Polling For Broadcast Time Information; Defining Sntp Global Settings - Alcatel OS-LS-6224 User Manual

Polling For Broadcast Time Information

Broadcast information is used when the server IP address is unknown. When a
broadcast message is sent from an SNTP server, the SNTP client listens for the
response. The SNTP client neither sends time information requests nor receives
responses from the Broadcast server.
Message Digest 5 (MD5) Authentication safeguards device synchronization paths to
SNTP servers. MD5 is an algorithm that produces a 128-bit hash. MD5 is a variation
of MD4, and increases MD4 security. MD5 verifies the integrity of the
communication, authenticates the origin of the communication.

Defining SNTP Global Settings

The SNTP Configuration Page provides information for defining SNTP parameters
globally.
Command Attributes
• Poll Interval — Defines the interval (in seconds) at which the SNTP server is
polled for Unicast information. The Poll Interval default is 1024 seconds.
• Enable Receive Broadcast Servers Updates — Defines whether or not the
device monitors the SNTP servers for the interface's Broadcast server time
information. The possible values are:
• Checked — Enables the device to receive Broadcast server updates.
• Unchecked — Disables the device from receiving Broadcast server updates.
• Enable Receive Anycast Servers Updates — Defines whether or not the device
polls the SNTP server for Anycast server time information. If both the Enable
Receive Anycast Servers Update and the Enable Receive Broadcast Servers
Update fields are enabled, the system time is set according the Anycast server time
information. The possible values are:
• Checked — Enables the device to receive Anycast server updates.
• Unchecked — Disables the device from receiving Anycast server updates.
• Enable Receive Unicast Servers Updates — Defines whether or not the device
polls the SNTP server for Unicast server time information. If the Enable Receive
Broadcast Servers Updates, Enable Receive Anycast Servers Updates, and
Enable Receive Unicast Servers Updates fields are all enabled, the system time is
set according the Unicast server time information. The possible values are:
• Checked — Enables the device to receive Unicast server updates.
• Unchecked — Disables the device from receiving Unicast server updates.
• Enable Poll Unicast Servers — Defines whether or not the device sends SNTP
Unicast forwarding information to the SNTP server. The possible values are:
• Checked — Enables the device to receive Poll Unicast server updates.
• Unchecked — Disables the device from receiving Poll Unicast server updates.
Web – Select System, System Management, SNTP, Configuration. Define the fields
and click Apply.
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Configuring SNTP
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