Cisco Cisco IOS Software Release 12.4(2)XB6 テクニカルリファレンス

To enable support for Radius Disconnect on the Cisco PDSN, use the cdma pdsn radius disconnect 
command in Global configuration. Use the no form of the command to disable this feature.

By default the PDSN will not process a Disconnect Request received with only the nai attribute.

Global Configuration

By default the PDSN will not process a Disconnect Request received with only NAI attribute. In a 
Service provider environment all simple IP sessions can be opened with the same user-name (and in case 
of Resource Management for sessions), therefore, a session identification attribute will be sent in 
Disconnect Request. Additionally, the overhead to maintain tables relating sessions and NAI can be 
avoided in such cases.

But if the PDSN can receive a Disconnect Request with only an NAI attribute in a particular 
environment, then nai keyword should be configured.

This configuration will set the Session Termination Capability VSA value to 1. The presence of other 
feature configurations (like MIP Revocation) can alter that value. 

The following example illustrates the cdma pdsn radius disconnect command:

Router(config)#cdma pdsn radius disconnect nai 

(Optional) Indicates whether to enable processing of Disconnect 
Request received with only the NAI attribute.

12.3(11)YF

This command was introduced.