After setting up event streaming to syslog server from the following guide the syslog server doesn't receive any of the event data.
vCenter Server 7
There is a line in the file /etc/rsyslog.conf which was commented out.
Find the line that states
#$IncludeConfig /etc/vmware-syslog/syslog.conf
Remove the starting # to uncomment the line. Restart vCenter services.