Cisco WS-C6506 - Enabling NTP in Broadcast-Client Mode

34-3
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
Chapter 34 Configuring NTP
Configuring NTP on the Switch
• Clearing the Time Zone, page 34-7
• Clearing NTP Servers, page 34-8
• Disabling NTP, page 34-8
Enabling NTP in Broadcast-Client Mode
Configure the switch in NTP broadcast-client mode if an NTP broadcast server, such as a router,
regularly broadcasts time-of-day information on the network. To compensate for any server-to-client
packet latency, you can specify an NTP broadcast delay (a time adjustment factor for the receiving of
broadcast packets by the switch).
To enable NTP broadcast-client mode on the switch, perform this task in privileged mode:
This example shows how to enable NTP broadcast-client mode on the switch, set a broadcast delay of
4000 microseconds, and verify the configuration:
Console> (enable) set ntp broadcastclient enable
NTP Broadcast Client mode enabled
Console> (enable) set ntp broadcastdelay 4000
NTP Broadcast delay set to 4000 microseconds
Console> (enable) show ntp
Current time: Tue Jun 23 1998, 20:25:43
Timezone: '', offset from UTC is 0 hours
Summertime: '', disabled
Last NTP update:
Broadcast client mode: enabled
Broadcast delay: 4000 microseconds
Client mode: disabled
NTP-Server
----------------------------------------
Console> (enable)
Task Command
Step 1
Enable NTP broadcast-client mode. set ntp broadcastclient enable
Step 2
(Optional) Set the estimated NTP broadcast
packet delay.
set ntp broadcast delay microseconds
Step 3
Verify the NTP configuration. show ntp [noalias]