Setting up redundancy
Posted by Uzair A., Last modified by Uzair A. on 29 July 2019 11:49
This article provides useful information for our customers who wish to setup their devices in redundancy mode. Please note that the information in this article applies to the NTS-6001 and 6002 units only, running Firmware 11 or higher.
If your time server is running a software version older than version 11, you will need to upgrade your device to the latest firmware. The latest firmware brings with it the latest in security, stability and bug fixes. Upgrade instructions can be found here:
Below are a few redundancy features that our NTP servers offer:
(C) Using Two Time Sources with your NTP server – This method requires two antennas. Here at Galleon Systems, we offer dual time-source NTP servers. Specifically, the NTP server will have both a GPS and Radio antenna connected to it. The NTP server will always favour GPS as a time-source as it is more reliable and accurate than the radio time-source. However, if for whatever reason, the server was to lose connection with its GPS antenna, the unit should switch to the radio time source. MSF is the radio signal for the UK (the signal originates from Cumbria), DCF for Frankfurt, Germany and WWVB for North America
For changes to take effect, you will need to restart the unit. To confirm if the changes have been taken effect, log into the web interface and view the 'Dashboard'. You should see 'Bonded Network' and all the relevant network information. This can be seen in the print screen below.
(B) How to configure Peering
To peer your NTP server to one or more NTP servers, you need to ensure that the NTP servers can reach each other. If you are peering to an Internet time server, ensure your NTP server has Internet access. You can verify reachability by using the Ping tool which is under the Network Tools tab. If your NTP server is going through a firewall, ensure port 123 over UDP is allowed on your Firewall.
Verifying if your NTP server is being assisted
You can confirm if the peering was successful by logging into the web interface and clicking 'NTP' and 'NTP Status'. If there is a '*' next to the IP, it means that this is the current time source. The '+' refers to an NTP Server that is assisting you. If there is a ‘+’ next to the IP address or hostname of the NTP server that you configured peering with, it means you have peered the NTP servers together successfully. You can refer to the screenshot below for more information.
An 'X' is used to indicate a discarded source.
The source could be discarded due to a few issues. There could be network issues that might prevent the time server from reaching the peered source. Or, the time server may determine that the source is not accurate, using NTP algorithms.
(C) Using Two Time Sources with your NTP server
Contact Galleon Systems if you wish to purchase another antenna for your NTP server. Please note that we can only guarantee compatibility with a Galleon NTP server. For more information, fill in our contact form: http://www.galsys.co.uk/contact/