Time Sync from AC800M Controller to Esxi NTP Client

Is it possible to Sync a AC800M Controller using its NTP Server function to sync the Esxi NTP Client ?

Customer Sync's the AC800M Controller to the Virtual Connect Server using standard setup. However he would like to also Sync the Esxi Server to the same Controller. The Virtualization Manual explains how to setup the NTP Client and point to a NTP Server or a Windows NTP server but it does say they must be on the same Network as the Esxi Management Network. This allows access from Esxi Management Network to Controller.

This is where we are stuck. Customers Management Network is not on the Same IP Class or network as the Control Network for Obvious reasons. Is there any way to still point to the AC800M Controllers NTP Server ?

Can you bridge or Route the Management Network safely to the Controller ?

Thanks


Add New Comment


JurakM   

asked 6 months ago
Closed



Answers

0

Create another virtual Network just for TimeSync purpose in connectivity server and link Host to it.
Controller -> Connectivity Server on CNCP 
Connectivity server -> ESXi Host on SNTP over new Virtual Network.

elemravi   

answered 6 months ago


 


By JurakM on 4/26/2017 | Like (0) | Report

I did look at that but is it not better to get the Time from a Source when the Esxi Server Boots up the first time ?. The Connect VM would not be running at this time. When the Connect VM boots it will first get it's time from the Esxi Server then get its time from the Controller this could be a Step Change.


By elemravi on 4/26/2017 | Like (0) | Report

ESXi hosts are pretty good in holding time accurately so it is not going to be a big step change.


Add New Comment


0

You must open up a route between the ESXi management network and the controller, UDP port 123.

The AC 800M controller can do default gateway but does also support manual entry of a static route, refer to IPConfig tool / OnLine Help. Let ICMP Echo (ping) be enabled while setting up the route. When ping work from ESXi, SNTP (UDP port 123) should work too (then turn off ping in firewall to tighten up security again).

I know plenty of sites where the ESXi host management interfaces are located on the client server network, but can understand if this customer does not like it.

My experience of ESXi NTP Client is limited. I've seen many projects having issues with getting ESXi host to "hook on" to the NTP source. It seems like they need to be within a second or less before it will "hook on". I recommend enabling & using SSH into the ESXi host and use low level NTP tracing command (forgot exact name) to verify the synchronization to be operational (time difference within a handful of microseconds)

Stefan Stromqvist   

answered 6 months ago


 


Add New Comment



Get weekly AKS updates


Partner Exclusive Webinars

 

> – Login to the partner portal to register



Points Redemption Program - Redeem your points for ABB training, Bluetooth speakers and mugs. Terms and conditions >


Earn points when you refer a friend
AKS Referral Program is "Live" - Learn more



AKS Experts


avatar
Ask Harsha.D   

Rank: 6

Tech.Support,software and commisioning engineer with Proficient knowledge in 800xA and its products, RNRP,Networking in general.


avatar
Ask kstoilov   

Rank: 16

Control System Engineer: 800xA, Compact 800, AC500, AC31-50, Advant Master, Simatic, AC&DC Drives 11 years worked for ABB - Control Systems


avatar
Ask Govindaraj   

Rank: 10

Working in ABB India Operation Center. Have Project engineering and commissioning experience in ABB 800xA, Freelance, AC500.


avatar
Ask MMM   

Rank: 5

ABB PA CT Technical Support


avatar
Ask Stefan Stromqvist   

Rank: 1

I joined ABB in the year of 1994 and has since 1999 been working as a Service & Support Engineer at BU Control Technologies in Västerås, Sweden. My areas of expertise are: 800xA Base, 800xA for Advant Master, Information Management, operating systems, RNRP and Ethernet comms/networking in general.


avatar
Ask Dieter Henkel   

Rank: 23


avatar
Ask Flavio Mussolin   

Rank: 4

ABB AVP, Senior Electronic and Automation Engineer with over 30 years of experience in the field of process automation automotive, pharmaceutical, hollow glass, steel and rolling.


avatar
Ask nikismith   

Rank: 261

I have been a part of the Recording & Control Factory team for 17 years in total, having spent a number of years as a repairs technician withi the manufacturing department, but being in my current role for 9 years now.


avatar
Ask Sumit Gargav   

Rank: 2

I have worked with Freelance in majority, with 800xA FD and Melody system partly. Also had opportunity to work with Protocols - HART,Profibus,FF & Modbus.


avatar
Ask Rob Lyon   

Rank: 3

info@lymac.co.nz I'm an independent DCS software and commissioning engineer with extensive experience in 800xA and other ABB products. I've worked in almost every corner of the world and still haven't seen it all.