ZyXEL Communications VMG3312-T20A - Page 69

Chapter 5 Network Map and Status Screens
VMG3312-T20A User’s Guide
69
Security
Firewall This displays the firewall’s current security level.
System Status
System Up Time This field displays how long the VMG has been running since it last started up. The VMG starts
up when you plug it in, when you restart it (Maintenance > Reboot), or when you reset it.
Current Date/
Time
This field displays the current date and time in the VMG. You can change this in
Maintenance> Time Setting.
System Resource
CPU Usage This field displays what percentage of the VMG’s processing ability is currently used. When
this percentage is close to 100%, the VMG is running at full load, and the throughput is not
going to improve anymore. If you want some applications to have more throughput, you
should turn off other applications (for example, using QoS; see Chapter 10 on page 145).
Memory Usage This field displays what percentage of the VMG’s memory is currently used. Usually, this
percentage should not increase much. If memory usage does get close to 100%, the VMG is
probably becoming unstable, and you should restart the device. See Section 34.2 on page
248, or turn off the device (unplug the power) for a few seconds.
NAT Session
Usage
This field displays what percentage of the VMG supported NAT sessions are currently being
used. This field also displays the number of active NAT sessions and the maximum number of
NAT sessions the VMG can support.
Interface Status
Interface This column displays each interface the VMG has.
Status This field indicates the interface’s use status.
For the LAN and Ethernet WAN interfaces, this field displays Up when using the interface and
No Link when not using the interface.
For the WLAN interface, this field displays the enabled (Up) or disabled (Disable) state of the
interface.
For the DSL interface, this field displays Down (line down), Up (line up or connected), Drop
(dropping a call) if you're using PPPoE encapsulation, and No Link when not using the
interface.
For the cellular interface, this field displays Up when using the interface and No Device when
no device is detected in any USB slot.
Rate For the LAN and Ethernet WAN interfaces, this displays the port speed and duplex setting.
For the DSL interface, it displays the downstream and upstream transmission rate.
For the WLAN interface, it displays the maximum transmission rate or N/A with WLAN
disabled.
For the cellular interface, this field displays signal strength bars when a cellular device is
installed in a USB slot and N/A when no device is detected in the USB slot.
Table 8 Status Screen (continued)
LABEL DESCRIPTION