Operation Manual – AAA RADIUS HWTACACSH3C S5500-EI Series Ethernet SwitchesChapter 1 AAA/RADIUS/HWTACACSConfiguration1-32Note:z The product of the maximum number of retransmission attempts of RADIUSpackets and the RADIUS server response timeout period cannot be greater than 75.This product is also the upper limit of the timeout time of different access modules.z For an access module, the product of the RADIUS server response timeout periodand the maximum number of retransmission attempts must be smaller than thetimeout time.z To configure the maximum number of retransmission attempts of RADIUS packets,refer to the command retry in the command manual.1.4.10 Configuring RADIUS Accounting-onWith the accounting-on function enabled, a device sends, whenever it reboots,accounting-on packets to the RADIUS server, requesting the server to force its usersoffline.Once configured, the accounting-on function is executed as soon as the device restartsand completes its configuration. In case that the majority of the RADIUS servers (adevice can be configured with 16 schemes at most) fail to respond to the accounting-onpackets, the number of accounting-on packet retransmission attempts is too big, or theaccounting-on packet retransmission interval is too long, the device will not handle AAAservices until all these packets are retransmitted and all RADIUS servers haveresponded to accounting-on packets.Follow these steps to configure accounting-on function of a RADIUS server:To do… Use the command… RemarksEnter system view system-view —Create RADIUS schemeand enter its viewradius schemeradius-scheme-nameRequiredNot defined by defaultEnable accounting-on accounting-on enable RequiredDisabled by defaultSet the number ofaccounting-on packetretransmission attemptsaccounting-on enablesend send-timesOptional5 times by defaultSet the retransmissioninterval of accounting-onpacketsaccounting-on enableinterval secondsOptional3 seconds by default