAC Security (MACsec)
+.sp
+.BR vrf
+- Interface for L3 VRF domains
.in -8
.TP
.BI "ip link add
.BI link " DEVICE "
.BI name " NAME "
-.BI type " vlan "
+.B "type vlan"
[
.BI protocol " VLAN_PROTO "
]
the following additional arguments are supported:
.BI "ip link add " DEVICE
-.BI type " vxlan " id " ID"
+.BI type " vxlan " id " VNI"
[
.BI dev " PHYS_DEV "
.RB " ] [ { " group " | " remote " } "
] [
.BI tos " TOS "
] [
+.BI flowlabel " FLOWLABEL "
+] [
.BI dstport " PORT "
] [
.BI srcport " MIN MAX "
] [
-.I "[no]learning "
+.RB [ no ] learning
] [
-.I "[no]proxy "
+.RB [ no ] proxy
] [
-.I "[no]rsc "
+.RB [ no ] rsc
] [
-.I "[no]l2miss "
+.RB [ no ] l2miss
] [
-.I "[no]l3miss "
+.RB [ no ] l3miss
] [
-.I "[no]udpcsum "
+.RB [ no ] udpcsum
] [
-.I "[no]udp6zerocsumtx "
+.RB [ no ] udp6zerocsumtx
] [
-.I "[no]udp6zerocsumrx "
+.RB [ no ] udp6zerocsumrx
] [
.BI ageing " SECONDS "
] [
.BI maxaddress " NUMBER "
] [
+.RB [ no ] external
+] [
.B gbp
+] [
+.B gpe
]
.in +8
.BI tos " TOS"
- specifies the TOS value to use in outgoing packets.
+.sp
+.BI flowlabel " FLOWLABEL"
+- specifies the flow label to use in outgoing packets.
+
.sp
.BI dstport " PORT"
- specifies the UDP destination port to communicate to the remote VXLAN tunnel endpoint.
source ports to communicate to the remote VXLAN tunnel endpoint.
.sp
-.I [no]learning
+.RB [ no ] learning
- specifies if unknown source link layer addresses and IP addresses
are entered into the VXLAN device forwarding database.
.sp
-.I [no]rsc
+.RB [ no ] rsc
- specifies if route short circuit is turned on.
.sp
-.I [no]proxy
+.RB [ no ] proxy
- specifies ARP proxy is turned on.
.sp
-.I [no]l2miss
+.RB [ no ] l2miss
- specifies if netlink LLADDR miss notifications are generated.
.sp
-.I [no]l3miss
+.RB [ no ] l3miss
- specifies if netlink IP ADDR miss notifications are generated.
.sp
-.I [no]udpcsum
-- specifies if UDP checksum is filled in
+.RB [ no ] udpcsum
+- specifies if UDP checksum is calculated for transmitted packets over IPv4.
.sp
-.I [no]udp6zerocsumtx
-- specifies if UDP checksum is filled in
+.RB [ no ] udp6zerocsumtx
+- skip UDP checksum calculation for transmitted packets over IPv6.
.sp
-.I [no]udp6zerocsumrx
-- specifies if UDP checksum is received
+.RB [ no ] udp6zerocsumrx
+- allow incoming UDP packets over IPv6 with zero checksum field.
.sp
.BI ageing " SECONDS"
.BI maxaddress " NUMBER"
- specifies the maximum number of FDB entries.
+.sp
+.RB [ no ] external
+- specifies whether an external control plane
+.RB "(e.g. " "ip route encap" )
+or the internal FDB should be used.
+
.sp
.B gbp
- enables the Group Policy extension (VXLAN-GBP).
.in -4
+.sp
+.B gpe
+- enables the Generic Protocol extension (VXLAN-GPE). Currently, this is
+only supported together with the
+.B external
+keyword.
+
.in -8
.TP
the following additional arguments are supported:
.BI "ip link add " DEVICE
-.BR type " { gre | ipip | sit } "
+.BR type " { " gre " | " ipip " | " sit " }"
.BI " remote " ADDR " local " ADDR
[
-.BR encap " { fou | gue | none } "
+.BR encap " { " fou " | " gue " | " none " }"
] [
-.BI "encap-sport { " PORT " | auto } "
+.BR encap-sport " { " \fIPORT " | " auto " }"
] [
.BI "encap-dport " PORT
] [
-.I " [no]encap-csum "
+.RB [ no ] encap-csum
] [
-.I " [no]encap-remcsum "
+.RB [ no ] encap-remcsum
]
.in +8
It must be an address on another interface on this host.
.sp
-.BR encap " { fou | gue | none } "
+.BR encap " { " fou " | " gue " | " none " }"
- specifies type of secondary UDP encapsulation. "fou" indicates
Foo-Over-UDP, "gue" indicates Generic UDP Encapsulation.
.sp
-.BI "encap-sport { " PORT " | auto } "
+.BR encap-sport " { " \fIPORT " | " auto " }"
- specifies the source port in UDP encapsulation.
.IR PORT
indicates the port by number, "auto"
encapsulated packet).
.sp
-.I [no]encap-csum
+.RB [ no ] encap-csum
- specifies if UDP checksums are enabled in the secondary
encapsulation.
.sp
-.I [no]encap-remcsum
+.RB [ no ] encap-remcsum
- specifies if Remote Checksum Offload is enabled. This is only
applicable for Generic UDP Encapsulation.
the following additional arguments are supported:
.BI "ip link add " DEVICE
-.BI type " { ip6gre | ip6gretap } " remote " ADDR " local " ADDR
+.BR type " { " ip6gre " | " ip6gretap " }"
+.BI remote " ADDR " local " ADDR"
[
-.I "[i|o]seq]"
+.RB [ i | o ] seq
] [
-.I "[i|o]key" KEY
+.RB [ i | o ] key
+.I KEY
] [
-.I " [i|o]csum "
+.RB [ i | o ] csum
] [
.BI hoplimit " TTL "
] [
It must be an address on another interface on this host.
.sp
-.BI [i|o]seq
+.RB [ i | o ] seq
- serialize packets.
The
.B oseq
flag requires that all input packets are serialized.
.sp
-.BI [i|o]key " KEY"
+.RB [ i | o ] key " \fIKEY"
- use keyed GRE with key
.IR KEY ". "KEY
is either a number or an IPv4 address-like dotted quad.
parameters specify different keys for input and output.
.sp
-.BI [i|o]csum
+.RB [ i | o ] csum
- generate/require checksums for tunneled packets.
The
.B ocsum
the following additional arguments are supported:
.BI "ip link add " DEVICE " name " NAME
-.BI type " ipoib [ " pkey " PKEY ] [" mode " MODE " ]
+.BR "type ipoib " [ " pkey \fIPKEY" " ] [ " mode " \fIMODE \fR]"
.in +8
.sp
the following additional arguments are supported:
.BI "ip link add " DEVICE
-.BI type " geneve " id " ID " remote " IPADDR"
+.BI type " geneve " id " VNI " remote " IPADDR"
[
.BI ttl " TTL "
] [
.BI tos " TOS "
+] [
+.BI flowlabel " FLOWLABEL "
+] [
+.BI dstport " PORT"
+] [
+.RB [ no ] external
+] [
+.RB [ no ] udpcsum
+] [
+.RB [ no ] udp6zerocsumtx
+] [
+.RB [ no ] udp6zerocsumrx
]
.in +8
.BI tos " TOS"
- specifies the TOS value to use in outgoing packets.
+.sp
+.BI flowlabel " FLOWLABEL"
+- specifies the flow label to use in outgoing packets.
+
+.sp
+.BI dstport " PORT"
+- select a destination port other than the default of 6081.
+
+.sp
+.RB [ no ] external
+- make this tunnel externally controlled (or not, which is the default). This
+flag is mutually exclusive with the
+.BR id ,
+.BR remote ,
+.BR ttl ,
+.BR tos " and " flowlabel
+options.
+
+.sp
+.RB [ no ] udpcsum
+- specifies if UDP checksum is calculated for transmitted packets over IPv4.
+
+.sp
+.RB [ no ] udp6zerocsumtx
+- skip UDP checksum calculation for transmitted packets over IPv6.
+
+.sp
+.RB [ no ] udp6zerocsumrx
+- allow incoming UDP packets over IPv6 with zero checksum field.
+
.in -8
.TP
.BI "ip link add link " DEVICE " name " NAME
.BR type " { " macvlan " | " macvtap " } "
.BR mode " { " private " | " vepa " | " bridge " | " passthru
-.BR " [ " nopromisc " ] } "
+.RB " [ " nopromisc " ] | " source " } "
.in +8
.sp
forces the underlying interface into promiscuous mode. Passing the
.BR nopromisc " flag prevents this, so the promisc flag may be controlled "
using standard tools.
+
+.B mode source
+- allows one to set a list of allowed mac address, which is used to match
+against source mac address from received frames on underlying interface. This
+allows creating mac based VLAN associations, instead of standard port or tag
+based. The feature is useful to deploy 802.1x mac based behavior,
+where drivers of underlying interfaces doesn't allows that.
+.in -8
+
+.TP
+High-availability Seamless Redundancy (HSR) Support
+For a link of type
+.I HSR
+the following additional arguments are supported:
+
+.BI "ip link add link " DEVICE " name " NAME " type hsr"
+.BI slave1 " SLAVE1-IF " slave2 " SLAVE2-IF "
+.RB [ " supervision"
+.IR ADDR-BYTE " ] ["
+.BR version " { " 0 " | " 1 " } ]"
+
+.in +8
+.sp
+.BR type " hsr "
+- specifies the link type to use, here HSR.
+
+.BI slave1 " SLAVE1-IF "
+- Specifies the physical device used for the first of the two ring ports.
+
+.BI slave2 " SLAVE2-IF "
+- Specifies the physical device used for the second of the two ring ports.
+
+.BI supervision " ADDR-BYTE"
+- The last byte of the multicast address used for HSR supervision frames.
+Default option is "0", possible values 0-255.
+
+.BR version " { " 0 " | " 1 " }"
+- Selects the protocol version of the interface. Default option is "0", which
+corresponds to the 2010 version of the HSR standard. Option "1" activates the
+2012 version.
+.in -8
+
+.TP
+MACsec Type Support
+For a link of type
+.I MACsec
+the following additional arguments are supported:
+
+.BI "ip link add link " DEVICE " name " NAME " type macsec"
+[ [
+.BI address " <lladdr>"
+]
+.BI port " PORT"
+|
+.BI sci " SCI"
+] [
+.BI cipher " CIPHER_SUITE"
+] [
+.BR icvlen " { "
+.IR 8..16 " } ] ["
+.BR encrypt " {"
+.BR on " | " off " } ] [ "
+.BR send_sci " { " on " | " off " } ] ["
+.BR end_station " { " on " | " off " } ] ["
+.BR scb " { " on " | " off " } ] ["
+.BR protect " { " on " | " off " } ] ["
+.BR replay " { " on " | " off " }"
+.BR window " { "
+.IR 0..2^32-1 " } ] ["
+.BR validate " { " strict " | " check " | " disabled " } ] ["
+.BR encodingsa " { "
+.IR 0..3 " } ]"
+
+.in +8
+.sp
+.BI address " <lladdr> "
+- sets the system identifier component of secure channel for this MACsec device.
+
+.sp
+.BI port " PORT "
+- sets the port number component of secure channel for this MACsec device, in a
+range from 1 to 65535 inclusive. Numbers with a leading " 0 " or " 0x " are
+interpreted as octal and hexadecimal, respectively.
+
+.sp
+.BI sci " SCI "
+- sets the secure channel identifier for this MACsec device.
+.I SCI
+is a 64bit wide number in hexadecimal format.
+
+.sp
+.BI cipher " CIPHER_SUITE "
+- defines the cipher suite to use.
+
+.sp
+.BI icvlen " LENGTH "
+- sets the length of the Integrity Check Value (ICV).
+
+.sp
+.BR "encrypt on " or " encrypt off"
+- switches between authenticated encryption, or authenticity mode only.
+
+.sp
+.BR "send_sci on " or " send_sci off"
+- specifies whether the SCI is included in every packet, or only when it is necessary.
+
+.sp
+.BR "end_station on " or " end_station off"
+- sets the End Station bit.
+
+.sp
+.BR "scb on " or " scb off"
+- sets the Single Copy Broadcast bit.
+
+.sp
+.BR "protect on " or " protect off"
+- enables MACsec protection on the device.
+
+.sp
+.BR "replay on " or " replay off"
+- enables replay protection on the device.
+
+.in +8
+
+.sp
+.BI window " SIZE "
+- sets the size of the replay window.
+
+.in -8
+
+.sp
+.BR "validate strict " or " validate check " or " validate disabled"
+- sets the validation mode on the device.
+
+.sp
+.BI encodingsa " AN "
+- sets the active secure association for transmission.
+
+.in -8
+
+.TP
+VRF Type Support
+For a link of type
+.I VRF
+the following additional arguments are supported:
+
+.BI "ip link add " DEVICE " type vrf table " TABLE
+
+.in +8
+.sp
+.BR table " table id associated with VRF device"
+
.in -8
.SS ip link delete - delete virtual link
.SS ip link set - change device attributes
+.PP
+.B Warning:
+If multiple parameter changes are requested,
+.B ip
+aborts immediately after any of the changes have failed.
+This is the only case when
+.B ip
+can move the system to an unpredictable state. The solution
+is to avoid changing several parameters with one
+.B ip link set
+call.
+
.TP
.BI dev " DEVICE "
.I DEVICE
.B qos
as 0 disables VLAN tagging and filtering for the VF.
+.sp
+.BI proto " VLAN-PROTO"
+- assign VLAN PROTOCOL for the VLAN tag, either 802.1Q or 802.1ad.
+Setting to 802.1ad, all traffic sent from the VF will be tagged with VLAN S-Tag.
+Incoming traffic will have VLAN S-Tags stripped before being passed to the VF.
+Setting to 802.1ad also enables an option to concatenate another VLAN tag, so both
+S-TAG and C-TAG will be inserted/stripped for outgoing/incoming traffic, respectively.
+If not specified, the value is assumed to be 802.1Q. Both the
+.B vf
+and
+.B vlan
+parameters must be specified.
+
.sp
.BI rate " TXRATE"
-- change the allowed transmit bandwidth, in Mbps, for the specified VF.
.BI spoofchk " on|off"
- turn packet spoof checking on or off for the specified VF.
.sp
+.BI query_rss " on|off"
+- toggle the ability of querying the RSS configuration of a specific VF. VF RSS information like RSS hash key may be considered sensitive on some devices where this information is shared between VF and PF and thus its querying may be prohibited by default.
+.sp
.BI state " auto|enable|disable"
- set the virtual link state as seen by the specified VF. Setting to auto means a
reflection of the PF link state, enable lets the VF to communicate with other VFs on
.BI trust " on|off"
- trust the specified VF user. This enables that VF user can set a specific feature
which may impact security and/or performance. (e.g. VF multicast promiscuous mode)
+.sp
+.BI node_guid " eui64"
+- configure node GUID for the VF.
+.sp
+.BI port_guid " eui64"
+- configure port GUID for the VF.
.in -8
+.TP
+.B xdp object "|" pinned "|" off
+set (or unset) a XDP ("express data path") BPF program to run on every
+packet at driver level.
+
+.B off
+(or
+.B none
+)
+- Detaches any currently attached XDP/BPF program from the given device.
+
+.BI object " FILE "
+- Attaches a XDP/BPF program to the given device. The
+.I FILE
+points to a BPF ELF file (f.e. generated by LLVM) that contains the BPF
+program code, map specifications, etc. If a XDP/BPF program is already
+attached to the given device, an error will be thrown. If no XDP/BPF
+program is currently attached, the device supports XDP and the program
+from the BPF ELF file passes the kernel verifier, then it will be attached
+to the device. If the option
+.I -force
+is passed to
+.B ip
+then any prior attached XDP/BPF program will be atomically overridden and
+no error will be thrown in this case. If no
+.B section
+option is passed, then the default section name ("prog") will be assumed,
+otherwise the provided section name will be used. If no
+.B verbose
+option is passed, then a verifier log will only be dumped on load error.
+See also
+.B EXAMPLES
+section for usage examples.
+
+.BI section " NAME "
+- Specifies a section name that contains the BPF program code. If no section
+name is specified, the default one ("prog") will be used. This option is
+to be passed with the
+.B object
+option.
+
+.BI verbose
+- Act in verbose mode. For example, even in case of success, this will
+print the verifier log in case a program was loaded from a BPF ELF file.
+
+.BI pinned " FILE "
+- Attaches a XDP/BPF program to the given device. The
+.I FILE
+points to an already pinned BPF program in the BPF file system. The option
+.B section
+doesn't apply here, but otherwise semantics are the same as with the option
+.B object
+described already.
+
.TP
.BI master " DEVICE"
set master device of the device (enslave device).
.BR "link-netnsid "
set peer netnsid for a cross-netns interface
-.PP
-.B Warning:
-If multiple parameter changes are requested,
-.B ip
-aborts immediately after any of the changes have failed.
-This is the only case when
-.B ip
-can move the system to an unpredictable state. The solution
-is to avoid changing several parameters with one
-.B ip link set
-call.
+.TP
+.BI type " ETYPE TYPE_ARGS"
+Change type-specific settings. For a list of supported types and arguments refer
+to the description of
+.B "ip link add"
+above. In addition to that, it is possible to manipulate settings to slave
+devices:
+
+.TP
+Bridge Slave Support
+For a link with master
+.B bridge
+the following additional arguments are supported:
+
+.B "ip link set type bridge_slave"
+[
+.B fdb_flush
+] [
+.BI state " STATE"
+] [
+.BI priority " PRIO"
+] [
+.BI cost " COST"
+] [
+.BR guard " { " on " | " off " }"
+] [
+.BR hairpin " { " on " | " off " }"
+] [
+.BR fastleave " { " on " | " off " }"
+] [
+.BR root_block " { " on " | " off " }"
+] [
+.BR learning " { " on " | " off " }"
+] [
+.BR flood " { " on " | " off " }"
+] [
+.BR proxy_arp " { " on " | " off " }"
+] [
+.BR proxy_arp_wifi " { " on " | " off " }"
+] [
+.BI mcast_router " MULTICAST_ROUTER"
+] [
+.BR mcast_fast_leave " { " on " | " off "}"
+] [
+.BR mcast_flood " { " on " | " off " } ]"
+
+.in +8
+.sp
+.B fdb_flush
+- flush bridge slave's fdb dynamic entries.
+
+.BI state " STATE"
+- Set port state.
+.I STATE
+is a number representing the following states:
+.BR 0 " (disabled),"
+.BR 1 " (listening),"
+.BR 2 " (learning),"
+.BR 3 " (forwarding),"
+.BR 4 " (blocking)."
+
+.BI priority " PRIO"
+- set port priority (a 16bit unsigned value).
+
+.BI cost " COST"
+- set port cost (a 32bit unsigned value).
+
+.BR guard " { " on " | " off " }"
+- block incoming BPDU packets on this port.
+
+.BR hairpin " { " on " | " off " }"
+- enable hairpin mode on this port. This will allow incoming packets on this
+port to be reflected back.
+
+.BR fastleave " { " on " | " off " }"
+- enable multicast fast leave on this port.
+
+.BR root_block " { " on " | " off " }"
+- block this port from becoming the bridge's root port.
+
+.BR learning " { " on " | " off " }"
+- allow MAC address learning on this port.
+
+.BR flood " { " on " | " off " }"
+- open the flood gates on this port, i.e. forward all unicast frames to this
+port also. Requires
+.BR proxy_arp " and " proxy_arp_wifi
+to be turned off.
+
+.BR proxy_arp " { " on " | " off " }"
+- enable proxy ARP on this port.
+
+.BR proxy_arp_wifi " { " on " | " off " }"
+- enable proxy ARP on this port which meets extended requirements by IEEE
+802.11 and Hotspot 2.0 specifications.
+
+.BI mcast_router " MULTICAST_ROUTER"
+- configure this port for having multicast routers attached. A port with a
+multicast router will receive all multicast traffic.
+.I MULTICAST_ROUTER
+may be either
+.B 0
+to disable multicast routers on this port,
+.B 1
+to let the system detect the presence of of routers (this is the default),
+.B 2
+to permanently enable multicast traffic forwarding on this port or
+.B 3
+to enable multicast routers temporarily on this port, not depending on incoming
+queries.
+
+.BR mcast_fast_leave " { " on " | " off " }"
+- this is a synonym to the
+.B fastleave
+option above.
+
+.BR mcast_flood " { " on " | " off " }"
+- controls whether a given port will be flooded with multicast traffic for which there is no MDB entry.
+
+.in -8
+
+.TP
+Bonding Slave Support
+For a link with master
+.B bond
+the following additional arguments are supported:
+
+.B "ip link set type bond_slave"
+[
+.BI queue_id " ID"
+]
+
+.in +8
+.sp
+.BI queue_id " ID"
+- set the slave's queue ID (a 16bit unsigned value).
+
+.in -8
+
+.TP
+MACVLAN and MACVTAP Support
+Modify list of allowed macaddr for link in source mode.
+
+.B "ip link set type { macvlan | macvap } "
+[
+.BI macaddr " " "" COMMAND " " MACADDR " ..."
+]
+
+Commands:
+.in +8
+.B add
+- add MACADDR to allowed list
+.sp
+.B set
+- replace allowed list
+.sp
+.B del
+- remove MACADDR from allowed list
+.sp
+.B flush
+- flush whole allowed list
+.sp
+.in -8
+
.SS ip link show - display device attributes
.I DEVICE
specifies the master device which enslaves devices to show.
+.TP
+.BI vrf " NAME "
+.I NAME
+speficies the VRF which enslaves devices to show.
+
.TP
.BI type " TYPE "
.I TYPE
specifies the type of devices to show.
-.TP
-The show command has additional formatting options:
+Note that the type name is not checked against the list of supported types -
+instead it is sent as-is to the kernel. Later it is used to filter the returned
+interface list by comparing it with the relevant attribute in case the kernel
+didn't filter already. Therefore any string is accepted, but may lead to empty
+output.
-.RS
-.TP
-.BR "\-s" , " \-stats", " \-statistics"
-output more statistics about packet usage.
+.SS ip link xstats - display extended statistics
.TP
-.BR "\-d", " \-details"
-output more detailed information.
+.BI type " TYPE "
+.I TYPE
+specifies the type of devices to display extended statistics for.
-.TP
-.BR "\-h", " \-human", " \-human-readable"
-output statistics with human readable values number followed by suffix
+.SS ip link afstats - display address-family specific statistics
.TP
-.BR "\-iec"
-print human readable rates in IEC units (ie. 1K = 1024).
-.RE
+.BI dev " DEVICE "
+.I DEVICE
+specifies the device to display address-family statistics for.
.SS ip link help - display help
.RS 4
Creates an IPIP that is encapsulated with Generic UDP Encapsulation,
and the outer UDP checksum and remote checksum offload are enabled.
-
+.RE
+.PP
+ip link set dev eth0 xdp obj prog.o
+.RS 4
+Attaches a XDP/BPF program to device eth0, where the program is
+located in prog.o, section "prog" (default section). In case a
+XDP/BPF program is already attached, throw an error.
+.RE
+.PP
+ip -force link set dev eth0 xdp obj prog.o sec foo
+.RS 4
+Attaches a XDP/BPF program to device eth0, where the program is
+located in prog.o, section "foo". In case a XDP/BPF program is
+already attached, it will be overridden by the new one.
+.RE
+.PP
+ip -force link set dev eth0 xdp pinned /sys/fs/bpf/foo
+.RS 4
+Attaches a XDP/BPF program to device eth0, where the program was
+previously pinned as an object node into BPF file system under
+name foo.
+.RE
+.PP
+ip link set dev eth0 xdp off
+.RS 4
+If a XDP/BPF program is attached on device eth0, detach it and
+effectively turn off XDP for device eth0.
.RE
.PP
ip link add link wpan0 lowpan0 type lowpan
projects / mirror_iproute2.git / blobdiff