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NTP 337
Perform the following configurations in VLAN interface view.
NTP version number number ranges from 1 to 3 and defaults to 3; the
authentication key ID keyid ranges from 0 to 4294967295. This command can
only be configured on the interface where the NTP broadcast packets will be
transmitted.
Configuring NTP Broadcast Client Mode Designate an interface on the local
switch to receive NTP broadcast messages and operate in broadcast client mode.
The local switch listens to the broadcast from the server. When it receives the first
broadcast packets, it starts a brief client/server mode to switch messages with a
remote server for estimating the network delay. Thereafter, the local switch enters
broadcast client mode and continues listening to the broadcast, and synchronizes
the local clock according to the arrived broadcast message.
Perform the following configurations in VLAN interface view.
This command can only be configured on the interface where the NTP broadcast
packets are received.
Configuring NTP Multicast Server Mode Designate an interface on the local
switch to transmit NTP multicast packets. In this case, the local equipment
operates in multicast mode and serves as a multicast server to multicast messages
to its clients regularly.
Perform the following configurations in VLAN interface view.
NTP version number number ranges from 1 to 3 and defaults to 3; the
authentication key ID keyid ranges from 0 to 4294967295; ttl-number of the
multicast packets ranges from 1 to 255; And the multicast IP address defaults to
224.0.1.1.
Table 66 Configuring NTP Broadcast Server Mode
Operation Command
Configure NTP broadcast server mode ntp-service broadcast-server [
authentication-keyid keyid ] [ version
number ]
Cancel NTP broadcast server mode undo ntp-service broadcast-server
Table 67 Configuring NTP Broadcast Client Mode
Operation Command
Configure NTP broadcast client mode ntp-service broadcast-client
Disable NTP broadcast client mode undo ntp-service broadcast-client
Table 68 Configuring NTP Multicast Server Mode
Operation Command
Configure NTP multicast server mode ntp-service multicast-server [ ip-address ] [
authentication-keyid keyid ] [ ttl ttl-number
] [ version number ]
Cancel NTP multicast server mode undo ntp-service multicast-server