Operation Manual – AAA & RADIUS & HWTACACS & EADH3C S7500 Series Ethernet SwitchesChapter 1 AAA & RADIUS & HWTACACSConfiguration1-15To do... Use the command... RemarksTurn on/off theaccounting-optionalswitchaccounting optionalOptionalBy default, once an ISPdomain is created, theaccounting-optionalswitch is turned off.Set the messengerfunctionmessenger time { enablelimit interval | disable }OptionalBy default, the messengerfunction is disabled.Set the self-service serverlocation functionself-service-url { disable| enable url-string }OptionalBy default, theself-service serverlocation function isdisabled.Caution:z On an S7500 series switch, each access user belongs to an ISP domain. You canconfigure up to 16 ISP domains on the switch. When a user logs in, if no ISP domainname is carried in the user name, the switch assumes that the user belongs to thedefault ISP domain.z When a user is to be charged, if the system does not find any available accountingserver or fails to communicate with any accounting server, it will not disconnect theuser as long as the accounting optional command has been executed.z The self-service server location function must cooperate with a RADIUS server(such as CAMS) that supports self-service. Through self-service, users can manageand control their accounts or card numbers by themselves. A server installed withself-service software is called a self-service server.Note:H3C’s CAMS Server is a service management system used to manage networks andsecure networks and user information. Cooperating with other network devices (suchas switches) in a network, the CAMS Server implements the AAA (authentication,authorization and accounting) services and rights management.1.3.4 Configuring an AAA Scheme for an ISP DomainYou can use the scheme command to specify an AAA scheme. If you specify aRADIUS or HWTACACS scheme, the authentication, authorization, and accounting will