netstat -I ix0

From: Victor Gamov <vit_at_otcnet.ru>
Date: Mon, 24 Oct 2022 15:59:14 UTC 
Hi All

On my FreeBSD 12.3-STABLE r372089 GENERIC  amd64 I have a huge amount of 
RX errors on ix0:

=====
# netstat -n -I ix0
Name    Mtu Network       Address              Ipkts Ierrs Idrop 
Opkts Oerrs  Coll
ix0    1500 <Link#1>      a0:36:9f:1d:80:80 2336589698003 774784702245 
   0 1816532334151     0     0
=====

=====
# sysctl dev.ix.0 | grep errs
dev.ix.0.mac_stats.checksum_errs: 774729511713
dev.ix.0.mac_stats.rec_len_errs: 31682
dev.ix.0.mac_stats.byte_errs: 14414734
dev.ix.0.mac_stats.ill_errs: 3034419
dev.ix.0.mac_stats.crc_errs: 54705100
dev.ix.0.mac_stats.rx_errs: 774787585085
=====


Are these errors phy/hw problems e.x. wrong SFP+ hardware/firmware, too 
high / too low RX levels, broken patch cord?  Or may it be some OS errors?


Thanks for any advise!

-- 
CU,
Victor Gamov