Traps; Management Information Base (Mib) - D-Link DGS-6600 Series Hardware Installation Manual

DGS-6600 Layer 3 Chassis Ethernet Managed Switch Hardware Installation Guide
SNMP v.3 uses a more sophisticated authentication process that is separated into two parts. The first part is to
maintain a list of users and their attributes that are allowed to act as SNMP managers. The second part describes
what each user on that list can do as an SNMP manager.
The Switch allows groups of users to be listed and configured with a shared set of privileges. The SNMP version
may also be set for a listed group of SNMP managers. Thus, a group of SNMP managers can be created to view
read-only information or receive traps using SNMP v.1 while assigning a higher level of security to another group,
granting read/write privileges using SNMP v.3.
Using SNMP v.3 individual users or groups of SNMP managers can be allowed to perform or be restricted from
performing specific SNMP management functions. The functions allowed or restricted are defined using the
Object Identifier (OID) associated with a specific MIB. An additional layer of security is available for SNMP v.3 in
that SNMP messages may be encrypted. To read more about how to configure SNMP v.3 settings for the Switch
read the section entitled Management.

Traps

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 Failures, Topology Changes and Broadcast \ Multicast Storms. The current traps
generated by the DGS-6600 are limited to only inband IPv4 events.

Management Information Base (MIB)

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. The proprietary
MIB may also be retrieved by specifying the MIB Object Identifier. MIB values can be either read-only or read-
write.
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