Command Manual – AAA&RADIUS&HWTACACSH3C S3610&S5510 Series Ethernet SwitchesChapter 1 AAA & RADIUS & HWTACACSConfiguration Commands1-46z The undo radius scheme command cannot be used to delete the defaultRADIUS scheme. In addition, you cannot delete a RADIUS scheme which is beingused by an online user.Related command: key, retry realtime-accounting, timer realtime-accounting,stop-accounting-buffer enable, retry stop-accounting, server-type, state,user-name-format, retry, display radius and display radius statistics.Example# Create a RADIUS scheme named radius1 and enter its view. system-viewSystem View: return to User View with Ctrl+Z.[Sysname] radius scheme radius1New Radius scheme[Sysname-radius-radius1]1.2.15 radius trapSyntaxradius trap { accounting-server-down | authentication-server-down }undo radius trap { accounting-server-down | authentication-server-down }ViewSystem viewParameteraccounting-server-down: Enables sending traps when the RADIUS accountingserver gives no response.authentication-server-down: Enables sending traps when the RADIUSauthentication server gives no response.DescriptionUse the radius trap command to enable the RADIUS trap function.Use the undo radius trap command to disable the RADIUS trap function.By default, RADIUS trap is disabled.After the RADIUS trap function is enabled, the following happens. If the RADIUS serverdoes not respond to the accounting or authentication request packets from an NAS, theNAS retransmits accounting or authentication request packets to the server. When thenumber of packet transmissions from the NAS to the server reaches one half of themaximum transmission number, the system sends a trap message once; when thisnumber reaches the maximum, the system sends a trap message once again.