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3Com Switch 7750 Series
Command Reference Guide – NTP Chapter 1 NTP Configuration Commands
1-6
Use the undo ntp-service authentication-keyid command to cancel the NTP
authentication key.
By default, no authentication key is configured.
Currently the system supports MD5 authentication only.
Example
# Set MD5 authentication key 10 as hello.
<3Com> system-view
System View: return to User View with Ctrl+Z.
[3Com] ntp-service authentication-keyid 10 authentication-mode md5 hello
1.1.7 ntp-service broadcast-client
Syntax
ntp-service broadcast-client
undo ntp-service broadcast-client
View
VLAN interface view
Parameter
None
Description
Use the ntp-service broadcast-client command to configure NTP broadcast client
mode.
Use the undo ntp-service broadcast-client command to disable NTP broadcast
client mode.
By default, the NTP broadcast client mode is disabled.
Designate an interface on the local device to receive NTP broadcast packets. The
local device operates in broadcast client mode. The local device listens to the
broadcast packets from the server. When it receives the first broadcast packet, it starts
a brief client/server mode to exchange messages with a remote server for estimating
the network delay. Thereafter, the local device enters broadcast client mode and
continues listening to the broadcast packets and synchronizes the local clock based
on the arrived broadcast packets.
Example
# Configure to receive NTP broadcast packets through Vlan-interface 1.
<3Com> system-view