How to Configure bonding mode to active-backup for management network in vCenter Appliance 6.5

[aloksinghericss]

Hi,

my current network configuration in vCenter 6.5 as below

[ /etc/systemd/network ]# cat 10-eth.network

[Match]

Name=eth*

[Network]

Bond=bond0  

ActiveSlave=false

PrimarySlave=true

[DHCP]

UseDNS=false

-------------------------------------------------------------------------------------------------------

[ /etc/systemd/network ]# cat 20-bond.netdev

[NetDev]

Name=bond0

Kind=bond

[Bond]

Mode=balance-rr

MIIMonitorSec=10s

-------------------------------------------------------------------------------------------------------

[ /etc/systemd/network ]# cat 30-bond-static.network

[Match]

Name=bond0

[Network]

Address=192.168.XX.XXX/24

Gateway=192.168.XX.X

DNS=192.168.XX.XXX

DHCP=no

[Route]

Gateway=192.168.XX.X

Destination=192.168.XX.X/24

[DHCP]

UseDNS=false

In file 20-bond.netdev, You can see Mode=balance-rr So, currently bond interface is in Load Balancing with round-robin

[ /etc/systemd/network ]# cat /proc/net/bonding/bond0

Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)

Bonding Mode: load balancing (round-robin)

MII Status: up

MII Polling Interval (ms): 0

Up Delay (ms): 0

Down Delay (ms): 0

I want to make it something like below ,  I changed Mode=active-backup in 20-bond.netdev  but it seems not taking affect.

Bonding Mode: fault-tolerance (active-backup)

Primary Slave: eth0 (primary_reselect always)

Currently Active Slave: eth0

MII Status: up

MII Polling Interval (ms): 0

Up Delay (ms): 0

Down Delay (ms): 0

[daphnissov]

What is it you're trying to achieve here, exactly? This is a virtual appliance. Why do you need to bond any interfaces? I'm not even sure that's supported to begin with.

[aloksinghericss · Accepted solution]

Hi,

We can use bonding here as VCenter 6.5 uses Photon OS platform.  So if we want to create bonding in vCenter we can use below link

https://blog.jreypo.io/cloud-native/devops/vmware/sysadmin/linux/network-configuration-in-photon-os/

for my problem I just modified 20-bond.netdev as below and rebooted VM after change. it worked for me.

[NetDev]

Name=bond0

Kind=bond

[Bond]

Mode=active-backup

PrimaryReselectPolicy=always

MIIMonitorSec=10s

[daphnissov]

Do you know what you're doing is very likely totally unsupported? Still trying to understand why you're trying to configure bonding on a VM which performs a management function.