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218 lines
6.8 KiB
Text
218 lines
6.8 KiB
Text
What: /sys/class/net/<iface>/name_assign_type
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Date: July 2014
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KernelVersion: 3.17
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the name assignment type. Possible values are:
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1: enumerated by the kernel, possibly in an unpredictable way
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2: predictably named by the kernel
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3: named by userspace
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4: renamed
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What: /sys/class/net/<iface>/addr_assign_type
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Date: July 2010
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KernelVersion: 3.2
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the address assignment type. Possible values are:
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0: permanent address
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1: randomly generated
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2: stolen from another device
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3: set using dev_set_mac_address
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What: /sys/class/net/<iface>/addr_len
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the hardware address size in bytes.
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Values vary based on the lower-level protocol used by the
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interface (Ethernet, FDDI, ATM, IEEE 802.15.4...). See
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include/uapi/linux/if_*.h for actual values.
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What: /sys/class/net/<iface>/address
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Hardware address currently assigned to this interface.
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Format is a string, e.g: 00:11:22:33:44:55 for an Ethernet MAC
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address.
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What: /sys/class/net/<iface>/broadcast
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Hardware broadcast address for this interface. Format is a
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string, e.g: ff:ff:ff:ff:ff:ff for an Ethernet broadcast MAC
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address.
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What: /sys/class/net/<iface>/carrier
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the current physical link state of the interface.
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Posssible values are:
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0: physical link is down
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1: physical link is up
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Note: some special devices, e.g: bonding and team drivers will
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allow this attribute to be written to force a link state for
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operating correctly and designating another fallback interface.
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What: /sys/class/net/<iface>/dev_id
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Date: April 2008
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KernelVersion: 2.6.26
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the device unique identifier. Format is an hexadecimal
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value. This is used to disambiguate interfaces which might be
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stacked (e.g: VLAN interfaces) but still have the same MAC
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address as their parent device.
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What: /sys/class/net/<iface>/dormant
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Date: March 2006
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KernelVersion: 2.6.17
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Contact: netdev@vger.kernel.org
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Description:
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Indicates whether the interface is in dormant state. Possible
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values are:
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0: interface is not dormant
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1: interface is dormant
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This attribute can be used by supplicant software to signal that
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the device is not usable unless some supplicant-based
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authentication is performed (e.g: 802.1x). 'link_mode' attribute
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will also reflect the dormant state.
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What: /sys/clas/net/<iface>/duplex
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Date: October 2009
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KernelVersion: 2.6.33
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface latest or current duplex value. Possible
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values are:
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half: half duplex
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full: full duplex
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Note: This attribute is only valid for interfaces that implement
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the ethtool get_settings method (mostly Ethernet).
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What: /sys/class/net/<iface>/flags
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface flags as a bitmask in hexadecimal. See
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include/uapi/linux/if.h for a list of all possible values and
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the flags semantics.
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What: /sys/class/net/<iface>/ifalias
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Date: September 2008
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KernelVersion: 2.6.28
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Contact: netdev@vger.kernel.org
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Description:
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Indicates/stores an interface alias name as a string. This can
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be used for system management purposes.
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What: /sys/class/net/<iface>/ifindex
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the system-wide interface unique index identifier as a
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decimal number. This attribute is used for mapping an interface
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identifier to an interface name. It is used throughout the
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networking stack for specifying the interface specific
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requests/events.
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What: /sys/class/net/<iface>/iflink
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the system-wide interface unique index identifier a
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the interface is linked to. Format is decimal. This attribute is
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used to resolve interfaces chaining, linking and stacking.
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Physical interfaces have the same 'ifindex' and 'iflink' values.
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What: /sys/class/net/<iface>/link_mode
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Date: March 2006
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KernelVersion: 2.6.17
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface link mode, as a decimal number. This
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attribute should be used in conjunction with 'dormant' attribute
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to determine the interface usability. Possible values:
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0: default link mode
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1: dormant link mode
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What: /sys/class/net/<iface>/mtu
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface currently configured MTU value, in
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bytes, and in decimal format. Specific values depends on the
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lower-level interface protocol used. Ethernet devices will show
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a 'mtu' attribute value of 1500 unless changed.
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What: /sys/class/net/<iface>/netdev_group
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Date: January 2011
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KernelVersion: 2.6.39
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface network device group, as a decimal
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integer. Default value is 0 which corresponds to the initial
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network devices group. The group can be changed to affect
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routing decisions (see: net/ipv4/fib_rules and
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net/ipv6/fib6_rules.c).
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What: /sys/class/net/<iface>/operstate
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Date: March 2006
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KernelVersion: 2.6.17
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface RFC2863 operational state as a string.
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Possible values are:
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"unknown", "notpresent", "down", "lowerlayerdown", "testing",
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"dormant", "up".
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What: /sys/class/net/<iface>/phys_port_id
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Date: July 2013
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KernelVersion: 3.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface unique physical port identifier within
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the NIC, as a string.
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What: /sys/class/net/<iface>/speed
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Date: October 2009
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KernelVersion: 2.6.33
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface latest or current speed value. Value is
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an integer representing the link speed in Mbits/sec.
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Note: this attribute is only valid for interfaces that implement
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the ethtool get_settings method (mostly Ethernet ).
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What: /sys/class/net/<iface>/tx_queue_len
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface transmit queue len in number of packets,
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as an integer value. Value depend on the type of interface,
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Ethernet network adapters have a default value of 1000 unless
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configured otherwise
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What: /sys/class/net/<iface>/type
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface protocol type as a decimal value. See
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include/uapi/linux/if_arp.h for all possible values.
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