GlobalTime NTP Products
15
REMOTE:192.168.1.6
，
IP address of the backup machine
WORKADDR:10.32.33.21
，
the working IP, that is, the shared IP of hot standby
WORKMASK:255.255.255.0
，
the mask of the work address
WORKGATEWAY:10.32.33.21
，
the gateway of the work address
STRATUM: 7, For heartbeat detection level, the smaller, the higher. In the case that both of
the devices have become hosts, the low-level one will be initiative to be the backup
equipment based on the negotiation.
The hot standby equipment will perform the following functions:
1. The master-slave relationship of the two servers is based on the configuration files and
the boot sequence (see under for further information), that is, if machine A is started first,
then A acts as the host while machine B is the backup one; if machine B is to started frist,
then B acts as the host while machine A is the backup equipment; if both of the machines
are started in the same time, then the Master (can be configured) machine is the host. After
restarting the host, it will remain to be the host.
2. In the case that both the host and the backup machine have been started, if the host is cut
off the power supply unexpectedly, the backup machine will automatically switches to the
host. The switching period is about 5s.
3. If the host is disconnected from the network unexpectedly and the
backup machine is
under the normal operation of the network, the backup machine will also automatically
switches to the host.
4. GPS receiver of the host can not receive the satellite signals normally, if the network and
GPS receiver with the backup machine are both in normal operation, then the backup
machine automatically switches to the host. To prevent the devices from frequent switching
when the GPS is not working well, only when it can not receive the satellite signals for 2
minutes can the two devices switch over.
5. If the switch has broken down and machine A and B are on the ends of the fault point,
they can provide services for both the two networks. After the
troubleshooting, the machine
of higher priority will be (can be set) the host while another one will be the backup
equipment.
