Dial up error and freeraius is down

1 Apr 2011

      Hi Friends,

I met a problem with FreeRADIUS2.1.9 (Mysql+centos, about 500 pppoe users)as
below:

In general, I found some users couldn't dial to radius and log information
as below

-          Fri Apr  1 19:22:09 2011 : Error: Discarding duplicate request
from client mpth12 port 40039 - ID: 129 due to unfinished request 10524

-          Fri Apr  1 19:22:10 2011 : Error: Discarding conflicting packet
from client mpth12 port 40039 - ID: 129 due to recent request 10524.

-

I have two guesses:

-          Brand width is insufficient from pppoe server to radius server;

-          Server running radius of capability is insufficient.

Could you help me?

Thank you very much.

Robin