[ovirt-users] Re: interface up when not used

Le 25 juil. 2018 à 13:42, Edward Haas <ehaas(a)redhat.com&gt; a écrit : On Tue, Jul 24, 2018 at 1:08 PM, Fabrice Bacchella <fabrice.bacchella(a)orange.fr <mailto:fabrice.bacchella@orange.fr>> wrote: > Le 24 juil. 2018 à 11:50, Dominik Holler <dholler(a)redhat.com <mailto:dholler@redhat.com>> a écrit : > > On Tue, 24 Jul 2018 11:04:58 +0200 > Fabrice Bacchella <fabrice.bacchella(a)orange.fr <mailto:fabrice.bacchella@orange.fr>> wrote: > >> To monitoring the network interfaces, I have a script that check if >> ifAdminStatus and ifOperStatus values matches in snmp. >> >> But with oVirt it fails on a server with 4 physical interfaces, but >> only two connected, and return an error: >> > > You want that eth0 and eth1 are UP, and eth2 and eth3 are DOWN? Yes. > >> snmptable XXX IF-MIB::ifTable | less >> SNMP table: IF-MIB::ifTable >> >> ifIndex ifDescr ifAdminStatus ifOperStatus >> 1 lo up up >> 2 eth0 up up >> 3 eth1 up up >> 4 eth2 up down >> 5 eth3 up down >> 24 ;vdsmdummy; down down >> 25 vnet0 up up >> >> >> And indeed on the server: >> >> ip link show eth2 >> 4: eth2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state >> DOWN mode DEFAULT group default qlen 1000 link/ether >> 40:a8:f0:30:81:1a brd ff:ff:ff:ff:ff:ff >> > > looks like eth2 is DOWN, as expected. It's in state DOWN, but marked UP anyway. A really DOWN interface is shown as (on another server, not an ovirt host): 4: eth2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ether a0:d3:c1:fa:8c:8a brd ff:ff:ff:ff:ff:ff > > eth2 seems to be in state DOWN, which seems to be reflected in > ifOperStatus. Yes it match. The state is reflected in the ifOperStatus. The ifAdminStatus match the UP in the <...> > > Is the issue that ifAdminStatus is up for eth2 and eth3, but you want > it to be down? That's it. I never ask it to be in such state. If eth2 and eth3 are not defined under oVirt control, I see no reason for the system to touch it. Perhaps, you machine has these interfaces under NetworkManager control (you can do "nmcli device" to check it), in that case, NM will keep the admin state up and monitor it. If you want it down, mark the interfaces as unmanaged (by NM) and perform an ifdown on them. Let us know if it helped.