Configuration D-Link Web Smart Switch User Manual8822Figure 5.100 – ACL > ACL FinderSimple Network Management Protocol (SNMP) is an OSI Layer 7 (Application Layer) protocol designedspecifically for managing and monitoring network devices. SNMP enables network management stations toread and modify the settings of gateways, routers, switches, and other network devices. Use SNMP toconfigure system features for proper operation, monitor performance and detect potential problems in theSwitch or LAN.SNMP > SNMP > SNMP Global SettingsManaged devices that support SNMP include software (referred to as an agent), which runs locally on thedevice. A defined set of variables (managed objects) is maintained by the SNMP agent and used to managethe device. These objects are defined in a Management Information Base (MIB), which provides a standardpresentation of the information controlled by the on-board SNMP agent. SNMP defines both the format of theMIB specifications and the protocol used to access this information over the network.The default SNMP global state is disabled. Select Enabled and click Apply to enable the SNMP function.Figure 4.96 – SNMP > SNMP > SNMP Global SettingsTrap Settings: Specifies whether the device can send SNMP notifications.SNMP Authentication Traps: Specifies the device to send authentication failure notifications.Device Bootup: System boot-up information.Port Link Up / Link Down: Port connection information.RSTP Port State Change: Events of a RSTP port state changes.Firmware Upgrade State: Information of firmware upgrade - success or failure.Loopback occurring and recovery: The port status of Loopback Detection.This window is used to maintain the SNMP user table for the use of SNMPv3. SNMPv3 allows or restrictsusers using the MIB OID, and also encrypts the SNMP messages sent out between users and Switch.SNMP > SNMP > SNMP User
