3Com 2500 manual Management, Information Base

13-4 CHAPTER 13: REMOTE MONITORING (RMON) TECHNOLOGY

Management console

LAN

LANplex® 2500 system with embedded RMON probe

Fast Ethernet ports

Ethernet ports

File Servers

	Figure 13-1 Embedded RMON Implemented on the LANplex System
Management	A MIB is a structured set of data that describes the way the network is
Information Base	functioning. The management software, known as the agent, gains access to
(MIB)	this set of data and extracts the information it needs. The agent can also
	store data in the MIB.
	The organization of a MIB allows a Simple Network Management Protocol
	(SNMP) network management package such as the Transcend Enterprise
	Manager application suite to manage a network device without a specific
	description of that device. 3Com ships SNMP MIB files with LANplex
	Extended Switching System software as ASN.1 files.
MIB Objects	The data in the MIB consists of objects that represent features of the
	equipment that an agent can control and manage. Examples of objects in
	the MIB include a port that you can enable or disable and a counter that
	you can read.
	A counter is a common type of MIB object used by RMON. A counter object
	might record the number of frames transmitted onto the network. The MIB
	might contain an entry for the counter object something like the one in
	Figure 13-2 for the counter object.