In a ​Subscriber Management environment, the following message may sometimes be seen: "Dec 10 23:45:55  router-re0 bbe=smgd[26875]: %DAEMON-3: dprof_process_request: Resource usage of the FPC exceeded threshold."

This article explains the meaning of this message.

 

The message indicates that a dynamic profile could not be created for the subscriber and therefore, the subscriber cannot log in. This is due to exceeding the usage of Flexible PIC Concentrator (FPC) resources such as memory for NextHop, Heap, or Filters.

 

To check the current usage of FPC resources, use the following commands:

• show system resource-monitor fpc slot <x> for a specific FPC

• show system resource-monitor summary for all FPCs

For example:

labroot@router-re0> show system resource-monitor fpc slot 9

FPC Resource Usage Summary

Free Heap Mem Watermark         : 20  %
Free NH Mem Watermark           : 20  %
Free Filter Mem Watermark       : 20  %

* - Watermark reached 

Slot #         % Heap Free
9             61

PFE #    % ENCAP mem Free    % NH mem Free    % FW mem Free
0           NA               77                  99
1           NA               20 *                41 ---> Free next-hop memory is 20%.

 

labroot@router-re0>  show system resource-monitor summary

Resource Usage Summary

Throttle                  : Enabled
Heap Mem Threshold        : 70  %
IFL Counter Threshold     : 95  %
Filter Counter Threshold  : 100 %
Expansion Threshold       : 95  %
MFS threshold             : 70  %        Used : 10

Slot # 0
Client allowed   : Yes
Service allowed  : Yes

Client denied    : 0
Service denied   : 0
Heap memory used : 332781712       In % : 17

Filter memory        IFL memory        Expansion memory
PFE #       used  |   %         used  |   %          used  |   %
0   17801200     44       298336      0             0      0
1   17758944     44       298496      0             0      0

Slot # 3
Client allowed   : Yes
Service allowed  : Yes

Client denied    : 0
Service denied   : 0
Heap memory used : 646251648       In % : 34

Filter memory        IFL memory        Expansion memory
PFE #       used  |   %         used  |   %          used  |   %
0   20726896     52      1567488      4             0      0
1   20110736     50      1269024      3             0      0

Slot # 5
Client allowed   : Yes
Service allowed  : Yes

Client denied    : 0
Service denied   : 0
Heap memory used : 332436488       In % : 17

Filter memory        IFL memory        Expansion memory
PFE #       used  |   %         used  |   %          used  |   %
0   17758896     44       298816      0             0      0
1   17758896     44       298496      0             0      0

Slot # 7
Client allowed   : Yes
Service allowed  : Yes

Client denied    : 0
Service denied   : 0
Heap memory used : 332105848       In % : 17

Filter memory        IFL memory        Expansion memory
PFE #       used  |   %         used  |   %          used  |   %
0   17758896     44       298816      0             0      0
1   17758896     44       298496      0             0      0

Slot # 9
Client allowed   : No   >> New subscribers not allowed anymore due to resource usage
Service allowed  : No   >> New services not allowed anymore due to resource usage

Client denied    : 240229
Service denied   : 124439
Heap memory used : 722241912       In % : 38

Filter memory        IFL memory        Expansion memory
PFE #       used  |   %         used  |   %          used  |   %
0   20849392     52      1573664      4             0      0
1   20981936     52      1635584      4      63753496     95 *    >> Expansion memory at 95% usage

 

If you suspect that there is no reason for the resource limit in your environment to be exceeded, open a Technical Service Request for further investigations.

To determine the cause for this message and to resolve any issue found, refer to the steps in KB31509 - Syslog message: dprof_process_request: Resource usage of the FPC exceeded threshold.