Cisco Systems 15216 EDFA2 manual Snmp MIBs and Message Types, Snmp Manager

Chapter 5 SNMP MIB Installation and Configuration

SNMP Overview

F I N A L D R A F T - C I S C O C O N F I D E N T I A L

Figure 5-2 SNMP Agent and MIB

	NMS		Network device
		get, get-next, get-bulk
		get-response, traps
SNMP Manager
			MIB
			SNMP Agent

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5.1.2.2 SNMP MIB

The SNMP MIBs (CERENT-15216-EDFA-MIB.mib and CERENT-GLOBAL-REGISTRY.mib) are files written in ASN.1 syntax. The CERENT-15216-EDFA-MIB.mib specifies what ONS 15216 EDFA2 information needs to be controlled and monitored. This MIB is pre-installed on the SNMP agent and is accessible via the CLI.

The CERENT-15216-EDFA-MIB.mib and other MIBs can also be installed on a third-party SNMP manager located at a network management center. The SNMP manager at the network management center or the SNMP manager, accessible via the CLI, (see SNMP Manager) uses the SNMP MIBs to communicate with the SNMP agent.

5.1.2.3 SNMP Manager

The ONS 15216 EDFA2 comes with a pre-installed SNMP manager accessible via the CLI. This SNMP manager can be accessed and used to communicate with the SNMP agent that is also pre-installed on each ONS 15216 EDFA2. This manual displays examples of issuing SNMP commands to the amplifier using the built-in SNMP manager.

5.1.2.3.1 Third-party, Vendor-Specific SNMP Managers

SNMP managers from third-party vendors running on a separate computer located at a network management center are often used to manage network elements. If a third-party SNMP manager is used, it must be able to communicate with the SNMP agent pre-installed on the ONS 15216 EDFA2.

If a third-party SNMP manager is used, it is assumed that the SNMP manager is pre-installed prior to the SNMP MIB installation. Each vendor-specific SNMP manager has an unique set of instructions for SNMP MIB installation. For directions on loading the SNMP MIBs, refer to SNMP manager documentation.

Cisco does not provide or recommend a standard third-party SNMP manager.

5.1.3 SNMP MIBs and Message Types

SNMP operations can be quite powerful. A manager can retrieve or modify the value of management information accessible by an agent, an agent can report an event to a manager, and the manager can inform another manager of the value of management information on an agent. Using retrieval and modification operations, a manager can cause an agent to perform an action or execute a command. The manager can also create new and delete existing instances of management information.

A MIB is a hierarchically-organized collection of information. Network management protocols, such as SNMP, gain access to these MIBs. MIBs consist of managed objects and are identified by object identifiers (OID).

Cisco ONS 15216 EDFA2 Operations Guide

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