Product Manual

Traps
DES-3526 / DES-3526DC Fast Ethernet Layer 2 Switch
Traps are messages that alert network personnel of events that occur on the Switch. The events can be
as serious as a reboot (someone accidentally turned OFF the Switch), or less serious like a port status
change. The Switch generates traps and sends them to the trap recipient (or network manager). Typical
traps include trap messages for Authentication Failure, Topology Change and Broadcast\Multicast
Storm.
MIBs
The Switch in the Management Information Base (MIB) stores management and counter information.
The Switch uses the standard MIB-II Management Information Base module. Consequently, values for
MIB objects can be retrieved from any SNMP-based network management software. In addition to the
standard MIB-II, the Switch also supports its own proprietary enterprise MIB as an extended
Management Information Base. Specifying the MIB Object Identifier may also retrieve the proprietary
MIB. MIB values can be either read-only or read-write.
The DES-3526 incorporates a flexible SNMP management for the switching environment. SNMP
management can be customized to suit the needs of the networks and the preferences of the network
administrator. Use the SNMP V3 menus to select the SNMP version used for specific tasks.
The DES-3526 supports the Simple Network Management Protocol (SNMP) versions 1, 2c, and 3.
The administrator can specify the SNMP version used to monitor and control the Switch. The three
versions of SNMP vary in the level of security provided between the management station and the
network device.
SNMP settings are configured using the menus located on the SNMP V3 folder of the web manager.
Workstations on the network that are allowed SNMP privileged access to the Switch can be restricted
with the Management Station IP Address menu.
SNMP User Table
The SNMP User Table displays all of the SNMP User's currently configured on the Switch.
In the SNMP Manager folder, located in the Security Management folder, click on the SNMP User
Table link. This will open the SNMP User Table window, as shown below.
Figure 7- 26. SNMP User Table window
To delete an existing SNMP User Table entry, click the X below the Delete heading corresponding to
the entry you wish to delete.
To display the detailed entry for a given user, click on the hyperlinked User Name. This will open the
SNMP User Table Display window, as shown below.
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