User`s guide
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Figure 2-1
Enter the appropriate IP Address and Submask and Gateway.
NOTICE:
The Switch’s factory-default IP address is 192.168.2.11 with Submask of
255.255.255.0 and a default gateway of 192.168.2.1
2.1.2 SNMP
2.1.2.1 Theory
The Simple Network Management Protocol (SNMP) is an application layer protocol
that facilitates the exchange of management information between network devices. It
is part of the Transmission Control Protocol/Internet Protocol (TCP/IP) protocol suite.
SNMP enables network administrators to manage network performance, find and
solve network problems, and plan for network growth.
An SNMP-managed network consists of three key components: Network
management stations (NMSs), SNMP agents, Management information base (MIB)
and network-management protocol：
Network management stations (NMSs) ： Sometimes called consoles, these
devices execute management applications that monitor and control network
elements. Physically, NMSs are usually engineering workstation-caliber
computers with fast CPUs, megapixel color displays, substantial memory, and
abundant disk space. At least one NMS must be present in each managed
environment.
Agents：Agents are software modules that reside in network elements. They
collect and store management information such as the number of error packets
received by a network element.
Management information base (MIB)：A MIB is a collection of managed objects
residing in a virtual information store. Collections of related managed objects are
defined in specific MIB modules.
network-management protocol ： A management protocol is used to convey
management information between agents and NMSs. SNMP is the Internet
community's de facto standard management protocol.
SNMP Operations
SNMP itself is a simple request/response protocol. NMSs can send multiple requests
without receiving a response.
Get -- Allows the NMS to retrieve an object instance from the agent.
Set -- Allows the NMS to set values for object instances within an agent.
Trap -- Used by the agent to asynchronously inform the NMS of some event. The
SNMPv2 trap message is designed to replace the SNMPv1 trap message.
SNMP community
An SNMP community is the group that devices and management stations running
SNMP belong to. It helps define where information is sent. The community name is