Model: MTS200 (1U)
Doc. Ref. no. : m08/om/201
Issue no. : 03
User’s Manual
Page 120 of 195
Page 120 of 195
application or webserver or front panel serial console port. Stratum can be configured from 0 to 15 value
range. Local clock cannot be disable in GPS Unlock conditions because in unlock conditions, unit is
running on its internal clock.
Note
:
1.
The stratum of local clock should be configured as required stratum
– 1 because ntp driver always
transmit stratum as conf 1 value.
2.
Refer section 11.3.4 and 11.3.5, for detail understanding of stratum value implementation on ntp
clients in network.
Refer section 11.3.3 for method to configure ntp settings through SSH, Telnet, serial console mode and
refer 11.3.3 for method to configure ntp settings through webserver mode.
11.3.3.3 NTP Broadcast / Multicast
MTS200 is capable to broadcast NTP packets at configured & defined interval in seconds. This device
can send regular ntp packets over particular defined broadcast address or set NTP multicast address
( IPv4 - 224.0.1.1) which is fixed v4 address and (IPv6
– ff08::101,ff05::101,ff02:101) assigned by IANA
for ntp multicast.
Operator have to set the broadcast address or above specified multicast address in Broadcast Address
field as “BCAST. Address” in console configuration utility or “Broadcast Address” in webserver mode.
Also , user have to select the broadcast/multicast interval in seconds defined as “BCAST.
Interval(seconds)” in console based configuration utility or “Broadcast Interval” in webserver NTP page.
If NTP broadcast or multicast mode is not required, users can use this mode by setting parameter
“BCAST/ Srvs (0/1)” in console based configuration utility NTP menu to 0 or selecting “Disable Broadcast
Address” option in webserver NTP page.
It is always recommended to use NTP Broadcast or NTP multicast only with using any of NTP
Authentication technique (symmetric key based / Autokey) in order to avoid accidental or malicious
disruption in this mode.
