Thank you Strahil,

The MTU appears to be set to 1500 according to 'ifconfig'.

Mark

***
Mark Steele
CIO / VP Technical Operations | TelVue Corporation
TelVue - We Share Your Vision
16000 Horizon Way, Suite 100 | Mt. Laurel, NJ 08054
800.885.8886 x128 | msteele@telvue.com | http://www.telvue.com


On Tue, Jul 9, 2019 at 10:14 AM Strahil Nikolov <hunter86_bg@yahoo.com> wrote:
The first thing that comes to my mind is to check the network's MTU.
By default it is 1500, and I suppose you can go with MTU 9000
Also , check if OS is using MTU 9000

Best Regards,
Strahil Nikolov

В вторник, 9 юли 2019 г., 9:58:47 ч. Гринуич-4, Mark Steele <msteele@telvue.com> написа:


It seems that our oVirt instance never exceeds 550Mbps aggregate traffic (rx / tx) according to nvstat. I want to make sure that the negotiated speed, handshaking, etc. are all what I expect them to be from the OS level.

***
Mark Steele
CIO / VP Technical Operations | TelVue Corporation
TelVue - We Share Your Vision
16000 Horizon Way, Suite 100 | Mt. Laurel, NJ 08054
800.885.8886 x128 | msteele@telvue.com | http://www.telvue.com


On Tue, Jul 9, 2019 at 9:52 AM Strahil Nikolov <hunter86_bg@yahoo.com> wrote:
I got the same with latest oVirt.
What exactly do you want to check ?

best Regards,
Strahil Nikolov

В вторник, 9 юли 2019 г., 9:31:55 ч. Гринуич-4, Mark Steele <msteele@telvue.com> написа:


oVirt Enginge Version: 3.5.0.1-1.el6 (yes....I know it's old)

VM is running Ubuntu 18.04 with ovirt agent installed.

I'm attempting to get NIC information by running 'ethtool -i ens3' I get the following:

root@myserver:~# ethtool -i ens3
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
root@myserver:~#

and when I run 'ethtool ens3' I get the following:

root@myserver:~# ethtool ens3
Settings for ens3:
        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


This is not what I expected. Is there another tool I should be using to display the information for ens3 on this server?

Best regards,

***
Mark Steele
CIO / VP Technical Operations | TelVue Corporation
TelVue - We Share Your Vision
16000 Horizon Way, Suite 100 | Mt. Laurel, NJ 08054
800.885.8886 x128 | msteele@telvue.com | http://www.telvue.com
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