Polycom, Inc. 431
15
Polycom DMA System SNMP Support
This chapter provides a discussion of the Polycom® Distributed Media
Application™ (DMA™) SNMP support. It includes these topics:
•SNMP Overview
•SNMP Settings
•SNMP Procedures
•The Polycom DMA System MIB

SNMP Overview

Simple Network Management Protocol (SNMP) is a communication protocol
that allows network management systems to manage resources across a
network. SNMP can be transmitted over TCP or UDP.
SNMP communication takes place between the management system and
SNMP agents, which are the hardware and software that the management
system monitors. An agent collects and stores local system information and
makes this information available to the management system via SNMP.
The Polycom DMA system software includes an SNMP agent. It translates
local system information into the format defined by the Management
Information Base (MIB). SNMP access to the DMA system is read-only. SET
operations are not supported, but GET, GETNEXT, GETBULK, NOTIFY, and
INFORM are.
The DMA system resides on a Polycom-branded Dell server running the
CentOS Linux operating system. The DMA software, CentOS, and the Dell
server each have their own MIB and SNMP agent. But the default Linux SNMP
daemon agent (
snmpd
) aggregates the information from all three and makes it
available to network management systems.