Dear Olivier, I have a strange effect when creating vlan interface. I am using: # show version BSD Router Project version: 1.93 Console: serial Based on: FreeBSD 12.0-STABLE amd64 # uname -a FreeBSD host2 12.0-STABLE FreeBSD 12.0-STABLE #0 r348234M: Fri May 24 15:01:39 CEST 2019 oliv...@lame4.bsdrp.net:/usr/local/BSDRP/workdir/BSDRPstable.amd64/usr/local/BSDRP/BSDRPstable/FreeBSD/src/amd64.amd64/sys/amd64 amd64
# dmesg | grep igb1 ... igb1: <Intel(R) PRO/1000 PCI-Express Network Driver> port .... .... # ifconfig igb1 igb1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=e120bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,WOL_MAGIC,VLAN_HWFILTER,RXCSUM_IPV6,TXCSUM_IPV6> ether xx:xx:xx:xx:xx:xx inet6 YYYYYYYYYYYYY%igb1 prefixlen 64 scopeid 0x2 media: Ethernet autoselect (1000baseT <full-duplex>) status: active nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> When I create vlan interface the vlandev interface goes down and then up causing all vlan interfaces configured on this vlandev interface to flap: ifconfig igb1.2000 create vlan 2000 vlandev igb1 in /var/log/messages I get: Sep 24 06:47:21 host2 kernel: igb1: link state changed to DOWN Sep 24 06:47:21 host2 kernel: igb1.1105: link state changed to DOWN Sep 24 06:47:21 host2 kernel: igb1.1198: link state changed to DOWN Sep 24 06:47:21 host2 kernel: igb1.1122: link state changed to DOWN ..... ..... Sep 24 06:47:25 host2 kernel: igb1: link state changed to UP Sep 24 06:47:25 host2 kernel: igb1.1105: link state changed to UP Sep 24 06:47:25 balkan2 kernel: igb1.1198: link state changed to UP Sep 24 06:47:25 balkan2 kernel: igb1.1122: link state changed to UP I have less than 30 interfaces configured on that system. Any ideas how to track this? Regards, Lyubo
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