[ovirt-users] Info on network interface threshold alert

[Alona Kaplan]

Hi,

The calculation of the tx rate in percentage is -

txDiff = currentCumulativeTx - previousCumulativeTx
timeSlot = currentTime - previousTime

txRate = txDiff / timeSlot

ratePercentage = 100 *  txRate / speed

The message is displayed in case 'ratePercentage' is bigger than 95%.

If you have 'dwh' installed you can see the history.

Alona.
tx

On Wed, Mar 8, 2017 at 11:30 AM, Gianluca Cecchi <gianluca.cecchi at gmail.com>
wrote:

> Hello,
> this morning I get these two messages regarding bond1 and its active
> interface on one host (ovmsrv07):
>
> Host ovmsrv07 has network interface which exceeded the defined threshold
> [95%] (bond1: transmit rate[96%], receive rate [0%])
>
> Host ovmsrv07 has network interface which exceeded the defined threshold
> [95%] (enp7s4f0: transmit rate[96%], receive rate [0%])
>
> Actually there is no particular network activity during this latest
> night...
> There have been some different resore jobs during past days...
> How is determined this message? Is it perhaps cumulative?
>
> On the host there are 3 VMs and only one of them actively using the
> network.
> In its "Network Interfaces subtab I see
> Total RX (bytes)
> 542,696,952,529
>
> Inside VM OS:
> $ uptime
>  10:26:50 up 14 days,  1:35,  3 users,  load average: 0.00, 0.04, 0.05
>
> $ ifconfig eth0
> eth0      Link encap:Ethernet  HWaddr 00:1A:4A:17:01:5B
>           inet addr:10.4.4.66  Bcast:10.4.4.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:40280066 errors:0 dropped:612718 overruns:0 frame:0
>           TX packets:21110417 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:193066319488 (179.8 GiB)  TX bytes:20983189756 (19.5
> GiB)
>
> Almost confirmaed on host where I have these counter indeed, but I think
> they are cumulative for the VM, and not an alert in se....
>
> ON ovmsrv07:
> $ ifconfig bond1
> bond1: flags=5187<UP,BROADCAST,RUNNING,MASTER,MULTICAST>  mtu 9000
>         ether 00:1c:c4:ab:3a:dd  txqueuelen 1000  (Ethernet)
>         RX packets 140610596  bytes 200368822262 (186.6 GiB)
>         RX errors 0  dropped 126874  overruns 0  frame 0
>         TX packets 33886066  bytes 21972025081 (20.4 GiB)
>         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
>
> $ cat /proc/net/bonding/bond1
> Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
>
> Bonding Mode: fault-tolerance (active-backup)
> Primary Slave: None
> Currently Active Slave: enp7s4f0
> MII Status: up
> MII Polling Interval (ms): 100
> Up Delay (ms): 0
> Down Delay (ms): 0
>
> Slave Interface: enp7s4f0
> MII Status: up
> Speed: 1000 Mbps
> Duplex: full
> Link Failure Count: 0
> Permanent HW addr: 00:1c:c4:ab:3a:dd
> Slave queue ID: 0
>
> Slave Interface: enp7s4f1
> MII Status: up
> Speed: 1000 Mbps
> Duplex: full
> Link Failure Count: 0
> Permanent HW addr: 00:1c:c4:ab:3a:de
> Slave queue ID: 0
>
> Could anyone clarify?
>
> Thanks,
> Gianluca
>
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