ethtool
Link Speed
(1:2107)# ethtool eth0
Settings for eth0:
Supported ports: [ ]
Supported link modes: Not reported
Supported pause frame use: No
Supports auto-negotiation: No
Supported FEC modes: Not reported
Advertised link modes: Not reported
Advertised pause frame use: No
Advertised auto-negotiation: No
Advertised FEC modes: Not reported
Speed: Unknown!
Duplex: Unknown! (255)
Port: Other
PHYAD: 0
Transceiver: internal
Auto-negotiation: off
Link detected: yes
help
(1:2110)# ethtool -h
ethtool version 4.15
Usage:
ethtool DEVNAME Display standard information about device
ethtool -s|--change DEVNAME Change generic options
[ speed %d ]
[ duplex half|full ]
[ port tp|aui|bnc|mii|fibre ]
[ mdix auto|on|off ]
[ autoneg on|off ]
[ advertise %x ]
[ phyad %d ]
[ xcvr internal|external ]
[ wol p|u|m|b|a|g|s|d... ]
[ sopass %x:%x:%x:%x:%x:%x ]
[ msglvl %d | msglvl type on|off ... ]
ethtool -a|--show-pause DEVNAME Show pause options
ethtool -A|--pause DEVNAME Set pause options
[ autoneg on|off ]
[ rx on|off ]
[ tx on|off ]
ethtool -c|--show-coalesce DEVNAME Show coalesce options
ethtool -C|--coalesce DEVNAME Set coalesce options
[adaptive-rx on|off]
[adaptive-tx on|off]
[rx-usecs N]
[rx-frames N]
[rx-usecs-irq N]
[rx-frames-irq N]
[tx-usecs N]
[tx-frames N]
[tx-usecs-irq N]
[tx-frames-irq N]
[stats-block-usecs N]
[pkt-rate-low N]
[rx-usecs-low N]
[rx-frames-low N]
[tx-usecs-low N]
[tx-frames-low N]
[pkt-rate-high N]
[rx-usecs-high N]
[rx-frames-high N]
[tx-usecs-high N]
[tx-frames-high N]
[sample-interval N]
ethtool -g|--show-ring DEVNAME Query RX/TX ring parameters
ethtool -G|--set-ring DEVNAME Set RX/TX ring parameters
[ rx N ]
[ rx-mini N ]
[ rx-jumbo N ]
[ tx N ]
ethtool -k|--show-features|--show-offload DEVNAME Get state of protocol offload and other features
ethtool -K|--features|--offload DEVNAME Set protocol offload and other features
FEATURE on|off ...
ethtool -i|--driver DEVNAME Show driver information
ethtool -d|--register-dump DEVNAME Do a register dump
[ raw on|off ]
[ file FILENAME ]
ethtool -e|--eeprom-dump DEVNAME Do a EEPROM dump
[ raw on|off ]
[ offset N ]
[ length N ]
ethtool -E|--change-eeprom DEVNAME Change bytes in device EEPROM
[ magic N ]
[ offset N ]
[ length N ]
[ value N ]
ethtool -r|--negotiate DEVNAME Restart N-WAY negotiation
ethtool -p|--identify DEVNAME Show visible port identification (e.g. blinking)
[ TIME-IN-SECONDS ]
ethtool -t|--test DEVNAME Execute adapter self test
[ online | offline | external_lb ]
ethtool -S|--statistics DEVNAME Show adapter statistics
ethtool --phy-statistics DEVNAME Show phy statistics
ethtool -n|-u|--show-nfc|--show-ntuple DEVNAME Show Rx network flow classification options or rules
[ rx-flow-hash tcp4|udp4|ah4|esp4|sctp4|tcp6|udp6|ah6|esp6|sctp6 |
rule %d ]
ethtool -N|-U|--config-nfc|--config-ntuple DEVNAME Configure Rx network flow classification options or rules
rx-flow-hash tcp4|udp4|ah4|esp4|sctp4|tcp6|udp6|ah6|esp6|sctp6 m|v|t|s|d|f|n|r... |
flow-type ether|ip4|tcp4|udp4|sctp4|ah4|esp4|ip6|tcp6|udp6|ah6|esp6|sctp6
[ src %x:%x:%x:%x:%x:%x [m %x:%x:%x:%x:%x:%x] ]
[ dst %x:%x:%x:%x:%x:%x [m %x:%x:%x:%x:%x:%x] ]
[ proto %d [m %x] ]
[ src-ip IP-ADDRESS [m IP-ADDRESS] ]
[ dst-ip IP-ADDRESS [m IP-ADDRESS] ]
[ tos %d [m %x] ]
[ tclass %d [m %x] ]
[ l4proto %d [m %x] ]
[ src-port %d [m %x] ]
[ dst-port %d [m %x] ]
[ spi %d [m %x] ]
[ vlan-etype %x [m %x] ]
[ vlan %x [m %x] ]
[ user-def %x [m %x] ]
[ dst-mac %x:%x:%x:%x:%x:%x [m %x:%x:%x:%x:%x:%x] ]
[ action %d ]
[ loc %d]] |
delete %d
ethtool -T|--show-time-stamping DEVNAME Show time stamping capabilities
ethtool -x|--show-rxfh-indir|--show-rxfh DEVNAME Show Rx flow hash indirection table and/or RSS hash key
ethtool -X|--set-rxfh-indir|--rxfh DEVNAME Set Rx flow hash indirection table and/or RSS hash key
[ equal N | weight W0 W1 ... | default ]
[ hkey %x:%x:%x:%x:%x:.... ]
[ hfunc FUNC ]
ethtool -f|--flash DEVNAME Flash firmware image from the specified file to a region on the device
FILENAME [ REGION-NUMBER-TO-FLASH ]
ethtool -P|--show-permaddr DEVNAME Show permanent hardware address
ethtool -w|--get-dump DEVNAME Get dump flag, data
[ data FILENAME ]
ethtool -W|--set-dump DEVNAME Set dump flag of the device
N
ethtool -l|--show-channels DEVNAME Query Channels
ethtool -L|--set-channels DEVNAME Set Channels
[ rx N ]
[ tx N ]
[ other N ]
[ combined N ]
ethtool --show-priv-flags DEVNAME Query private flags
ethtool --set-priv-flags DEVNAME Set private flags
FLAG on|off ...
ethtool -m|--dump-module-eeprom|--module-info DEVNAME Query/Decode Module EEPROM information and optical diagnostics if available
[ raw on|off ]
[ hex on|off ]
[ offset N ]
[ length N ]
ethtool --show-eee DEVNAME Show EEE settings
ethtool --set-eee DEVNAME Set EEE settings
[ eee on|off ]
[ advertise %x ]
[ tx-lpi on|off ]
[ tx-timer %d ]
ethtool --set-phy-tunable DEVNAME Set PHY tunable
[ downshift on|off [count N] ]
ethtool --get-phy-tunable DEVNAME Get PHY tunable
[ downshift ]
ethtool --reset DEVNAME Reset components
[ flags %x ]
[ mgmt ]
[ mgmt-shared ]
[ irq ]
[ irq-shared ]
[ dma ]
[ dma-shared ]
[ filter ]
[ filter-shared ]
[ offload ]
[ offload-shared ]
[ mac ]
[ mac-shared ]
[ phy ]
[ phy-shared ]
[ ram ]
[ ram-shared ]
[ ap ]
[ ap-shared ]
[ dedicated ]
[ all ]
ethtool --show-fec DEVNAME Show FEC settings
ethtool --set-fec DEVNAME Set FEC settings
[ encoding auto|off|rs|baser ]
ethtool -h|--help Show this help
ethtool --version Show version number
Firmware
(1:2111)# ethtool -i eth0
driver: virtio_net
version: 1.0.0
firmware-version:
expansion-rom-version:
bus-info: 0000:00:03.0
supports-statistics: no
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no
Ring Parameters
(1:2113)# ethtool -g eth0
Ring parameters for eth0:
Pre-set maximums:
RX: 256
RX Mini: 0
RX Jumbo: 0
TX: 256
Current hardware settings:
RX: 256
RX Mini: 0
RX Jumbo: 0
TX: 256
Features
(1:2114)# ethtool -k eth0
Features for eth0:
rx-checksumming: on [fixed]
tx-checksumming: on
tx-checksum-ipv4: off [fixed]
tx-checksum-ip-generic: on
tx-checksum-ipv6: off [fixed]
tx-checksum-fcoe-crc: off [fixed]
tx-checksum-sctp: off [fixed]
scatter-gather: on
tx-scatter-gather: on
tx-scatter-gather-fraglist: off [fixed]
tcp-segmentation-offload: on
tx-tcp-segmentation: on
tx-tcp-ecn-segmentation: on
tx-tcp-mangleid-segmentation: off
tx-tcp6-segmentation: on
udp-fragmentation-offload: off
generic-segmentation-offload: on
generic-receive-offload: on
large-receive-offload: off [fixed]
rx-vlan-offload: off [fixed]
tx-vlan-offload: off [fixed]
ntuple-filters: off [fixed]
receive-hashing: off [fixed]
highdma: on [fixed]
rx-vlan-filter: on [fixed]
vlan-challenged: off [fixed]
tx-lockless: off [fixed]
netns-local: off [fixed]
tx-gso-robust: on [fixed]
tx-fcoe-segmentation: off [fixed]
tx-gre-segmentation: off [fixed]
tx-gre-csum-segmentation: off [fixed]
tx-ipxip4-segmentation: off [fixed]
tx-ipxip6-segmentation: off [fixed]
tx-udp_tnl-segmentation: off [fixed]
tx-udp_tnl-csum-segmentation: off [fixed]
tx-gso-partial: off [fixed]
tx-sctp-segmentation: off [fixed]
tx-esp-segmentation: off [fixed]
fcoe-mtu: off [fixed]
tx-nocache-copy: off
loopback: off [fixed]
rx-fcs: off [fixed]
rx-all: off [fixed]
tx-vlan-stag-hw-insert: off [fixed]
rx-vlan-stag-hw-parse: off [fixed]
rx-vlan-stag-filter: off [fixed]
l2-fwd-offload: off [fixed]
hw-tc-offload: off [fixed]
esp-hw-offload: off [fixed]
esp-tx-csum-hw-offload: off [fixed]
rx-udp_tunnel-port-offload: off [fixed]
1401/3944MB 0.04 0.03 0.01 1/195 29847
[29774:29671 0:2115] 12:28:09 Wed Aug 09 [root@somedomain:/dev/pts/0 +1] ~
(1:2115)# ethtool -i eth0
driver: virtio_net
version: 1.0.0
firmware-version:
expansion-rom-version:
bus-info: 0000:00:03.0
supports-statistics: no
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no
Channel parameters
(1:2118)# ethtool -l eth0
Channel parameters for eth0:
Pre-set maximums:
RX: 0
TX: 0
Other: 0
Combined: 1
Current hardware settings:
RX: 0
TX: 0
Other: 0
Combined: 1
Permanent Address
(1:2119)# ethtool -P eth0
Permanent address: 06:cb:99:15:ee:d0