NIC Bonding on XenServer

Changing XenServers Default Bond Mode

XenServer defaults to a bond mode of "balance-slb"

Possible Bond Modes are:

balance-rr
active-backup
balance-xor
broadcast
802.3ad
balance-tlb
balance-alb
balance-slb

From a console go to /opt/xensource/libexec

cd /opt/xensource/libexec

Search for "balance-slb"

grep -i balance-slb ./*

Edit any files that grep returned as a match.

sed -i 's/balance-slb/802.3ad/g' InterfaceReconfigureBridge.py InterfaceReconfigureVswitch.py

Now any new Bonds you create in XenCenter will have your newly selected Bond Mode.

1) Get the host UUID

xe host-list

2) Get the PIF's UUID

xe pif-list host-uuid=<HOST_UUID>

3) Change the mode:

Possible Bond Modes:

balance-rr
active-backup
balance-xor
broadcast
802.3ad
balance-tlb
balance-alb
balance-slb

xe pif-param-set uuid=<PIF_UUID> other-config:bond-mode=<802.3ad>

cat /proc/net/bonding/bond0