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GS700TR Smart Switch Software Administration Manual
Configuring System Information 2-5
v1.0, May, 2008
3. Click Cancel to cancel the configuration on the screen and reset the data on the screen to the
latest value of the switch.
4. If you change any of the network connection parameters, click Apply to apply the changes to
the system. If you want the switch to retain the new values across a power cycle, you must
perform a save by clicking Maintenance > Save Configuration. For more information, see
“Save All Applied Changes” on page 8-1.
Time
GS700TR Smart Switch software supports the Simple Network Time Protocol (SNTP).
SNTP assures accurate network device clock time synchronization up to the millisecond. Time
synchronization is performed by a network SNTP server. GS700TR Smart Switch software
operates only as an SNTP client and cannot provide time services to other systems.
Time sources are established by Stratums. Stratums define the accuracy of the reference clock. The
higher the stratum (where zero is the highest), the more accurate the clock. The device receives
time from stratum 1 and above since it is itself a stratum 2 device.
The following is an example of stratums:
• Stratum 0: A real time clock is used as the time source, for example, a GPS system.
• Stratum 1: A server that is directly linked to a Stratum 0 time source is used. Stratum 1 time
servers provide primary network time standards.
• Stratum 2: The time source is distanced from the Stratum 1 server over a network path. For
example, a Stratum 2 server receives the time over a network link, via NTP, from a Stratum 1
server.
Information received from SNTP servers is evaluated based on the time level and server type.
SNTP time definitions are assessed and determined by the following time levels:
Default Gateway The default gateway for the IP interface. The factory default value is
192.168.0.1.
Management VLAN ID Specifies the management VLAN ID of the switch. The range is 1-4078.
The management VLAN is used for management of the switch. This
field is configurable for administrative users and read-only for other
users.
Table 2-2. Network Connectivity Fields (continued)
Field Description