[c-nsp] (no subject)

[zaid]

Hi
any idea i got this log on my cisco ASR1002 IOS XE Version: 03.07.02.S, I used this box for PPPOE session termination , once the session reached 350 user the alarm raised and couldn't have more sessions 


%SSSMGR-3-MEMORY_LOW: Memory low (29401 times), disconnecting session


#sh memory statistics
                Head    Total(b)     Used(b)     Free(b)   Lowest(b)  Largest(b)
Processor   300A8008   1729300220   312092628   1417207592   1416390148   1416371280
 lsmpi_io   972E01D0     6295088     6294120         968         968         968

Z#sh aaa memory
  Allocator-Name                  In-use/Allocated            Count
  ----------------------------------------------------------------------------
  AAA Acct Rec ch           :      25788/40376      ( 63%) [    307] Chunk
  AAA Acct Req ch           :          0/65656      (  0%) [      0] Chunk
  AAA Acct AVLnod           :       8596/13080      ( 65%) [    307] Chunk
  AAA AttrL Hdr             :      36504/65756      ( 55%) [   1521] Chunk
  AAA AttrL Sub             :     522512/656048     ( 79%) [   1921] Chunk
  AAA DB Elt Chun           :      22176/65756      ( 33%) [    308] Chunk
  AAA Acct DB chu           :      57716/80376      ( 71%) [    307] Chunk
  AAA Unique Id Hash Table  :       4096/4148       ( 98%) [      1]
  AAA chunk                 :          0/16760      (  0%) [      0] Chunk
  AAA Tiny Chunk            :          0/65756      (  0%) [      0] Chunk
  AAA Large Chunk           :      21096/65756      ( 32%) [    293] Chunk
  AAA Huge Chunk            :          0/65756      (  0%) [      0] Chunk
  AAA chunk                 :          0/16760      (  0%) [      0] Chunk
  AAA Interface Struct      :     107912/123928     ( 87%) [    308]
  AAA General DB            :     211424/227388     ( 92%) [    307]
  AAA String Malloc         :        168/220        ( 76%) [      1]
  RADIUS Resp. Wa           :          0/8604       (  0%) [      0] Chunk
  RADIUS DB Chunk           :      10620/17384      ( 61%) [    295] Chunk

  Total allocated: 1.525 Mb, 1562 Kb, 1599508 bytes


AAA Low Memory Statistics:
__________________________
  Authentication low-memory threshold      : 3%
  Accounting low-memory threshold          : 2%


  AAA Unique ID Failure                    : 0
  Local server  Packet dropped             : 0
  CoA  Packet dropped                      : 0
  PoD  Packet dropped                      : 0

any idea about the root cause ?

BR
Zaid