Consecuencias de las conductas agresivas

Network Configuration and 3100 Series Devices . . . 2-2 3100 Series Device Configuration. . . 2-2 Methods for Discovering and Managing 3100 Series Devices . . . 2-2 Discovering 6700 Series Proxied Devices . . . 2-4 Network Configuration and 6700 Series Proxied Devices . . . 2-4 6700 Series NMS Device Profiles. . . 2-4 6700 Series NMS SNMP Proxy Agent Configuration . . . 2-4 6700 Series Proxied Device Configuration. . . 2-4 Methods for Discovering and Managing 6700 Series Proxied Devices . . 2-5 Notes on Using PPP . . . 2-8 Trap Handling and Alarm Propagation. . . 2-8 Dial-Backup Module Addressing . . . 2-9 Device Symbols . . . 2-9

Overview

This chapter describes the steps you need to take to discover and manage the AT&T Paradyne 3100 Series and 6700 Series proxied devices supported by the DCE Manager. The first part of the chapter discusses 3100 Series devices; the second part discusses proxied devices.

Discovering 3100 Series Devices

For the DCE Manager to discover and manage 3100 Series devices, do the following:

• Configure the network so that HP OpenView can communicate with a device over a direct or dial-up connection

• Configure your 3100 Series devices so that they can communicate with the management system running HP OpenView

Also, you may need to issue HP OpenView commands so that discovery can take place.

The sections that follow discuss these step in detail.

NOTE

For the DCE Manager to manage 3100 Series devices correctly, the HP OpenView map must be read-write.

2

Network Configuration and 3100 Series Devices

HP OpenView can establish a management link to 3100 Series devices over a LAN (via a router or LAN adapter), a leased line, or a dial-up connection. The DCE Manager provides no direct support for link establishment or disconnection. It is your responsibility to provide the hardware and software that enables HP OpenView to communicate with the devices over the various link types.

Discovery and management of devices is straightforward over LAN and leased-line connections.

Once you have the necessary hardware and software in place and configured, HP OpenView discovers the devices and maintains a continual diagnostic link to them (see the sections that follow for information on configuration and discovery). Dial-up connections are more problematic because you may need to manually configure the PPP software with a large number of phone numbers. Also, dialing a large number of devices may take a long time. Additionally, you should be aware that if you only dial a device on an as-needed basis, the device appears on the map in an unknown state (color blue) during those times when no connection exists. See Notes on Using PPP.

3100 Series Device Configuration

The DCE Manager does not enable you to configure a 3100 Series from scratch. Before HP OpenView can discover any 3100 Series device, an operator at the device site must do some configuration using the device’s front panel. The individual device manuals provide detailed information on device configuration.

The following is a list of some of the front panel configuration options that you need to consider:

• gen

• trap

• alarm

• user

Methods for Discovering and Managing 3100 Series Devices

The following sections discuss how 3100 Series devices are discovered over direct and dial-up connections.

Discovery over a Direct Connection

A 3100 Series device is automatically discovered in two ways:

• As a result of the standard HP OpenView object discovery process

• As a result of a device sending a trap to the HP OpenView management system

If the IP address of a discovered device makes the device a member of a managed subnet (as a result of a matching subnet mask), the device symbol appears on the submap in a managed state. If a device is not part of a managed subnet, its symbol appears in an unmanaged state (color tan).

If you add a device to the network between HP OpenView’s discovery polling cycle, you can force discovery by issuing one of the following commands:

• From the UNIX command line, TYPE: ping <IP address>

Where: IP address is the Internet address of the device

• From the HP OpenView menu, select Diagnose–>Network Connectivity–>Ping (supplying the Internet address of the device)

(To change the rate of discovery polling, use the menu selection Options–>Topology/Status Polling: IP.)

After a device has been discovered and managed, the color of the device symbol changes depending on the status of its device interfaces. If all the interfaces are green (operational), the device symbol remains green. If an interface is in an error state, the device symbol takes on the color of the interface with severest error state. If HP OpenView loses contact with an operational device, the device symbol turns blue and the line connecting the symbol to the bus turns red. (Note, however, that the interface symbol colors on the rear-panel display always reflect the last known states.)

Discovery over a Dial-Up Connection

To discover a 3100 Series device over a dial-up connection:

1. Configure your PPP software to support a dial-up connection.

2. Establish a connection.

3. Issue one of following commands:

• From the UNIX command line, TYPE: ping <IP address>

Where: IP address is the Internet address of the device

• From the HP OpenView menu, select Diagnose–>Network Connectivity–>Ping (supplying the Internet address of the device).

A 3100 Series device can also be discovered if the device sends a trap to the HP OpenView management system. Refer to your device manual for information on configuring a device to send traps to an NMS (HP OpenView).

You can configure a device so that it is automatically discovered on start-up by configuring it to send a warmStart trap to the HP OpenView management system.

NOTE

Ensure that either the device or the PPP software is configured to terminate the connection after the trap has been sent (normally the default setting). This is an important point because you could inadvertently incur large connection charges if the connection remains up after the device has sent the trap information. See Notes on Using PPP.