Motorola WS5100 用户手册

5-16   WS5100 Series Switch System Reference Guide

 

3. Refer to the contents of the 

 tab for the following: 

4. To delete an entry from the list, highlight the address (by IP or MAC address) and click 

. 

5. Click the

 button to display a screen used to export DHCP Server status to secure location.

6. Click the 

 button to create a new IP address range for a target host pool. For more information, see 

. 

Secure Network Time Protocol (SNTP) is central for networks that rely on their switch managed infrastructure 
to supply system time. Without an SNTP implementation, switch time is unpredictable, which can result in 
data loss, failed processes and compromised security. With network speed, memory and capability 
increasing at an exponential rate, the accuracy, precision and synchronization of time is essential in a switch 
managed enterprise network. The switch can either use a dedicated server to supply system time or can use 
several forms of SNTP messaging to sync system time with network traffic authenticated and found secure 
for switch interoperation. When configuring a NTP server, the status will take approximately 15 minutes to 
update (within the switch Web UI) after the clock is synchronized. 

The SNTP configuration activity is divided amongst the following tasks:

•

•

•

•

SNTP provides synchronized timekeeping between the switch and a time server. Use the Configuration tab 
to define how SNTP resources are authenticated before interacting with the switch and enable ACL IDs to 
be mapped to SNTP access groups. 

To define the SNTP configuration:

1. Select

> 

from the main menu tree. 

Displays the IP address for the client with the MAC Address listed in the 

MAC 

Address/Client ID column.

Displays the MAC address (client ID) of the client using the switch’s DHCP Server to access 
switch resources. The MAC address is read-only and cannot be modified.

Displays the client type interoperating with the switch’s DHCP server.

Displays the expiration date for the lease used by this particular DHCP client interoperating 
with the switch’s DHCP server.

NOTE: Often, the switch NTP status will not be adequately updated after modifying the 
NTP configuration. Periodically check the switch NTP status when making changes to 
ensure the proper time is displayed, as it may take awhile for the switch to update the 
proper NTP status.