Configuring the maximum number of dynamic associations

NTP has the following types of associations:

• Static association—A manually created association.

• Dynamic association—Temporary association created by the system during NTP operation. A dynamic association is removed if no messages are exchanged within about 12 minutes.

The following describes how an association is established in different association modes:

• Client/server mode—After you specify an NTP server, the system creates a static association on the client. The server simply responds passively upon the receipt of a message, rather than creating an association (static or dynamic).

• Symmetric active/passive mode—After you specify a symmetric-passive peer on a symmetric active peer, static associations are created on the symmetric-active peer, and dynamic associations are created on the symmetric-passive peer.

• Broadcast or multicast mode—Static associations are created on the server, and dynamic associations are created on the client.

A single device can have a maximum of 128 concurrent associations, including static associations and dynamic associations.

Perform this task to restrict the number of dynamic associations to prevent dynamic associations from occupying too many system resources.

To configure the maximum number of dynamic associations: