4.4.2 POE C
ONFIGURATION
The switch complies with IEEE 802.3af protocol and be capable of detecting automatically that whether the
device linked to the port on the switch is PD (Powered Device) or not. The switch also manage the power
supplement based on the Class of the PD, and it will stop supplying the power once the power required by the
PD excesses the Class, Short Circuit or over temperature occurs.
Table 4-15. PoE Configuration screen settings
Parameter Description
Status Include
Normal
or
Active
two kinds of status. The former means the
port is ready to link and supply the power to the PD at any time. The
latter means the port is in the condition of supplying the power.
State
Enable
means the manager allows the power supplied to the PD is
legal while the port linked to the PD;
Disable
means the port does
not own PoE function.
Priority
Three options are offered for the user to choose, including Normal,
Low and High. Default is Normal. The switch will stop supplying the
power to the port based on the order of the priority
Low
Æ
Normal
Æ
High in case total power required by all PDs linked to
the switch excesses the power limit. As the ports have the same
priority, then the switch will cease the power supplement from the
port with the highest port id (12
Æ
1).
Power (W)
The power is consumed by the port
Current (mA)
The current is supplied to the PD by the port
Class
The Class of the PD linked to the port of the switch
4.5 SNMP Configuration
Any Network Management System (NMS) running the Simple Network Management Protocol (SNMP) can
manage the Managed devices equipped with SNMP agent, provided that the Management Information Base
(MIB) is installed correctly on the managed devices. The SNMP is a protocol that is used to govern the transfer
of information between SNMP manager and agent and traverses the Object Identity (OID) of the management
Information Base (MIB), described in the form of SMI syntax. SNMP agent is running on the switch to
response the request issued by SNMP manager.
Basically, it is passive except issuing the trap information. The switch supports a switch to turn on or off the
SNMP agent. If you set the field SNMP
Enable
, SNMP agent will be started up. All supported MIB OIDs,
including RMON MIB, can be accessed via SNMP manager. If the field SNMP is set
Disable
, SNMP agent will
be de-activated, the related Community Name, Trap Host IP Address, Trap and all MIB counters will be
ignored.
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CHAPTER 4: Web-Based Management
