After fresh installation of T4-1 server, I’ve noticed a network interface which I didn’t expect – the usbecm2:
root@slc:/# ifconfig -a lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1 inet 127.0.0.1 netmask ff000000 net0: flags=100001000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,PHYSRUNNING> mtu 1500 index 7 inet 139.156.7.116 netmask ffffff00 broadcast 139.156.7.255 ether 0:10:e0:9a:2e:6 usbecm2: flags=100001000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,PHYSRUNNING> mtu 1500 index 14 inet 169.254.182.77 netmask ffffff00 broadcast 169.254.182.255 ether 2:21:28:57:47:17 lo0: flags=2002000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv6,VIRTUAL> mtu 8252 index 1 inet6 ::1/128 net0: flags=120002000840<RUNNING,MULTICAST,IPv6,PHYSRUNNING> mtu 1500 index 7 inet6 ::/0 ether 0:10:e0:9a:2e:6 usbecm2: flags=120002000840<RUNNING,MULTICAST,IPv6,PHYSRUNNING> mtu 1500 index 14 inet6 ::/0 ether 2:21:28:57:47:17
For sure, I don’t need it. So how to disable? The dladm delete-phys does not really work:
root@slc:/# dladm delete-phys usbecm2 dladm: cannot delete 'usbecm2': invalid argument
The only solution I’ve found is to exclude the driver from loading by modifying the /etc/system and rebooting the server:
root@sms:~# vi /etc/system # Disable usbecm2 device exclude: usbecm root@sms:~# shutdown -y -g0 -i6
After the reboot, success! The interface is gone from the list:
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
net0: flags=100001000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,PHYSRUNNING> mtu 1500 index 7
inet 139.156.7.15 netmask ffffff00 broadcast 139.156.7.255
ether 0:10:e0:9a:4a:da
lo0: flags=2002000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv6,VIRTUAL> mtu 8252 index 1
inet6 ::1/128
net0: flags=120002000840<RUNNING,MULTICAST,IPv6,PHYSRUNNING> mtu 1500 index 7
inet6 ::/0
ether 0:10:e0:9a:4a:daBut, it’s still listed on the list of physical links (although in removed state):
root@sms:~# dladm show-phys -P LINK DEVICE MEDIA FLAGS net10 igb10 Ethernet ----- net3 igb7 Ethernet ----- net4 igb0 Ethernet ----- net6 igb2 Ethernet ----- net7 igb3 Ethernet ----- net0 igb4 Ethernet ----- net5 igb1 Ethernet ----- net8 igb8 Ethernet ----- net11 igb11 Ethernet ----- net1 igb5 Ethernet ----- net9 igb9 Ethernet ----- net2 igb6 Ethernet ----- usbecm2 usbecm2 Ethernet r----
Now it’s time to hit it again by dladm delete-phys:
root@sms:~# dladm delete-phys usbecm2
And finally, the link is gone!
root@sms:~# dladm show-phys -P LINK DEVICE MEDIA FLAGS net10 igb10 Ethernet ----- net3 igb7 Ethernet ----- net4 igb0 Ethernet ----- net6 igb2 Ethernet ----- net7 igb3 Ethernet ----- net0 igb4 Ethernet ----- net5 igb1 Ethernet ----- net8 igb8 Ethernet ----- net11 igb11 Ethernet ----- net1 igb5 Ethernet ----- net9 igb9 Ethernet ----- net2 igb6 Ethernet -----
Last reboot for final check and that’s it.
How to disable and remove usbecm2 device from Solaris 11 server