Hey Ben,
This has less to do with UCCX and more to do with the lack of time precision in Windows SNTP / NTP compared to the needs of UCOS. Yes, I know, die hard Redmond boys and girls will say that ever since Win2003 that isn't the case but sorry, it is. (read: https://technet.microsoft.com/en-us/library/cc773013%28v=ws.10%29.aspx). In fact, on page 84 (PDF page) of the latest SRND (http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab11/collab11.pdf) Windows NTP is a flat nono for Cisco UC period. IOS routers are great but here is how I like to roll (excuse the crudeness of the drawing, put it together this morning before coffee). I typically use Linux servers for NTP because they are so darn useful for other utilitarian things ..... can't count how many times just having a Linux box on the network somewhere helped me out. [cid:707cfe52-13c4-44bb-b4f2-d2f3d3fcf2ef] = Ryan = ________________________________ From: cisco-voip <[email protected]> on behalf of Ben Amick <[email protected]> Sent: Monday, May 8, 2017 10:12 AM To: [email protected] Subject: [cisco-voip] CCX and NTP What do you guys use for NTP on your CCX hosts? I’ve been informed by TAC that “CCX does not support Windows based NTP” so I was thinking about just pointing NTP towards my CCM hosts – is that a valid scenario? I figure that since CCM is pretty much authoritative on everything for CCX as it is it wouldn’t be a problem? Ben Amick Telecom Analyst Confidentiality Note: This message is intended for use only by the individual or entity to which it is addressed and may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy. Thank you
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