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E/OS SNMP Support Manual
Introduction to SNMP
that can be managed. In such a case, the list of commands a manager
must be able to issue is overwhelming, and every new manageable
device increases the list. SNMP was created to simplify the task of
managing and meeting the demands of any growing network.
SNMP operates on a simple fetch-store concept. With SNMP, the
available transactions between manager and agent are limited to a
handful. The manager can request information from the agent or
modify variables on the agent. The agent can respond to a request by
sending information, or if enabled to do so, voluntarily notify the
manager of a change of status on the agent (issue a trap).
SNMP Features
SNMP is the only network management protocol that is widely
available from many vendors of TCP/IP networks and
internetworks.
Features of SNMP:
• Simple set of commands for network management.
• Minimal intervention required to manage new devices added to a
network.
• Adequate for many basic network management needs.
• Generalized for application to networks other than TCP/IP, such
as IPX and OSI.
• Considerable versatility for managing many types of devices.
• Same method of management can be used for all networks.
• Addresses security threats through authentication, data
encryption and access control.
SNMP Commands
The main SNMP commands are
Get, GetNext, GetResponse, GetBulk,
Inform, Trap and Set
.
• Get – The manager uses this command to fetch the value of a
specified variable from the agent.
• GetNext –The manager uses this command to fetch the value of
the variable next to the one specified in the command. This
command is used to retrieve lists and tables of management data.
• GetResponse –An agent sends the requested information to the
manager using this PDU.
Summary of Contents for 316095-B21 - StorageWorks Edge Switch 2/24
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