Motorola WS5100 用户手册

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页码 364
Switch Services   
5-17
 
2. Select the 
Configuration
 tab. 
3. An ACL Id must be created before it is selectable from any of the drop-down menus. Refer to the 
Access 
Group 
field to define the following:
4. Refer to the 
Other Settings
 field to define the following:
Full Access
Supply a numeric ACL ID to enable the supplied ACL ID full access. 
Only Control Queries
Supply a numeric ACL ID to enable the supplied ID only control query access to SNTP 
resources. 
Server and Query 
Access
Enter a numeric ACL ID to enable the supplied ACL ID Server and Query access to SNTP 
resources. 
Only Server Access
Define a numeric ACL ID to enable the supplied ACL ID only server access to SNTP resources. 
Authenticate Time 
Sources
Select this checkbox to ensure a credential authentication step is included between the 
SNTP server and the switch. When this checkbox is selected, the Apply and Revert buttons 
become enabled to save or cancel settings within the Other Settings field. 
Act As NTP Master 
Clock
When this checkbox is selected, the Apply and Revert buttons become enabled to save or 
cancel settings within the Other Settings field.
Clock Stratum
Define how many hops (from 1 to 15) the switch is from a SNTP time source. The switch 
automatically chooses the SNTP resource with the lowest stratum number. The SNTP 
supported switch is careful to avoid synchronizing to a server that may not be accurate. Thus, 
the SNTP enabled switch never synchronizes to a machine not synchronized itself. The SNTP 
enabled switch compares the time reported by several sources, and does not synchronize to 
a time source whose time is significantly different than others, even if its stratum is lower.
Listen to NTP 
Broadcasts
Select this checkbox to allow the switch to listed over the network for SNTP broadcast 
traffic. Once enabled, the switch and the SNTP broadcast server must be on the same 
network.