2-3z If you have configured to use "." as the delimiter, for a user name that contains multiple ".", the first"." will be used as the domain delimiter.z If you have configured to use "@" as the delimiter, the "@" must not appear more than once in theuser name.z If the system does not find any available accounting server or fails to communicate with anyaccounting server when it performs accounting for a user, it does not disconnect the user as longas the accounting optional command has been executed, though it cannot perform accounting forthe user in this case.z The self-service server location function needs the cooperation of a RADIUS server that supportsself-service, such as comprehensive access management server (CAMS). Through self-service,users can manage and control their account or card numbers by themselves. A server installedwith self-service software is called a self-service server.3Com's CAMS Server is a service management system used to manage networks and ensure networkand user information security. With the cooperation of other networking devices (such as switches) in anetwork, a CAMS server can implement the AAA functions and right management.Configuring an AAA Scheme for an ISP DomainYou can configure a combined AAA scheme or separate AAA scheme on the switch.z If both are configured, separate AAA schemes apply.z Once the authentication command is configured, separate AAA schemes, if any, apply.Configuring a combined AAA schemeYou can configure a combined AAA scheme by using the scheme command.Before configuring a combined AAA scheme, do the following:z For RADIUS or HWTACACS authentication, configure the RADIUS or HWTACACS scheme to bereferenced first. The local and none authentication methods do not require any scheme.z Determine the access mode or service type to be configured. With AAA, you can configure anauthentication method specifically for each access mode and service type, limiting theauthentication protocols that can be used for access.z Determine whether to configure an authentication method for all access modes or service types.Table 2-4 Configure a combined AAA schemeOperation Command RemarksEnter system view system-view —
