About Snmp; Figure 17-3 Snmp Management Model; Table 17-1 Access Control Summary - ZyXEL Communications Dimension ES-3124 User Manual

Dimension ES-3124 Ethernet Switch
Number of
sessions
allowed
Number of
concurrent
sessions
allowed

17.3 About SNMP

Simple Network Management Protocol is a protocol used for exchanging management information between
network switches. SNMP is a member of TCP/IP protocol suite. A manager station can manage and monitor the
ES-3124 through the network via SNMP version one (SNMPv1) and/or SNMP version 2c. The next figure
illustrates an SNMP management operation. SNMP is only available if TCP/IP is configured.
An SNMP managed network consists of two main components: agents and a manager.
An agent is a management software module that resides in a managed switch (the ES-3124). An agent translates the
local management information from the managed switch into a form compatible with SNMP. The manager is the
console through which network administrators perform network management functions. It executes applications
that control and monitor managed devices.
The managed devices contain object variables/managed objects that define each piece of information to be collected
about a switch. Examples of variables include such as number of packets received, node port status etc. A
Management Information Base (MIB) is a collection of managed objects. SNMP allows a manager and agents to
communicate for the purpose of accessing these objects.
17-2

Table 17-1 Access Control Summary

Console port Telnet
1 1
1 console port or Telnet.
Console port has priority.

Figure 17-3 SNMP Management Model

FTP Web
1 5
1 5
SNMP
No limit
No limit
Access Control