H3C H3C S5100-SI, Operation Manual, Page: 509 / 830

1-2
accesses made by SNMP NMS to SNMP agent. You can perform the following community
name-related configuration.
z
Specifying MIB view that a community can access.
z
Set the permission for a community to access an MIB object to be read-only or read-write.
Communities with read-only permissions can only query the switch information, while those
with read-write permission can configure the switch as well.
z
Set the basic ACL specified by the community name.
1.1.3 Supported MIBs
An SNMP packet carries management variables with it. Management variable is used to describe
the management objects of a switch. To uniquely identify the management objects of the switch,
SNMP adopts a hierarchical naming scheme to organize the managed objects. It is like a tree, with
each tree node representing a managed object, as shown in
图
1-1 . Each node in this tree can be
uniquely identified by a path starting from the root.
图
1-1 Architecture of the MIB tree
1
1 2
1 2
1 2
5 6
B
A
MIB describes the hierarchical architecture of the tree and it is the set defined by the standard
variables of the monitored network devices. In the above figure, the managed object B can be
uniquely identified by a string of numbers {1.2.1.1}. The number string is the object identifier (OID)
of the managed object.
1.2 Configuring Basic SNMP Functions
SNMPv3 configuration is quite different from that of SNMPv1 and SNMPv2c. Therefore, the
configuration of basic SNMP functions is described by SNMP versions, as listed in the following
two tables.
Switches now support configuring SNMPv3 users by using the Advanced Encryption Standard
(AES), which is the new encryption standard in place of Data Encryption Standard (DES).
Follow these steps to configure basic SNMP functions (SNMPv1 and SNMPv2c):
To do… Use the command… Remarks
Enter system view system-view —
Enable SNMP agent snmp-agent
Optional
Disabled by default.
You can enable SNMP
agent by executing this
command or any of the
commands used to
configure SNMP agent.