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Configuring Ntp; Default Ntp Configuration - Cisco Catalyst 9500 Manual

System management configuration guide, cisco ios xe amsterdam 17.2.x
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Configuring NTP

Step 5
Step 6
Step 7
Configuring NTP
The device does not have a hardware-supported clock and cannot function as an NTP primary clock to which
peers synchronize themselves when an external NTP source is not available. The device also has no hardware
support for a calendar. As a result, the ntp update-calendar and the ntp master commands in global
configuration mode are not available.
These following sections provide configuration information on NTP:

Default NTP Configuration

shows the default NTP configuration.
Table 3: Default NTP Configuration
Feature
NTP authentication
NTP peer or server associations
NTP broadcast service
NTP access restrictions
NTP packet source IP address
NTP is enabled on all interfaces by default. All interfaces receive NTP packets.
System Management Configuration Guide, Cisco IOS XE Amsterdam 17.2.x (Catalyst 9500 Switches)
14
Command or Action
end
Example:
Device(config)# end
show running-config
Example:
Device# show running-config
copy running-config startup-config
Example:
Device# copy running-config
startup-config
Purpose
Returns to privileged EXEC mode.
Verifies your entries.
(Optional) Saves your entries in the
configuration file.
Default Setting
Disabled. No authentication key is specified.
None configured.
Disabled; no interface sends or receives NTP
broadcast packets.
No access control is specified.
The source address is set by the outgoing interface.
Administering the Device

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