JANET NTP Service
The JANET Network Time Service delivers to JANET customers a stable time reference to organisations using the Network Time Protocol (NTP) specified in RFC 1305.
The following information is available :
- Technical Information
- Joining the Service: e-mail template
For any queries, contact JANET Service Desk at service@ja.net
About the service
JANET provides four stratum-1 servers distributed across the network which peer with other time sources outside JANET. These servers are located at:
Server location |
DNS names |
London |
ntp0.ja.net |
Bracknell |
ntp1.ja.net |
Manchester |
ntp2.ja.net |
Edinburgh |
ntp3.ja.net |
|
ntp4.ja.net |
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.