Appendix f: snmp, Snmp overview – GE Industrial Solutions Galaxy Pulsar Edge User Manual
Page 198
Galaxy Pulsar Edge Power System Controller
Issue 3 October 2011
198
Appendix F: SNMP
SNMP Overview
In addition to supporting the basic protocols (Telnet, HTTP, FTP, and SMTP) on TCP/IP, the
Pulsar Edge supports conveying system alarm and control information to a Network Operation
Center (NOC) using the Simple Network Management Protocol (SNMP). SNMP is the most
popular protocol for managing diverse networks. Using SNMP to access management
information data and retrieve alarm information can allow company personnel to more easily
manage system performance and remotely find and solve system problems. A Pulsar Edge serves
as an SNMP Agent. A SNMP Host system is used to communicate to a multitude of SNMP
Agents. A number of SNMP Host packages are available such as HP OpenView, Castle Rock
Computing SNMPc, IBM NetView, Lucent OneVision, and Sun Micro’s NetManager. Lineage
Power also provides a SNMP Host focused on the needs of the power engineer with its Galaxy
Manager product.
Simple Network Management Protocol is an application-layer protocol designed to facilitate the
exchange of management information between network devices. There have been several releases
of SNMP in its history and the Pulsar Edge implements a SNMPv2C Agent. SNMPv2C is
backwards compatible with SNMPv1.
A key part of the SNMP protocol is the detailed Management Information Base (MIB) that
describes all Agent variables that can be accessed. For the Pulsar Edge, this includes all the
objects controlled or monitored in the system such as: rectifiers, converters, distribution
monitoring cards, alarms, etc. Essentially, all elements described in the T1.317 protocol (see
Appendix B) are available in SNMP. The MIB will be needed by any SNMP Host that wishes to
communicate with the Pulsar Edge and can be retrieved at the “Design Tools and Download” link
located at
.