4 diagnostics using snmp – Siemens Electrical Lean Switch User Manual

Page 71

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Diagnostics over Industrial Ethernet

Industrial Ethernet
A5E00152007-03

71

6.4 Diagnostics Using SNMP

With SNMP (Simple Network Management Protocol), a network management
station can configure and monitor SNMP-compliant nodes such as the ELS. To
make this possible, a management agent is installed in the DTE with which the
management station exchanges data using SNMP Get and Set requests. The ELS
supports SNMP V1.

The data that can be managed are in a database on the DTE (ELS) known as the
MIB (Management Information Base) that can be accessed by the management
station (or the applet of the ELS Web-Based Management) using the agent.

There are standardized MIBs defined in RFCs and private MIBs. Private MIBs are
based on RFC 1213 and contain product-specific expansions not included in
standard MIBs.

The ELS with network management supports MIB II (RFC 1213).

ELS private MIB

The private MIB of the ELS is on the supplied CD.

The private MIB file can also be downloaded from an ELS directly with a Web
browser at http://<IP address of the ELS>/snELS.mib.
Please note the capitalization of snELS.mib!
The description of the MIB objects of the private MIB is included in the MIB and
can be read directly with a MIB compiler (for example the network management
station) or with a text editor.

The read-only community string (SNMP password for read access) is set to
public, the read-write community string (SNMP password for read and write
access) is set to private.

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