VM Replication status is “Not Active” after upgrade to vSphere 5.5/VR 5.5

Weird issue I encountered after I deployed vSphere Replication appliance on my upgraded vSphere 5.5 lab. I was able to configure vSphere replication for a VM but for strange reasons, the VM replication shows as Not Active. This worked fine when I was still using vSphere 5.1/VR 5.1. The hostd.log file shows the following error:

Screen Shot 2014-04-29 at 1.30.21 PM

The configuration for vSphere Replication all looks good, all are green so I can’t figure out what’s wrong here.

Luckily, I found a  VM community post which is similar to my issue found here

I remember that in 5.1, I configured a vSphere Replication vmkernel port tick box in web client. This vmkernel port tick box is now removed in vSphere 5.5. As far as I know, that tick box is useless in vSphere 5.1 coz even though its checked, VR traffic will always default to the management vmkernel. See Sunny Dua’s article on properly configuring a different management network for vSphere replication

Going back to my issue, I followed the suggestion to remove the lines similar to the following in esx.conf of the ESXi host:

/net/vmkernelnic/child[0001]/tags/4 = “true”

The number [0001] may change depending on the environment. On mine its [0002]. After making the change and rebooting the ESXi hosts, vSphere Replication started working fine again.

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