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Catalyst 4500 Series, Catalyst 2948G, Catalyst 2948G-GE-TX, and Catalyst 2980G Switches Software Configuration Guide—Release 8.2GLX
78-15908-01
Chapter 39 Configuring NTP
Configuring NTP on 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)
Configuring NTP in Client Mode
Configure the switch in NTP client mode if you want the client switch to regularly send time-of day
requests to an NTP server. You can configure up to ten server addresses per client.
To configure the switch in NTP client mode, perform this task in privileged mode:
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]
Task Command
Step 1
Specify the IP address of the NTP server. set ntp server ip_addr
Step 2
Enable NTP client mode. set ntp client enable
Step 3
Verify the NTP configuration. show ntp [noalias]
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