Interface ERRORS IN counters wrong? Cosmetic issue, bug or real problem?

[stefan00]

Hi,

The ERRORS IN counters show some weird, enormous numbers - in the 10^18 range. Is this cosmetic, a bug, or something wrong? I've seen this counters earlier already, not specific to the latest 24.7 update. Known issue?

screenshot see attachment.

OPNsense 24.7.7-amd64
FreeBSD 14.1-RELEASE-p5

HW: DEC3850

best&thanks,
stefan

[Seimus]

What is that interface?
I see you have VLANs is that Interface the Parent for those VLANs?

Regards,
S.

[stefan00]

I see you have VLANs is that Interface the Parent for those VLANs?

Yes, it is. But I don't think that's the problem.

Also, that number does not grow anymore. How could it, there is no chance to have 2^64 events ;-)

[Seimus]

Its common to see such errors in case you have a Parent interface assigned.
If you have VLANs for example the parent interface should be unassigned.

https://docs.opnsense.org/manual/how-tos/vlan_and_lagg.html#add-vlan-interfaces

Regards,
S.

[stefan00]

If you have VLANs for example the parent interface should be unassigned.

should, but don't have to ;-)

In this specific case I need to manually configure the link speed/mode since I use a Twinax cable and have some old switch on the other side. Unless manually configured, connection fails.

No IPs assigned on HW interface, no other errors, no errors on the switch side.

So to me it seems like something is wrong with the errors in reporting value.

[stefan00]

Interesting discovery: netstat shows a similar value, but not exactly the same (shouldn't it?).

Code Select Expand

root@DEC3850:~ # netstat -I ax0
Name    Mtu Network        Address                            Ipkts                 Ierrs                 Idrop      Opkts                 Oerrs                  Coll
ax0    1500 <Link#5>       f4:90:ea:00:64:37               81075814  18446744073709551500                     0  299476472                     0                     0
ax0       - fe80::%ax0/64  fe80::f690:eaff:fe00:6437%ax0          0                     -                     -          0                     -                     -
root@DEC3850:~ #


OPNsense UI:  18446744073709552000
netstat:      18446744073709551500

It would be pretty interesting to know what's the reason for this strange behavior.

OT: 24 series is awesome, thanks for the hard work :)

[Seimus]

I think, somewhere on the forum there was a discussion about this. I can not remember what was the reason for those errors...

How ever if you have this setup Parent (assigned) + child Interface (such as VLANs) it tends to sometimes create crazy amount of errors on the Parent. Usually shouldn't cause any performance impact. So you are correct it should be a cosmetic BUG.

Sadly there is no possibility to clear counters on interfaces in FreeBSD, the only way is to reboot the device..

Regards,
S.