Bond Mode 1 （Active-Backup）,vm unreachable for minutes when bond link change
Hello, I've a problem, all my ovirt hosts and vms are linked with a bonding mode 1（Active-Backup）2x10Gbps ovirt version：4.3 topology： ----------eno2 vm----------ovirtmgmt------bond0-----------eno1 ifcfg-bond0： # Generated by VDSM version 4.30.9.1 DEVICE=bond0 BONDING_OPTIOS='mode=1 miion=100' BRIDGE=ovirtmgmt MACADDR=a4:be:26:16:e9:b2 ONBOOT=yes MTU=1500 DEFROUTE=no NM_CONTROLLER=no IPV6INIT=no ifcfg-eno1: # Generated by VDSM version 4.30.9.1 DEVICE=eno1 MASTER=bond0 SLAVE=yes ONBOOT=yes MTU=1500 DEFROUTE=no NM_CONTROLLER=no IPV6INIT=no ifcfg-eno2: # Generated by VDSM version 4.30.9.1 DEVICE=eno2 MASTER=bond0 SLAVE=yes ONBOOT=yes MTU=1500 DEFROUTE=no NM_CONTROLLER=no IPV6INIT=no ifcfg-ovirtmgmt: # Generated by VDSM version 4.30.9.1 DEVICE=ovirtmgmt TYPE=Brodge DELAY=0 STP=off ONBOOT=yes IPADDR=x.x.x.x NEYMASK=255.255.255.0 GATEWAY=x.x.x.x BOOTPROTO=none MTU=1500 DEFROUTE=yes NM_CONTROLLER=no IPV6INIT=yes IPV6_AUTOCONF=yes cat /proc/net/bonding/bond0 Ethernet Chanel Bonding Driver:v3.7.1(April 27, 2011) Bonding Mode:fault-tolerance(active-ackup) Primary Slave:none Currently Active Slave:eno1 MII Status:up MII Polling Intercal (ms):100 Up Delay (ms) : 0 Down Delay (ms) : 0 Slave Interface :eno1 MII Status:up Speed : 10000 Mbps Link Failure Count : 0 Permanent HW addr :a4:be:26:16:e9:b2 Slave queue ID: 0 Slave Interface :eno2 MII Status:up Speed : 10000 Mbps Link Failure Count : 0 Permanent HW addr :a4:be:26:16:e9:b2 Slave queue ID: 0 ping vm from different subnet. Eveything is okay if I don't change bond link interface。When I unplug Currently Active Slave eno1,bond link change to eno2 as expected but vm become unreachable until external physical switch MAC Table ageing time expired.It seems that vm doesn't sent gratuitous ARP when bond link change. How can I fix if? vm os is Centos 7.5 ovirt version 4.2 also tested.
On May 25, 2019 5:04:33 AM GMT+03:00, henaumars@sina.com wrote:
Hello,
I've a problem, all my ovirt hosts and vms are linked with a bonding mode 1（Active-Backup）2x10Gbps ovirt version：4.3 topology： ----------eno2 vm----------ovirtmgmt------bond0-----------eno1
ifcfg-bond0： # Generated by VDSM version 4.30.9.1 DEVICE=bond0 BONDING_OPTIOS='mode=1 miion=100' BRIDGE=ovirtmgmt MACADDR=a4:be:26:16:e9:b2 ONBOOT=yes MTU=1500 DEFROUTE=no NM_CONTROLLER=no IPV6INIT=no Shouldn't it be 'NM_CONTROLLED' ?
ifcfg-eno1: # Generated by VDSM version 4.30.9.1 DEVICE=eno1 MASTER=bond0 SLAVE=yes ONBOOT=yes MTU=1500 DEFROUTE=no NM_CONTROLLER=no IPV6INIT=no
Shouldn't it be 'NM_CONTROLLED' ?
ifcfg-eno2: # Generated by VDSM version 4.30.9.1 DEVICE=eno2 MASTER=bond0 SLAVE=yes ONBOOT=yes MTU=1500 DEFROUTE=no NM_CONTROLLER=no IPV6INIT=no
Shouldn't it be 'NM_CONTROLLED' ?
ifcfg-ovirtmgmt: # Generated by VDSM version 4.30.9.1 DEVICE=ovirtmgmt TYPE=Brodge DELAY=0 STP=off ONBOOT=yes IPADDR=x.x.x.x NEYMASK=255.255.255.0 GATEWAY=x.x.x.x BOOTPROTO=none MTU=1500 DEFROUTE=yes NM_CONTROLLER=no IPV6INIT=yes IPV6_AUTOCONF=yes
Shouldn't it be 'TYPE=BRIDGE' ? Also, Check that there are no 'ifcfg-XXX.bkp' in the folder as the network script will read it.If there is any -move it to /root.
cat /proc/net/bonding/bond0 Ethernet Chanel Bonding Driver:v3.7.1(April 27, 2011)
Bonding Mode:fault-tolerance(active-ackup) Primary Slave:none Currently Active Slave:eno1 MII Status:up MII Polling Intercal (ms):100 Up Delay (ms) : 0 Down Delay (ms) : 0
Slave Interface :eno1 MII Status:up Speed : 10000 Mbps Link Failure Count : 0 Permanent HW addr :a4:be:26:16:e9:b2 Slave queue ID: 0
Slave Interface :eno2 MII Status:up Speed : 10000 Mbps Link Failure Count : 0 Permanent HW addr :a4:be:26:16:e9:b2 Slave queue ID: 0 As you have a bridge, maybe setting a delay might help. What is the output once you plug the second NIC out?
ping vm from different subnet.
Eveything is okay if I don't change bond link interface。When I unplug Currently Active Slave eno1,bond link change to eno2 as expected but vm become unreachable until external physical switch MAC Table ageing time expired.It seems that vm doesn't sent gratuitous ARP when bond link change. How can I fix if?
vm os is Centos 7.5 ovirt version 4.2 also tested.
CentOS 7.5 is quite old and could have some bugs - consider updating !!! Best Regards, Strahil Nikolov Check inline.
Glade to hear you, sorry for so much spelling mistakes。 I update my vm os to cnetos7.6 and change my bond configuretion as： ifcfg-bond0： # Generated by VDSM version 4.30.9.1 DEVICE=bond0 BONDING_OPTIOS='mode=1 miion=100 downdelay=200 updelay=200' BRIDGE=ovirtmgmt MACADDR=a4:be:26:16:e9:b2 ONBOOT=yes MTU=1500 DEFROUTE=no NM_CONTROLLED=no IPV6INIT=no And there are no 'ifcfg-XXX.bkp' in the network-scripts folder。 But the vm still unreachable when bond link change。 When I plug the second NIC out，the message puts： localhost kernel: bond0 :Releasing backup interface eno1 localhost kernel: device eno1 left promiscuous mode localhost kernel: bond0 : making interface eno2 the new active one localhost kernel: device eno2 entered promiscuous mode localhost kernel: i40e 0000:1a:00.0 eno1: returing to hw mac address a4:be:26:16:e9:b1 localhost lldpad: recvfrom(Event interface) : No buffer space availabe
On Sat, May 25, 2019 at 5:06 AM <henaumars@sina.com> wrote:
Hello,
I've a problem, all my ovirt hosts and vms are linked with a bonding mode 1（Active-Backup）2x10Gbps ovirt version：4.3 topology： ----------eno2 vm----------ovirtmgmt------bond0-----------eno1
ifcfg-bond0： # Generated by VDSM version 4.30.9.1 DEVICE=bond0 BONDING_OPTIOS='mode=1 miion=100' BRIDGE=ovirtmgmt MACADDR=a4:be:26:16:e9:b2 ONBOOT=yes MTU=1500 DEFROUTE=no NM_CONTROLLER=no IPV6INIT=no
ifcfg-eno1: # Generated by VDSM version 4.30.9.1 DEVICE=eno1 MASTER=bond0 SLAVE=yes ONBOOT=yes MTU=1500 DEFROUTE=no NM_CONTROLLER=no IPV6INIT=no
ifcfg-eno2: # Generated by VDSM version 4.30.9.1 DEVICE=eno2 MASTER=bond0 SLAVE=yes ONBOOT=yes MTU=1500 DEFROUTE=no NM_CONTROLLER=no IPV6INIT=no
ifcfg-ovirtmgmt: # Generated by VDSM version 4.30.9.1 DEVICE=ovirtmgmt TYPE=Brodge DELAY=0 STP=off ONBOOT=yes IPADDR=x.x.x.x NEYMASK=255.255.255.0 GATEWAY=x.x.x.x BOOTPROTO=none MTU=1500 DEFROUTE=yes NM_CONTROLLER=no IPV6INIT=yes IPV6_AUTOCONF=yes
cat /proc/net/bonding/bond0 Ethernet Chanel Bonding Driver:v3.7.1(April 27, 2011)
Bonding Mode:fault-tolerance(active-ackup) Primary Slave:none Currently Active Slave:eno1 MII Status:up MII Polling Intercal (ms):100 Up Delay (ms) : 0 Down Delay (ms) : 0
Slave Interface :eno1 MII Status:up Speed : 10000 Mbps Link Failure Count : 0 Permanent HW addr :a4:be:26:16:e9:b2 Slave queue ID: 0
Slave Interface :eno2 MII Status:up Speed : 10000 Mbps Link Failure Count : 0 Permanent HW addr :a4:be:26:16:e9:b2 Slave queue ID: 0
ping vm from different subnet.
Eveything is okay if I don't change bond link interface。When I unplug Currently Active Slave eno1,bond link change to eno2 as expected but vm become unreachable until external physical switch MAC Table ageing time expired.It seems that vm doesn't sent gratuitous ARP when bond link change. How can I fix if?
There is no reason for the VM OS to send anything as it is unaware of the change you have done in the network. It should work fine if you perform this operation from oVirt Management, as it will cause the interfaces to be set down and up again (I would expect the links to go down as a result), causing the switch ports to flush its mac address table.
vm os is Centos 7.5 ovirt version 4.2 also tested. _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/CUC67VZ7WNW5M4...
participants (3)
-
Edward Haas -
henaumars＠sina.com -
Strahil Nikolov