NS3503-16P-4C User Manual
56
Figure 4-2-20 Logging Messages Page Screenshot
The page includes the following fields:
Object
Description
No.
This is the number for logs
Timestamp
Display the time of log
Category
Display the category type
Severity
Display the severity type
Message
Display the log message
Buttons
: Click to clear the log.
: Click to refresh the log.
4.2.7 SNMP Management
4.2.7.1 SNMP Overview
The
Simple Network Management Protocol (SNMP)
is an application layer protocol that facilitates the
exchange of management information between network devices. It is part of the
Transmission Control
Protocol/Internet Protocol (TCP/IP)
protocol suite. SNMP enables network administrators to manage
network performance, find and solve network problems, and plan for network growth.
An SNMP-managed network consists of three key components: Network management stations (NMS’s),
SNMP agents, Management information base (MIB) and network-management protocol:
Network management stations (NMS’s):
Sometimes called consoles, these devices execute
management applications that monitor and control network elements. Physically, NMS’s are usually
engineering workstation-caliber computers with fast CPUs, megapixel color displays, substantial
memory, and abundant disk space. At least one NMS must be present in each managed
environment.
Agents
Agents are software modules that reside in network elements. They collect and store
management information such as the number of error packets received by a network element.