Hi folks, I'm using Debian 10 (point release 5) and i've set up the bonding for eth0 and eth1 in 'active-backup' mode, i'm using virtualbox VM for testing it, if i disconnect cable (virtually from first ethernet - eth0) ping to bond0 IP stops and if i disconnect it from eth1 and reconnect on eth0 ping again start working. Do not really know what is wrong!
Problem in [1] (searched mail archives) is same but no solution is given there or user did not respond further on it, he/she might have found the solution already, though there are some tests which i've performed as mentioned in [1] and without bonding (dual network mode) I can ping both IP from remote. In this setup i'm using a D-Link 8 port switch to connect eth0 using ethernet cable and eth1 is connected on wireless adapter of my laptop. Does somebody know what may be wrong? [2] bonding output: user@myhost:~$ cat /proc/net/bonding/bond0 Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011) Bonding Mode: fault-tolerance (active-backup) Primary Slave: eth0 (primary_reselect always) Currently Active Slave: eth0 MII Status: up MII Polling Interval (ms): 100 Up Delay (ms): 200 Down Delay (ms): 200 Slave Interface: eth0 MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 0 Permanent HW addr: 08:00:27:be:86:95 Slave queue ID: 0 Slave Interface: eth1 MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 0 Permanent HW addr: 08:00:27:3a:6e:db Slave queue ID: 0 [3] configuration : /etc/network/interfaces user@myhost:~$ cat /etc/network/interfaces # this file describes the network interfaces available on your system # and how to activate them. for more information, see interfaces(5). # the loopback network interface auto lo iface lo inet loopback auto bond0 iface bond0 inet static address 192.168.0.140 netmask 255.255.255.0 gateway 192.168.0.1 bond-slaves eth0 eth1 bond-mode active-backup bond-miimon 100 bond-primary eth0 bond-downdelay 200 bond-updelay 200 post-up route add -net 224.0.0.0 netmask 240.0.0.0 dev bond0 Thank you. Note : As soon as one interface cable is disconnected another interface becomes active interfaces - this is visible. Regards, [1] https://lists.debian.org/debian-user/2012/01/msg01790.html [2] bonding output [3] network configuration under /etc/network/interfaces
