Alcatel Carrier Internetworking Solutions Switch/Router 用户手册

Page 12-15

To view the 

NTP

 configuration menu, enter the 

 command at the system prompt. If you 

are using verbose mode, the 

NTP

 configuration menu is displayed. Otherwise, enter a ques-

tion mark (

) at the prompt to display this menu:

The main menu options are shown in the 

 list for quick access if you need to 

change menus.

The 

 command is used to display a brief list of all 

NTP

 associations related to this 

switch (servers, peers, etc.).

To display a list of 

NTP

 associations, enter the 

 command at the system prompt. A 

display similar to the following is shown:

The list shows the mode this switch is using in relation to the association, and the address of 
the remote association. The address is either a domain name or an 

IP

 address. The available 

modes are as follows:

A host in this mode sends periodic messages regardless of the 
reachability state of stratum of its peer. By operating in this 
mode the host announces its willingness to synchronize and be 
synchronized by the peer.

  This type of association is ordinarily created upon the arrival of 

a message from a peer operating in the symmetric active mode 
and persists only as long as the peer is reachable and operat-
ing at a stratum level less than or equal to the host; otherwise 
the association is dissolved. The association will always persist 
until at least one message has been sent in reply. By operating 
in this mode the host announces its willingness to synchronize 
and be synchronized by the peer.

A host operating in this mode sends periodic messages regard-
less of the reachability state of stratum of its peer. By operating 
in this mode the host, usually a 

LAN

 workstation, announces its 

willingness to be synchronized, but not to synchronize the 
peer.