Planned infrastructure refresh - from 12 March 2020
Over the coming months, Jisc’s NTP team will be undertaking a programme of infrastructure renewal. This will also see the introduction of GNSS (Global Navigation Satellite System) allowing us to access not just GPS, but also GLONASS, Galileo and BeiDou systems.
In addition, the underlying NTP infrastructure will be refreshed to meet the challenges of a modern network.
In order to complete this programme of work, we will need to migrate our current infrastructure onto the new platforms with a small planned outage to each of the five server NTP appliances.
Our NTP 1 appliance was the first to be refreshed and this was successfully completed on 12 March.
Coronavirus (COVID-19) update, 31 March 2020: due to the current coronavirus situation, all upgrade work to the NTP appliances has been temporarily postponed. For further details, see our community page.
Dates for the remaining upgrades will also be regularly updated via our community page. Please note that the NTP service will remain up at all times.
Whilst this infrastructure work is taking place, we strongly recommend that you configure more than 1 NTP server as a failover to ensure continuity of service (see support and advice below).
If you have any questions regarding this service refresh or require any technical assistance, please do not hesitate to email us and we will get back to you.
Support and advice
It is recommended that an organisation should choose between two to four local systems to be stratum-2 servers. The local server systems do not have to be reserved systems - they can do other work. However, they should be physically distributed around the organisation, so that they are not all on the same power supply or the same segment of a LAN.
Each local server should be configured as a client of a Janet stratum-1 server, and as a peer to the other stratum-2s at the organisation.