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5-64
Cisco SCE 2000 and SCE 1000 Software Configuration Guide
OL-7827-12
Chapter 5 Configuring the Management Interface and Security
Configure SNTP
How to Display the Current Daylight Saving Time Configuration
Step 1
From the SCE# prompt, type
show timezone
and press Enter.
Displays the current time zone and daylight saving time configuration.
Configure SNTP
•
How to Enable the SNTP Multicast Client, page 5-64
•
How to Disable the SNTP Multicast Client, page 5-65
•
How to Enable the SNTP Unicast Client, page 5-65
•
How to Disable the SNTP Unicast Client, page 5-65
•
How to Define the SNTP Unicast Update Interval, page 5-66
•
How to Display SNTP Information, page 5-66
The Simple Network Timing Protocol (SNTP) is a simple solution to the problem of synchronizing the
clocks in the various elements of the network. SNTP provides access to a time source via the network.
The system clock and calendar are then set in accordance with this external source.
There are two options for the SNTP client. These functions are independent, and the system employ
either one or both.
•
Multicast SNTP client — Listens to SNTP broadcasts and updates the system clock accordingly.
•
Unicast SNTP client — Sends a periodic request to a configured SNTP server, and updates the
system clock according to the server response.
Note
It is recommended that an IP access control list be configured to prevent access from unauthorized SNTP
or NTP multicast servers (see
Configuring Access Control Lists (ACLs), page 5-26
).
The following commands are relevant to SNTP configuration:
•
[no] sntp broadcast client
•
[no] sntp server address
•
no sntp server all
•
sntp update-interval
•
show sntp
How to Enable the SNTP Multicast Client
Step 1
From the SCE(config)# prompt, type
sntp broadcast client
and press
Enter
.
Enables the SNTP multicast client. It will accept time updates from any broadcast server.