Configuring SNTP
24.2.5 Modifying Broadcast Transfer Delay
When SNTP client works in the broadcast or multicast way, it needs to use broadcast
transfer delay. In the broadcast way, the local time of SNTP client equals the time receiving
from sever adds transferring time. Administrators modify the transferring time according to the
actual bandwidth in the network.
Table 24-5 configure broadcast transfer delay
Enter globally configuration mode
configure broadcast transfer
delay
sntp client broadcastdelay time
By default，transfer delay
time is 3ms
24.2.6 Configuring Multicast TTL
To restrict the pass range of multicast message, SNTP client needs configure the sending
multicast TTL when working both in the any cast and in the request way of forwarding the
multicast address.
Table 24-6 Configure multicast TTL
Enter globally configuration
sntp client multicast ttl ttl
By default，sending multicast
TTL is 255。
24.2.7 Configuring Interval Polling
Configuring interval polling is necessary when SNTP client works in the unicast or any cast
way. SNTP client adjusts the local system time by each interval polling requesting to sever.
Table 24-7 Configure interval polling
Enter globally configuration
mode
Enter port configuration mode
interface
ethernet device/slot/port
Configure interval polling
sntp client poll-interval time
By default，interval polling is
1000s
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