H3C WA2612-AGN Web-Based Configuration Manual page 221

Item
Realtime Accounting
Interval
Realtime Accounting
Attempts
Unit for Data Flows
Unit for Packets
Security Policy Server
RADIUS Packet Source IP
RADIUS Packet Backup
Source IP
Buffer stop-accounting
packets
Stop-Accounting
Attempts
Description
Set the interval for sending real-time accounting information. The interval must be a
multiple of 3.
To implement real-time accounting, the device must send real-time accounting
packets to the accounting server for online users periodically.
Different real-time accounting intervals impose different performance requirements
on the NAS and the RADIUS server. A shorter interval helps achieve higher
accounting precision but requires higher performance. Use a longer interval when
a large number of users (1000 or more) exist. For more information about the
recommended real-time accounting intervals, see
Set the maximum number of attempts for sending a real-time accounting request.
Specify the unit for data flows sent to the RADIUS server, which can be byte,
kilo-byte, mega-byte, or giga-byte.
Specify the unit for data packets sent to the RADIUS server, which can be:
•
One-packet.
•
Kilo-packet.
•
Mega-packet.
•
Giga-packet.
Specify the IP address of the security policy server.
Specify the source IP address for the device to use in RADIUS packets sent to the
RADIUS server.
H3C recommends you to use a loopback interface address instead of a physical
interface address as the source IP address, because if the physical interface is
down, the response packets from the server cannot reach the device.
Specify the backup source IP address for the device to use in RADIUS packets sent
to the RADIUS server.
In a stateful failover environment, the backup source IP address must be the source
IP address for the remote device to use in RADIUS packets sent to the RADIUS
server.
Configuring the backup source IP address in a stateful failover environment makes
sure that the backup server can receive the RADIUS packets sent from the RADIUS
server when the master device fails.
IMPORTANT:
Support for this configuration item depends on your device model.
Enable or disable buffering of stop-accounting requests for which no responses are
received.
Set the maximum number of stop-accounting attempts.
The maximum number of stop-accounting attempts, together with some other
parameters, controls how the NAS deals with stop-accounting request packets.
Suppose that the RADIUS server response timeout period is three seconds, the
maximum number of transmission attempts is five, and the maximum number of
stop-accounting attempts is 20. For each stop-accounting request, if the device
receives no response within three seconds, it retransmits the request. If it receives no
responses after retransmitting the request five times, it considers the stop-accounting
attempt a failure, buffers the request, and makes another stop-accounting attempt.
If 20 consecutive attempts fail, the device discards the request.
208
"Configuration guidelines."