User Manual

Configure System Information
37
M4100 Series Managed Switch
The screen displays the MAC address assigned to the VLAN routing interface and the
routing interface status (up or down). These fields display information but cannot be
changed.
8. From the VLAN ID list, select a VLAN.
This list displays all IDs of VLANs configured on this switch.
9. In the Routing Mode field, select the option to Enable or Disable the global routing on the
selected VLAN interface.
10. Select the Configuration Method, what the switch does on start-up:
• DHCP — Transmit a DHCP request.
• Manual — Do nothing.
11. Specify the IP Address of the interface.
The factory default value is 169.254.100.100.
12. Specify the IP Subnet Mask for the interface.
The factory default value is 255.255.0.0.
13. Specify the Management VLAN ID of the switch.
The management VLAN is used for management of the switch. You can enter any value
in the range of 1–4093.
14. Click the APPLY button.
The settings are sent to the switch. Configuration changes take effect immediately. These
changes are not retained across a power cycle unless you save the configuration. See
Save Configuration on page 405.
View or Set the System Time
The managed switch software supports the Simple Network Time Protocol (SNTP). You can
also set the system time manually.
SNTP assures accurate network device clock time synchronization up to the millisecond.
Time synchronization is performed by a network SNTP server. The managed 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.