vinayaksh
Contributor
Contributor

How vcenter communicate to esxi hosts

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Hi Team,

Just want to know how vcenter communicate to esxi hosts?

a)Name of the agent responsible for communication between vcenter and esxi host

Thanks

Vinayak

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KSethi
Enthusiast
Enthusiast

Hello vinayakshvinayaksh ,


Vcenter talks to esxi host with the help of  VPXD service running inside the vcenter server  and also the vpxa service on esxi host which is acting as an intermediary service  responsible for taking the request from vpxd and passing the request to  hostd which is running on esxi host ultimately its hostd which does the tasks (like powering on a VM, migrating a VM and So on). vinayakshHow vcenter communicate to esxi hosts

Kindly mark it as useful or correct answer if this answers your query.

Rgds

Kanishk

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rcporto
Leadership
Leadership

vCenter Server communicate with ESXi hosts through the vCenter Server agent on each managed host, the software that collects, communicates, and executes the actions received from vCenter Server. The vCenter Server agent is installed the first time any host is added to the vCenter Server inventory.

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Richardson Porto
Senior Infrastructure Specialist
LinkedIn: http://linkedin.com/in/richardsonporto
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greco827
Expert
Expert

hostd and vpxa are the management agents on the ESXi host.  Port 902 is the primary communication link between vCenter and each ESXi host.  Other ports required for vCenter to ESXi for functionality purposes are:

        902 (server-to-server migration and provisioning traffic)

2050–2250 (for HA traffic)

8000 (for vMotion)

8042–8045 (for HA traffic)


Generally, I prefer to have my hosts and vCenter (along with all of my infrastructure components) on the same secure VLAN.  This makes the whole firewall/port requirement aspect much simpler.

If you find this or any other answer useful please mark the answer as correct or helpful https://communities.vmware.com/people/greco827/blog
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KSethi
Enthusiast
Enthusiast

Hello vinayakshvinayaksh ,


Vcenter talks to esxi host with the help of  VPXD service running inside the vcenter server  and also the vpxa service on esxi host which is acting as an intermediary service  responsible for taking the request from vpxd and passing the request to  hostd which is running on esxi host ultimately its hostd which does the tasks (like powering on a VM, migrating a VM and So on). vinayakshHow vcenter communicate to esxi hosts

Kindly mark it as useful or correct answer if this answers your query.

Rgds

Kanishk

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vinayaksh
Contributor
Contributor

Hi Kanishk,

Thanks for your reply it was very informative

Thanks

Vinayak

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