05-18-2016 11:06 PM
We have an ASR9006 in one of the projects which is working as BNG and have around 30k subscriber.
Recently there are some problem which session of some users will not complete and so they don`t have connection.
Currently the main problem is “Duplicate IPv4 Address” and as in our scenario AAA has the responsibility of IP pool to assign the ip address to the user and as AAA will see some online users as offline so it will release the ip and will assign to another user while existing user has the same IP and duplicate will happen.
It seems there is a bug which prevent BRAS to send right accounting information to AAA.
Solved! Go to Solution.
05-27-2016 09:40 AM
also check show radius to see if there were accounting messages dropped.
possibly add a retry if the accounting server is busy
maybe it is a nice idea in the radius server to verify with a coa query to see if there is an account online with that address already. but that is optional of course.
regards
xander
05-18-2016 11:18 PM
05-19-2016 06:14 AM
are you running the XR release 5.3.3 with the latest Service Pack or with all the BNG related SMUs installed?
If periodic accounting is configured but the BNG doesn't send the messages, we should look into that more closely. It would be the best if you would open a TAC SR.
regards,
Aleksandar
05-27-2016 09:40 AM
also check show radius to see if there were accounting messages dropped.
possibly add a retry if the accounting server is busy
maybe it is a nice idea in the radius server to verify with a coa query to see if there is an account online with that address already. but that is optional of course.
regards
xander
06-13-2016 11:49 PM
06-14-2016 05:30 AM
looking at the log I dont see any reason for the dupe addr handout, but I do see a lot of invalid/incomplete records.
the dupe addr comes from teh fact of lost accounting stop messages so best to verify the show radius stat for that.
meanwhile if you are not on 533 with latest sp, that might be a good starting point to see if the rogue records disappear and the dupe attributes they sometimes contain it looks.
if that continues to exist I think we'll need a tac case to have a ddts filed and have this investigated from sw standpoint.
regards!
xander
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide