User's Manual

27
Time
Packet Receiving
Timeout
Set the timeout for dropped packets.
30 s
Packet Transmit Retries
Set packet transmit retries.
3
Query SMS Interval
Set how long to check SMS.
24 h
Trust Phone List
Set trusted phone numbers and use comma to
separate multiple numbers
N/A
3.3.5 SNMP
Network devices are usually sparsely-located on a network. It is time-consuming for the
administrator to configure and manage these network devices on site. In addition, if these
devices are from different vendors, each of which provides a suite of independent management
interfaces (for example, different command line interfaces), the workload of configuring the
devices in batches is huge. In this situation, traditional manual configuration method has the
deficiencies of high cost and low efficiency. The network administrator can use the Simple
Network Management Protocol (SNMP) to remotely configure and manage the devices and
perform real-time monitoring on them.
Figure 3-1 shows how to manage devices using SNMP.
Figure 3-1 SNMP Topology
To run the SNMP protocol on a network, configure the NMS program on the management side
and SNMP agent on the managed devices.
By using SNMP:
 The NMS can collect status information of the managed devices anytime and anywhere
through agents and remotely control these devices.