Displaying NIC Information and Statistics


Starting from NetVisor OS  version 6.0.0, you can view the NIC information and packet statistics for management and rear-facing interfaces.


To view the switch NIC information, use the command: switch-nic-info-show.


CLI (network-admin@Leaf1) > switch-nic-info-show


switch-nic-info-show

Display switch NIC information.

name switch-nic-stats-list-name

Specify the name of the interface.


For example, to display the NIC information for the interface eth0, use the command:


CLI (network-admin@Leaf1) > switch-nic-info-show name eth0


name driver version    firmware     speed rxqnum txqnum rxqsize txqsize autoneg rxpause txpause 

---- ------ ------- --------------- ----- ------ ------ ------- ------- ------- ------- ------- 

eth0 igb    5.4.0-k 3.25,0x800005cd 1000    4      4      4096    4096    on      on      off 


The output displays the interface name, driver, version, firmware, speed, reception queue size, and transmitter queue size, among other details.


The switch-nic-stats-show command displays NIC statistics including the number of input packets, input bytes, output packets, output bytes, errors, and drops.


CLI (network-admin@Leaf1) > switch-nic-stats-show

switch-nic-stats-show

Display switch NIC statistics.

time date/time: yyyy-mm-ddTHH:mm:ss

Specify the time to start statistics collection.

start-time date/time: yyyy-mm-ddTHH:mm:ss

Specify the start date and time for statistics collection.

end-time date/time: yyyy-mm-ddTHH:mm:ss

Specify the end date and time for statistics collection.

duration duration: #d#h#m#s

Specify the duration for statistics collection.

interval duration: #d#h#m#s

Specify the interval for statistics collection.

since-start

Displays statistics from the start.

older-than duration: #d#h#m#s

Displays statistics older than the specified date and time.

within-last duration: #d#h#m#s

Displays statistics within the specified duration.

name switch-nic-stats-list name

Specify the name of the interface.


For example, to display the NIC statistics on eth0 interface within last 2 minutes, use the command:


CLI (network-admin@Leaf1) > switch-nic-stats-show name eth0 within-last 2m layout vertical

time:        00:22:35

name:        eth0

ipkts:       3.22M

ibytes:      1.92G

opkts:       1.10M

obytes:      277M

ierrs:       0

oerrs:       0

idrops:      0

odrops:      0

imcast:      2.08M

omcast:      119K

ibcast:      121K

obcast:      37.3K

mcast:       2.08M

bcast:       0

ioverruns:   0

rxnobuf:     0

icrcerrs:    0

iframeerrs:  0

ififoerrs:   0

ofifoerrs:   0

ilongerrs:   0

ishorterrs:  0


To display the statistics between a specified start-time and end-time, use the sample command:


CLI (network-admin@leaf1) > switch-nic-stats-show start-time 2020-07-21T05:00:00 end-time 2020-07-21T06:00:00 layout vertical

time:        05:26:27

name:        eth0

ipkts:       25.2M

ibytes:      3.76G

opkts:       29.7M

obytes:      3.95G

ierrs:       0

oerrs:       0

idrops:      0

odrops:      0

imcast:      834K

omcast:      10.6K

ibcast:      291K

obcast:      352

mcast:       834K

bcast:       0

ioverruns:   0

rxnobuf:     0

icrcerrs:    0

iframeerrs:  0

ififoerrs:   0

ofifoerrs:   0

ilongerrs:   0

ishorterrs:  0

time:        05:26:27


To modify the settings for statistics collection, use the command:


CLI (network-admin@Leaf1) > switch-nic-stats-settings-modify

switch-nic-stats-settings-modify

Modify switch NIC statistics settings.

Specify one or more of the following options:


enable|disable

Enable or disable statistics collection.

interval duration : #d#h#m#s

Specify the time interval to collect NIC statistics. The default value is 1 minute.

disk-space disk-space-number

Specify the disk-space allocated for statistics (including rotated log files). The default value is 50M.


For example, use the command below to modify the interval for statistics collection:


CLI (network-admin@Leaf1) > switch-nic-stats-settings-modify interval 50s


To view the current settings, use the command:


CLI (network-admin@Leaf1) > switch-nic-stats-settings-show

switch:     Leaf1

enable:     yes

interval:   50s

disk-space: 50M

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