ESX3 CRITICAL - Error connecting to server

[abasha]

Product Support,

We are unable to monitor the vmware hosts through nagios, We are getting the error messsages attached in the screenshot. Could you kindly advice how do we monitor the VMWare ESXi hosts

CPU Usage for VMHost Critical 4d 6h 53m 21s 5/5 26/05/2014 14:42:29 ESX3 CRITICAL - Error connecting to server
Datastore usage for VMHost Critical 4d 6h 52m 47s 5/5 26/05/2014 14:48:12 ESX3 CRITICAL - Error connecting to server
Input / Output for VMHost Critical 4d 6h 52m 14s 5/5 26/05/2014 14:48:59 ESX3 CRITICAL - Error connecting to server
Memory for VMHost Critical 4d 6h 51m 41s 5/5 26/05/2014 14:46:26 ESX3 CRITICAL - Error connecting to server
Networking for VMHost Critical 4d 6h 56m 7s 5/5 26/05/2014 14:49:44 ESX3 CRITICAL - Error connecting to server
Services for VMHost Critical 4d 6h 55m 33s 5/5 26/05/2014 14:46:26 ESX3 CRITICAL - Error connecting to server
VM Status for VMHost Critical 4d 6h 54m 59s 5/5 26/05/2014 14:46:26 ESX3 CRITICAL - Error connecting to server

Best Regards,

[abrist]

Have you followed the monitoring vmware doc?
http://assets.nagios.com/downloads/nagi ... ios_XI.pdf