On 09/06/2012 12:19 PM, SilverTip257 wrote: > My question to the members of this list is what bonding mode(s) are > you using for a high availability setup? > I welcome any advice/tips/gotchas on bridging to a bonded interface. I'm not sure I'd call this high availability... but here's an example of bonding two ethernet ports (eth0 and eth1) together into a bond (mode 4) and then setting up a bridge for a VLAN (id 375) that some VMs can run on: [root@kvm01a network-scripts]# grep -iv hwadd ifcfg-eth0 DEVICE=eth0 SLAVE=yes MASTER=bond0 [root@kvm01a network-scripts]# grep -iv hwadd ifcfg-eth1 DEVICE=eth1 SLAVE=yes MASTER=bond0 [root@kvm01a network-scripts]# cat ifcfg-bond0 | sed 's/[1-9]/x/g' DEVICE=bond0 ONBOOT=yes BOOTPROTO=static IPADDR=x0.xxx.xx.xx NETMASK=xxx.xxx.xxx.0 DNSx=xx0.xxx.xxx.xxx DNSx=x0.xxx.xx.xx DNSx=x0.xxx.xx.x0 [root@kvm01a network-scripts]# cat ifcfg-br375 DEVICE=br375 BOOTPROTO=none TYPE=Bridge ONBOOT=yes [root@kvm01a network-scripts]# cat ifcfg-bond0.375 DEVICE=bond0.375 BOOTPROTO=none ONBOOT=yes VLAN=yes BRIDGE=br375 [root@kvm01a network-scripts]# cat /etc/modprobe.d/local.conf alias bond0 bonding options bonding mode=4 miimon=100 [root@kvm01a network-scripts]# grep Mode /proc/net/bonding/bond0 Bonding Mode: IEEE 802.3ad Dynamic link aggregation [root@kvm01a network-scripts]# egrep '^V|375' /proc/net/vlan/config VLAN Dev name | VLAN ID bond0.375 | 375 | bond0 Repeat ad nauseam for the other VLANs you want to put VMs on (assuming your switch is trunking them to your hypervisor). See also http://backdrift.org/howtonetworkbonding via http://irclog.perlgeek.de/crimsonfu/2012-08-15#i_5900501 Phil _______________________________________________ CentOS-virt mailing list CentOS-virt@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos-virt
