Snmp Mibs And Message Types - Cisco 15216 EDFA2 Operation Manual

Chapter 5 SNMP MIB Installation and Configuration
Figure 5-2
SNMP Manager
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
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).
78-16033-01
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
SNMP Agent and MIB
NMS
get, get-next, get-bulk
get-response, traps
Network device
MIB
SNMP Agent
SNMP Manager) uses the SNMP MIBs to
Cisco ONS 15216 EDFA2 Operations Guide
SNMP Overview
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