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NAME | SYNOPSIS | DESCRIPTION | EXAMPLES | SEE ALSO | AUTHOR | COLOPHON |
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IP-STATS(8) Linux IP-STATS(8)
ip-stats - manage and show interface statistics
ip stats { COMMAND | help }
ip stats show [ dev DEV ] [ group GROUP [ subgroup SUBGROUP [
suite SUITE ] ... ] ... ] ...
ip stats set dev DEV l3_stats { on | off }
ip stats set
is used for toggling whether a certain HW statistics suite
is collected on a given netdevice. The following
statistics suites are supported:
l3_stats L3 stats reflect traffic that takes place in a HW
device on an object that corresponds to the given
software netdevice.
ip stats show
is used for showing stats on a given netdevice, or dumping
statistics across all netdevices. By default, all stats
are requested. It is possible to filter which stats are
requested by using the group and subgroup keywords.
It is possible to specify several groups, or several
subgroups for one group. When no subgroups are given for a
group, all the subgroups are requested.
The following groups are recognized:
group link - Link statistics. The same suite that "ip -s
link show" shows.
group offload - A group that contains a number of HW-
oriented statistics. See below for individual
subgroups within this group.
group xstats - Extended statistics. A subgroup identifies
the type of netdevice to show the statistics for.
group xstats_slave - Extended statistics for the slave of
a netdevice of a given type. A subgroup identifies
the type of master netdevice.
group afstats - A group for address-family specific
netdevice statistics.
group offload subgroups:
subgroup cpu_hit - The cpu_hit statistics suite is useful
on hardware netdevices. The link statistics on
these devices reflect both the hardware- and
software-datapath traffic. The cpu_hit statistics
then only reflect software-datapath traffic.
subgroup hw_stats_info - This suite does not include
traffic statistics, but rather communicates the
state of other statistics. Through this subgroup,
it is possible to discover whether a given
statistic was enabled, and when it was, whether any
device driver actually configured its device to
collect these statistics. For example, l3_stats was
enabled in the following case, but no driver has
installed it:
# ip stats show dev swp1 group offload subgroup
hw_stats_info
56: swp1: group offload subgroup hw_stats_info
l3_stats on used off
After an L3 address is added to the netdevice, the
counter will be installed:
# ip addr add dev swp1 192.0.2.1/28
# ip stats show dev swp1 group offload subgroup
hw_stats_info
56: swp1: group offload subgroup hw_stats_info
l3_stats on used on
subgroup l3_stats - These statistics reflect L3 traffic
that takes place in HW on an object that
corresponds to the netdevice. Note that this suite
is disabled by default and needs to be first
enabled through ip stats set.
For example:
# ip stats show dev swp2.200 group offload subgroup
l3_stats
112: swp2.200: group offload subgroup l3_stats on
used on
RX: bytes packets errors dropped mcast
8900 72 2 0 3
TX: bytes packets errors dropped
7176 58 0 0
Note how the l3_stats_info for the selected group
is also part of the dump.
group xstats and group xstats_slave subgroups:
subgroup bridge [ suite stp ] [ suite mcast ] - Statistics
for STP and, respectively, IGMP / MLD (under the
keyword mcast) traffic on bridges and their slaves.
subgroup bond [ suite 802.3ad ] - Statistics for LACP
traffic on bond devices and their slaves.
group afstats subgroups:
subgroup mpls - Statistics for MPLS traffic seen on the
netdevice. For example:
# ip stats show dev veth01 group afstats subgroup
mpls
3: veth01: group afstats subgroup mpls
RX: bytes packets errors dropped noroute
0 0 0 0 0
TX: bytes packets errors dropped
216 2 0 0
# ip stats set dev swp1 l3_stats on
Enables collection of L3 HW statistics on swp1.
# ip stats show group offload
Shows all offload statistics on all netdevices.
# ip stats show dev swp1 group link
Shows link statistics on the given netdevice.
ip(8), ip-link(8),
Manpage by Petr Machata.
This page is part of the iproute2 (utilities for controlling
TCP/IP networking and traffic) project. Information about the
project can be found at
⟨http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2⟩.
If you have a bug report for this manual page, send it to
netdev@vger.kernel.org, shemminger@osdl.org. This page was
obtained from the project's upstream Git repository
⟨https://git.kernel.org/pub/scm/network/iproute2/iproute2.git⟩ on
2023-12-22. (At that time, the date of the most recent commit
that was found in the repository was 2023-12-20.) If you
discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for
the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original
manual page), send a mail to man-pages@man7.org
iproute2 16 Mar 2022 IP-STATS(8)
Pages that refer to this page: ip(8)
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HTML rendering created 2023-12-22 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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