3Com S7906E - Switch, Руководство по настройке

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Configuring the multicast server
To do… Use the command… Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
Enter the interface used to
send NTP multicast message.
Configure the device to work in
the NTP multicast server mode
ntp-service multicast-server
[ ip-address ]
[ authentication-keyid keyid |
ttl ttl-number | version
number ] *
Required
z
A multicast server can synchronize broadcast clients only after its clock has been synchronized.
z
You can configure up to 254 multicast clients, among which 128 can take effect at the same time.
Configuring the Local Clock as a Reference Source
A network device can get its clock synchronized in one of the following two ways:
z
Synchronized to the local clock, which works as the reference source.
z
Synchronized to another device on the network in any of the four NTP operation modes previously
described.
If you configure two synchronization modes, the device will choose the optimal clock as the reference
source.
Follow these steps to configure the local clock as a reference source:
To do… Use the command… Remarks
Enter system view system-view —
Configure the local clock as a
reference source ntp-service refclock-master
[ ip-address ] [ stratum ]
Required