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Appendix IV- Services
Ping WatchDog
The ping watchdog sets the device to continuously ping a user defined IP address (it can
be the internet gateway for example). If it is unable to ping under the user defined
constraints, the device will automatically reboot. This option creates a kind of "fail-proof"
mechanism.
Ping Watchdog is dedicated for continuous monitoring of the particular connection to
remote host using the Ping tool. The Ping works by sending ICMP “echo request” packets
to t
he target host and listening for ICMP “echo response” replies. If the defined number of
replies is not received, the tool reboots the device.
Enable Ping Watchdog:
control will enable Ping Watchdog Tool.
IP Address To Ping:
enter the target host IP address to monitor.
Ping Interval:
specify time interval (in seconds) between to send the ICMP “echo
requests”.
Startup Delay:
specify initial time delay (in seconds) from device startup or reboot to start
sending first ICMP “echo requests”. Minimum value is 60 seconds.
Failure Count To Reboot:
specify the number of ICMP “echo response” replies. If the
specified number of ICMP “echo response” packets is not received continuously, the Ping
Watchdog Tool will reboot the device.
SNMP Agent
Simple Network Monitor Protocol (SNMP) is used in network management systems to
monitor network-attached devices for conditions that warrant administrative attention.
Device contains an SNMP agent which allows it to communicate to SNMP manage
applications for network provisioning.
SNMP Agent provides an interface for device monitoring using the Simple Network
Management Protocol (an application layer protocol that facilitates the exchange of
management information between network devices). SNMP Agent allows network
administrators to monitor network performance, find and solve network problems. For the
purpose of equipment identification, it is always a good idea to configure SNMP agents
with contact and location information:
Enable SNMP Agent:
control will enable SNMP Agent.
SNMP Community:
specify SNMP community string. It is required to authenticate access
to MIB objects and functions as embedded password. The device supports a Read-only
community string that gives read access to authorized management stations to all the
objects in the MIB except the community strings, but does not allow write access for
device that supports SNMP v1.
Contact:
specify the identity or contact in case an emergency situation arise.
Location:
specify the physical location of the device.
