Browse Prior Art Database

Method of providing Network Configuration Profiling for Open Firmware using the MAC Address

IP.com Disclosure Number: IPCOM000029228D
Original Publication Date: 2004-Jun-18
Included in the Prior Art Database: 2004-Jun-18
Document File: 2 page(s) / 53K

Publishing Venue

IBM

Abstract

Disclosed is a method of providing network configuration profiling for Open Firmware using the MAC Address by means of saving parameters for each network adapter to the NVRAM so that these properties can then be used to establish different system configurations for each network adapter.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 54% of the total text.

Page 1 of 2

Method of providing Network Configuration Profiling for Open Firmware using the MAC Address

In a detailed description of the Prior Art, for any systems supporting network adapters, it is possible to configure the system to boot only from one server. There is only one set of network parameters in NVRAM, non volatile RAM, which contain only the IP addresses, and these IPs apply globally to all the adapters.When the network parameters are changed for one adapter, the changes apply for all the other adapters. Any consecutive changes would over-write any earlier information entered.

Currently in NVRAM fw-<mac-addr> property is created for each network adapter. The MAC, media access control, address is an unique 48 bit hardware address used to identify each adapter. For instance, the ibm-fw-000255e60430 property would contain the configuration information for an adapter with a 000255e60430 MAC address.

In the p rior act, this property contains only the speed,duplex parameters that were selected for that adapter. In order to set the boot configuration for any adapter, it is necessary to change the client, server, gateway and mask IP addresses in NVRAM. Once these are changed, the configuration of these addresses will apply to all the network adpaters in the system. So for each adapter, the relevant server information is obtained from the same NVRAM properties. Hence, each adapter can only be booted from the same server unless the configuration is changed again. In pictorial form, this can be depicted as shown in Figure 1:

A D A

P T E R

1

A D A

P T E R

  N

A D A

P T E R

2

.....

 Server IP Address Client IP Address Gateway IP Address Net Mask IP Address

Figure 1: Prior Art Depiction of Network Configuration

1

[This page contains 1 picture or other non-text object]

Page 2 of 2

The new method provides a mean s such that for each adapter, different network parameters may be set, and that these configurations are not reset if parameters for a...