Cisco Cisco Digital Media Player 4300G Guida All'Installazione

IP-enabled devices including DMPs can use network time protocol (NTP) to synchronize themselves 
with radio and atomic clocks located on the Internet. Thus, the accuracy of their local time-keeping is 
ensured. NTP can synchronize distributed clocks within milliseconds over long time periods. You must 
configure NTP settings on any DMP through which you will provide:

IPTV services with Cisco Cast.

Proof-of-play services with Cisco Digital Signs.

Any other service that is dependent upon accurate Start and Stop times.

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Click NTP in the Settings list.

Choose On from the Enable NTP Service list.

Use the fields marked Hostname 1, Hostname 2, and Hostname 3 to specify which NTP servers your 
DMP should use.

Hostname 1 — Enter the DNS-resolvable name of the network time server to use by default. This 
is your primary time server. Your DMP will not use any other unless this one is not available.

Hostname 2 — Enter the DNS-resolvable name of a network time server to use whenever the primary 
time server is not available.

Hostname 3 — Enter the DNS-resolvable name of a network time server to use whenever the 
secondary time server is not available.

Choose from the Time Zone list the time zone that is correct and local for your DMP at its location.

Enter in the Refresh Interval field the maximum number of milliseconds that are permitted to elapse 
before your DMP retrieves a fresh time stamp from its NTP server. The factory-default maximum 
is 17 ms.