3Com Switch 7754, Configuration Manual

Page: 740 / 940

740 C
HAPTER
68: SNMP C
ONFIGURATION
■
Define MIB view that a community can access.
■
Set read-only or read-write right to access MIB objects for the community. The
read-only community can only query device information, while the read-write
community can configure the device.
■
Set the basic ACL specified by the community name.
MIBs Supported by the
Device
The management variable in the SNMP packet is used to describe 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 189. Thus the object can be identified with the unique
path starting from the root.
Figure 189 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 the above figure, 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 594.
Table 594 Common MIBs
MIB attribute MIB content References
Public MIB MIB II based on TCP/IP network device RFC1213
BRIDGE MIB RFC1493
RFC2675
RIP MIB RFC1724
RMON MIB RFC2819
Ethernet MIB RFC2665
OSPF MIB RFC1253
IF MIB RFC1573
A
2
6
1
5
2
1
1
2
1
B