Nortel Networks manual Configuring Nortel Snas 4050-specific attributes using

184Chapter 4 Configuring the domain

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Configure the RADIUS server in accordance with the recommendations in RFC 2866.

Certain Nortel SNAS 4050-specific attributes are sent to the RADIUS server when you enable accounting (see “Configuring Nortel SNAS 4050-specific attributes using the SREM” on page 184). In conjunction with custom plugins on RADIUS, these attributes can be used for more detailed monitoring of Nortel SNAS 4050 activity.

When you add an external RADIUS accounting server to the configuration, the server is automatically assigned an index number. Nortel SNAS 4050 accounting will be performed by an available server with the lowest index number. You can control accounting server usage by reassigning index numbers (see “Managing RADIUS accounting servers using the SREM” on page 186).

Configuring Nortel SNAS 4050-specific attributes using the

SREM

The RADIUS accounting server uses Vendor-Id and Vendor-Type attributes in combination to identify the source of the accounting information. The attributes are sent to the RADIUS accounting server together with the accounting information for the logged in user.

You can assign vendor-specific codes to the Vendor-Id and Vendor-Type attributes for the Nortel SNAS 4050 domain. In this way, the RADIUS accounting server can provide separate accounting information for each Nortel SNAS 4050 domain.

Each vendor has a specific dictionary. The Vendor-Id specified for an attribute identifies the dictionary the RADIUS server will use to retrieve the attribute value. The Vendor-Type indicates the index number of the required entry in the dictionary file.

The Internet Assigned Numbers Authority (IANA) has designated SMI Network Management Private Enterprise Codes that can be assigned to the Vendor-Id attribute (see http://www.iana.org/assignments/enterprise-numbers).

RFC 2866 describes usage of the Vendor-Type attribute.

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