We have a 433 that is creating giant packets from ether2. It is running 3.11 presently and have not had reason to upgrade. The giant packets appear 3-4 per minute and it’s probably passing 10-15 mbps.
ether1 is not producing any giants. I wonder if it’s caused by vlans or ethernet drivers? I have not seen anything about this in the recent search results.
Mikrotik output:
Switch port 14 output (hp2524) for ether2.
set up logging on routeros interface (preferably set logging to host)reset both counters and see, what routerboard thinks it is sending out, and what is other end receiving.
do these numbers increase if more traffic is passed through?
What do they mean by Giant?
I would say that since the error count is exactly the same as the RX errors it has to do with something else, probably when linkstate changes or a cable is pinched.
The error count is a count of all the errors including the giant packets.
A giant packet is a packet larger than the max bytes a vlan tagged ethernet packet should be (1522 bytes), or 1518 for a non vlan packet.
HP fingerpoints to an ethernet NIC or driver issue. http://www.hp.com/rnd/library/troubleshoot_lan.htm
It’s not causing a perceptible problem, but it’s a very important link which I keep a close eye on.
I’m not quite sure how to set interface logging for that.
/system logging doens’t have anything ethernet options.
Oddly, /system logging> set 0 ? says disabled will turn off mac telnet server which seems like an strange place for that setting.