User Manual
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relationship of SNMP NMS and SNMP Agent. User can choose the following one or more features
related to community name.
1. Defines MIB view of community name.
2. Setup visit privilege of MIB objective is Write or Read. Community name with Read privilege can
check the device information only. Community name with Write privilege can configure the device.
3. Setup appointed basic visit control list of the community name.
The switch supports SNMP V1/V2c. Both SNMP V1 and V2c use public character strings for match
authentication.
SNMP usually uses UDP Port 161(SNMP) and 162 (SNMP-traps) based on TCP/IP protocol. SNMP
protocol agent is existed in network device. MIB (information specific to the device) is uses as device
connector. These network devices can be monitored or controlled through the agent. When trap event
happens, a message is transmitted by SNMP Trap, an available trap receiver can get this trap
information.
SNMP supports 3 kinds of basic operating in total:
Get:
Manager can use this to get some variable value of Agent.
Set:
Manager can use this to set up some variable value of Agent.
Trap:
Agent uses this to send an alarm to manager.
(Figure 5.11.1)
Read Community
Use a character string to name a SNMP community. This community only has Get privilege.
Read/Write Community
Use a character string to name a SNMP community. This community has Get and Set privilege.
SNMP TRAP Gateway
IP address of the receiver of the alarm information sent Agent