Hi, for the reference, the issue is solved by this config below. Ales ------- cat /etc/network/interfaces auto lo iface lo inet loopback
#auto ens3f0 #iface ens3f0 inet manual #auto ens3f1 #iface ens3f1 inet manual allow-hotplug ens3f0 iface ens3f0 inet manual allow-hotplug ens3f1 iface ens3f1 inet manual auto bond0 iface bond0 inet manual bond-slaves ens3f0 ens3f1 bond-mode 1 bond-primary ens3f1 bond-arp-validate all # Specifies the MII link monitoring frequency in milliseconds. This determines how often the link state of each slave is inspected for link failures. # bond-miimon 500 # bond-downdelay 500 # Specifies the time, in milliseconds, to wait before disabling a slave after a link failure has been detected. # bond-updelay 500 bond-arp-interval 5000 bond-arp-ip-target 10.5.75.1 auto br0.20 iface br0.20 inet static address 10.5.75.144 netmask 255.255.255.0 network 10.5.75.0 broadcast 10.5.75.255 gateway 10.5.75.1 dns-nameservers 10.5.64.4 10.5.65.4 dns-search my-domain bridge_ports bond0.20 bridge_fd 0 bridge_maxwait 0 bridge_stp off auto br0.21 iface br0.21 inet manual dns-nameservers 10.5.64.4 10.5.65.4 dns-search chmi.cz bridge_ports bond0.21 vlan-raw-device bond0 brctl showbridge name bridge id STP enabled interfacesbr0.20 8000.9295da8a5326 no bond0.20br0.21 8000.9295da8a5326 no bond0.21 bridge link12: bond0.20@bond0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master br0.20 state forwarding priority 32 cost 2 14: bond0.21@bond0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master br0.21 state forwarding priority 32 cost 2 ip a s1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever4: ens3f0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond0 state UP group default qlen 1000 link/ether 92:95:da:8a:53:26 brd ff:ff:ff:ff:ff:ff5: ens3f1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond0 state UP group default qlen 1000 link/ether 92:95:da:8a:53:26 brd ff:ff:ff:ff:ff:ff10: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether 92:95:da:8a:53:26 brd ff:ff:ff:ff:ff:ff11: br0.20: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether 92:95:da:8a:53:26 brd ff:ff:ff:ff:ff:ff inet 10.5.75.144/24 brd 10.5.75.255 scope global br0.20 valid_lft forever preferred_lft forever inet6 fe80::9095:daff:fe8a:5326/64 scope link valid_lft forever preferred_lft forever12: bond0.20@bond0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br0.20 state UP group default qlen 1000 link/ether 92:95:da:8a:53:26 brd ff:ff:ff:ff:ff:ff13: br0.21: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether 92:95:da:8a:53:26 brd ff:ff:ff:ff:ff:ff inet6 fe80::9095:daff:fe8a:5326/64 scope link valid_lft forever preferred_lft forever14: bond0.21@bond0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br0.21 state UP group default qlen 1000 link/ether 92:95:da:8a:53:26 brd ff:ff:ff:ff:ff:ff ip route showdefault via 10.5.75.1 dev br0.20 onlink 10.5.75.0/24 dev br0.20 proto kernel scope link src 10.5.75.144 ping 10.5.75.144PING 10.5.75.144 (10.5.75.144) 56(84) bytes of data.64 bytes from 10.5.75.144: icmp_seq=1 ttl=63 time=0.310 ms64 bytes from 10.5.75.144: icmp_seq=2 ttl=63 time=0.400 ms64 bytes from 10.5.75.144: icmp_seq=3 ttl=63 time=0.396 ms64 bytes from 10.5.75.144: icmp_seq=4 ttl=63 time=0.389 ms64 bytes from 10.5.75.144: icmp_seq=5 ttl=63 time=0.385 ms64 bytes from 10.5.75.144: icmp_seq=6 ttl=63 time=0.332 ms64 bytes from 10.5.75.144: icmp_seq=7 ttl=63 time=0.310 ms64 bytes from 10.5.75.144: icmp_seq=8 ttl=63 time=0.398 ms64 bytes from 10.5.75.144: icmp_seq=9 ttl=63 time=0.390 ms64 bytes from 10.5.75.144: icmp_seq=10 ttl=63 time=0.396 ms64 bytes from 10.5.75.144: icmp_seq=11 ttl=63 time=0.312 ms64 bytes from 10.5.75.144: icmp_seq=12 ttl=63 time=0.398 ms^C--- 10.5.75.144 ping statistics ---12 packets transmitted, 12 received, 0% packet loss, time 265msrtt min/avg/max/mdev = 0.310/0.368/0.400/0.037 ms
