Task 7—Using HP OpenView to Create the SNMP Framework

About SNMP Demand Polls

Map color legend:

Green—The device is up.

Yellow—Multiple interfaces are down.

Light blue—One interface is down.

Dark blue—The device is detected, but it has never been managed. The device is unreachable.

Red—The device is down and unreachable.

Step 3 Select a device icon in the map (single click).

Step 4 Go to Fault.

Step 5 Select Network Connectivity: Poll Node.

Figure 28 SNMP Walk-Polling Results

Demand polls enable HPOV to:

Detect the sysobjectID (vendor ID) for each Cisco device.

Associate MIBs with each device.

Collect interface information.

Table 31

Important Fields to Inspect In the Polling Results

 

 

 

Field

 

Description

 

 

Changing SNMP sysobjectID

Indicates SNMP is working and the system identifier for the device

to .1.3.6.1.4.1.9.1.162

was found. This field appears only the first time a device is

 

 

successfully polled.

 

 

HPOV changes a generic router icon into a Cisco device icon after

 

 

the sysobjectID is found. The trailing number series, for example

 

 

.1.3.6.1.4.1.9.1.162, is the OID that identifies a node as a

 

 

Cisco device.

 

 

Supported versions

Describes which versions of SNMP are supported by HPOV, such as

 

 

SNMPv1 and SNMPv2C.

 

 

Verify node name

Verifies the node name is valid.

 

 

 

Basic Dial NMS Implementation Guide

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Cisco Systems Dial NMS manual Select Network Connectivity Poll Node, Field Description