3Com 4200G 12-Port Configuration Manual page 292

278 C 33: SNMP C
HAPTER
MIBs Supported by
the Device
ONFIGURATION
The management variable in the SNMP packet describes management objects of a
device. To uniquely identify the management objects of the device in SNMP messages,
SNMP adopts the hierarchical naming scheme to identify the managed objects. It is
like a tree, and each tree node represents a managed object, as shown in Figure 86.
Thus the object can be identified with the unique path starting from the root.
Figure 86 Architecture of the MIB tree
The management information base (MIB) is used to describe the hierarchical
architecture of the tree and it is the set defined by the standard variables of the
monitored network device. In Figure 86, the managed object B can be uniquely
specified by a string of numbers {1.2.1.1}. The number string is the Object Identifier of
the managed object.
The common MIBs supported by the system are listed in Table 248.
Table 248 Common MIBs
MIB attribute
Public MIB
1
1
1
1
B
5
A
MIB content
MIB II based on TCP/IP network
device
BRIDGE MIB
RIP MIB
RMON MIB
Ethernet MIB
OSPF MIB
IF MIB
2
2
2
6
References
RFC1213
RFC1493
RFC2675
RFC1724
RFC2819
RFC2665
RFC1253
RFC1573