Snmp Versions; Supported Mibs - H3C S5600 Series Operation Manual

Operation Manual – SNMP-RMON
H3C S5600 Series Ethernet Switches
An NMS can send GetRequest, GetNextRequest and SetRequest messages to the
agents. Upon receiving the requests from the NMS, an agent performs Read or Write
operation on the managed object (MIB, Management Information Base) according to
the message types, generates the corresponding Response packets and returns them
to the NMS.
When a network device operates improperly or changes to other state, the agent on it
can also send traps on its own initiative to the NMS to report the events.

1.1.2 SNMP Versions

Currently, SNMP agent on a switch supports SNMPv3, and is compatible with SNMPv1
and SNMPv2c.
SNMPv3 adopts user name and password authentication.
SNMPv1 and SNMPv2c adopt community name authentication. The SNMP packets
containing invalid community names are discarded. SNMP community name is used to
define the relationship between SNMP NMS and SNMP agent. Community name
functions as password. It can limit accesses made by SNMP NMS to SNMP agent. You
can perform the following community name-related configuration.
Specifying MIB view that a community can access.
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.
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
starting from the root.
1
1
5
A
Figure 1-1 Architecture of the MIB tree
Figure 1-1. Each node in this tree can be uniquely identified by a path
1
2
1 2
2
B
6
1-2
Chapter 1 SNMP Configuration