3com 5500-ei pwr Guia De Referência

 

1-30 

[ send times | interval interval ]  

{ enable | send | interval } 

RADIUS scheme view 

: Maximum number of attempts to send an Accounting-On message, ranging from 1 to 256 and 

defaulting to 15. If the maximum number has been reached but the switch still receives no response 
from the CAMS, the switch stops sending Accounting-On messages. 

: Interval to send Accounting-On messages (in seconds), ranging from 1 to 30 and defaulting to 

3. 

Use the accounting-on enable command to enable the user re-authentication at restart function. 

Use the undo accounting-on enable command to disable the user re-authentication at restart 
function and restore the default interval and maximum number of attempts to send Accounting-On 
messages. 

Use the undo accounting-on send command to restore the default maximum number of attempts to 
send Accounting-On messages. 

Use the undo accounting-on interval command to restore the default interval to send Accounting-On 
messages. 

By default, the user re-authentication at restart function is disabled. 

The purpose of this function is to solve this problem: users cannot re-log into the switch after the switch 
restarts because they are regarded as already online. After this function is enabled, every time the 
switch restarts, it sends an Accounting-On message to the RADIUS server to tell the server that it has 
restarted and ask the server to log out its users. The following gives the operations after the switch 
restarts: 

1)  The switch generates an Accounting-On message, which mainly contains the following information: 

NAS-ID, NAS-IP-address (source IP address), and session ID. You can configure the 
NAS-IP-address argument manually by using the nas-ip command. When configuring the 
NAS-IP-address argument, be sure to specify an appropriate valid IP address. If you do not 
configure the NAS-IP-address argument, the switch automatically uses the IP address of a VLAN 
interface as the NAS-IP-address. 

2)  The switch sends the Accounting-On message to the CAMS at regular intervals. 
3)  Once the CAMS receives the Accounting-On message, it sends a response to the switch. At the 

same time it finds and deletes the original online information of the users who were accessing the 
network through the switch before the restart according to the information (NAS-ID,