NTP and a Configured VLAN

Take note of the following considerations when configuring a VLAN:

• NTP time servers must be reachable through the interfaces that belong to the configured VLAN. Otherwise, NTP packets are not transmitted. This applies to both the unicast and the broadcast server and client.
• NTP broadcast packets are sent only on the interface that belongs to the configured VLAN.
• The received unicast or broadcast NTP packets are dropped if the interface on which the packets have been received does not belong to the configured VLAN.