Re: Time and Timing Servers

[Mike Hammett <nanog () ics-il net>]

Sure. They have a BITS service. I'm just checking out all of my options. It'd be nice to have my own stuff, but that 
may not be feasible (or possible once CDMA goes away). 


Are any of you coloed with Frontier? Have you gotten them to let you install a GPS antenna? 





----- 
Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

The Brothers WISP 

----- Original Message -----

From: keith () contoocook net 
To: "Karsten Elfenbein" <karsten.elfenbein () gmail com>, "Mike Hammett" <nanog () ics-il net> 
Cc: "NANOG" <nanog () nanog org> 
Sent: Thursday, July 11, 2019 3:49:35 PM 
Subject: Re: Time and Timing Servers 

I know that many places hosting telecom gear provide "BITS Clock" this is a DS1 with timing. 
Ask about that, it's an alternative to providing your own. 


----- Original Message ----- 
From: "Karsten Elfenbein" <karsten.elfenbein () gmail com> 
To: "Mike Hammett" <nanog () ics-il net> 
Sent: Thursday, July 11 2019 03:22:01 PM 
Subject: Re: Time and Timing Servers 



I think you are referencing their chip scale atomic clocks. Which are very frequency stable. But still need phase 
alignment. (Mobile UPS anyone?) 


Maybe some peers can provide transparent or boundry clock support. Or someone close by in the DC can add an antenna 
splitter. 


Karsten 


Mike Hammett < nanog () ics-il net > s chrieb am Do., 11. Juli 2019, 16:31: 




There were a lot of NTP threads several weeks ago, but I didn't get an answer to my question amongst all of the other 
chatter. 


I'm looking for a device that can receive GPS inside a building without the assistance of an external antenna (Frontier 
says they no longer allow external antenna), will provide traditional NTP services, and will provide a timing signal 
that my Metaswitch can work with. 

I know that MicroSemi via Symmetricom makes these kinds of devices, but I'm hoping to look at multiple manufacturers 
and compare. 




Thanks. 




----- 
Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

The Brothers WISP