Atel IWE1200A-G, Руководство пользователя

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and can be viewed using a Web browser.
Remote log by SNMP trap.
Systems events are sent in the form of SNMP traps to
a remote SNMP management server.
Auto Recovery.
In rare cases, the firmware of the access gateway gets stuck in an invalid state
and the access gateway appears to be locked up from end user perspective. The access gateway
provides the following mechanisms to automatically recover from the lockup situation, so that
availability is enhanced:
Link integrity detection. The access gateway periodically checks the connectivity be-
tween a reference host and itself. If the connectivity is broken anyhow, the access gateway
restarts automatically. This mechanism is aimed at solving lockup caused by firmware
bugs in the TCP/IP stack of the access gateway.
Periodical restart every day. The access gateway can be configured to restart at a spe-
cific time every day. This mechanism is aimed at solving lockup caused by firmware bugs
that surface only after the access gateway has operated for a long time.
Hardware watchdog timer. The access gateway firmware has to periodically reset the
hardware watchdog timer . If it fails to do this, the hardware watchdog timer restarts the
access gateway automatically. This mechanism is aimed at solving lockup caused by firm-
ware bugs in the OS (operating system) of the access gateway.
LAN/WAN Configurable Ethernet Switch Ports. The WLAN hotspot access gateway
provides a 4-port Ethernet switch so that a stand-alone Ethernet hub/switch is not necessary for
connecting Ethernet client computers to the gateway. These Ethernet ports can be configured as
WAN ports for multiple DSL/cable-based Internet connections support.
1.3. Feature Comparison
Wired Advanced Wireless Advanced
IEEE 802.11 AP functionality
IEEE 802.1x
SNMP IEEE 802.1x MIB
Wireless client isolation
AP load balancing
1.4. LED Definitions
There are several LED indicators on the housing of the WLAN hotspot access gateway. They are de-
fined as follows:
PWR : Power
PPP : PPP/PPPoE . Lights up when a PPP or PPPoE link has been established.
ALV : Alive . Blinks when the gateway is working normally.
ST1-ST2 : Status 1 to 2 for status indication
WAN : Ethernet WAN interface
LNK : Link . Lights up when the Ethernet WAN interface is initialized successfully.
ACT : Active . Lights up when the Ethernet WAN interface is transmitting or receiving data.
100/10 1-4 : 10/100 Ethernet LAN switch ports
LNK
: Link . Lights up when an Ethernet cable is connected firmly to this Ethernet port.
ACT
: Active . Lights up when this Ethernet port is transmitting or receiving data.
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