ESXi sends an heartbeat to vCenter Server over UDP port 902 to signal that host is accessible over management network. This is default for heartbeat communication, although this can be changed at vCenter and ESXi. When ESXi host intermittently disconnects from vCenter, then one of possible cause is port misconfiguration either at ESXi or vCenter. So in this post i am going to share how can you check, heartbeat port configuration?
Check Heartbeat Port Configuration at vCenter Server
In Appliance based vCenter you can check this, not only from vSphere Web Client. This can be checked from vpxd.cfg file and the location of this file is /etc/vmware-vpx/vpxd.cfg, by connecting with vCenter Server Shell.
Check Heartbeat Port Configuration at ESXi Host
Open /etc/vmware/vpxa/vpxa.cfg file, and review the port configuration
So this is how you can port configuration details at both ESXi and vCenter.
Check Heartbeat Port Configuration at vCenter Server
Check Heartbeat Port Configuration at ESXi Host
Open /etc/vmware/vpxa/vpxa.cfg file, and review the port configuration
So this is how you can port configuration details at both ESXi and vCenter.
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