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Cisco Bug: CSCur21018 - Sessmgrs are in warn state and calls are being rejected

Last Modified

Dec 25, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

15.0(21)

Description (partial)

Symptom:
1. Sessmgrs are in warn state and calls are being rejected

  Frequent sessmgr 10018 error - call rejected are appearing

 2014-Oct-01+16:50:51.863 [sessmgr 10018 error] [12/0/14459 <sessmgr:57> sessmgr_func.c:44758] [software internal     system syslog] Sessmgr-57 full (35200 effective number of calls, 10352 calllines in use, 50810 free flows, 11590 free aaa_sessions, 10352 used-mem-credits, 10352 used-sess-credits, 2075476 mem-usage, 1945600 mem-limit, 0 ecs-queue-usage, 70400 ecs-queue-limit, 0 ecs-num-flows, 0 ecs-max-flows, 0 ecs-mem-limit[ecs-flow/mem-values:ignore], 0x86 limit-flags) - call rejected

2. show ssi output 

SSI output -> before
BSSGP LAYER
---------------------------------------------------------------------------
|    Size |     alloc |   dealloc |      tx |      rx |  LstCnt |    fCnt |
---------------------------------------------------------------------------
|      48 |       241 |       197 |      71 |      75 |       0 |       0 |
|      80 |         6 |         3 |       0 |       0 |       0 |       0 |
|      96 |       239 |       379 |       0 |     150 |      10 |       6 |
|     128 |        94 |        94 |       0 |       0 |       0 |       0 |
|     256 |    572209 |    572270 |      71 |     135 |       3 |      12 |
|     384 |        26 |        26 |       0 |       0 |       0 |       0 |
|     512 |        96 |        47 |       0 |       0 |       0 |       0 |
|     640 |         0 |         0 |       0 |       0 |       0 |       0 |
|    1024 |        53 |         3 |      44 |       0 |       0 |       0 |
|    2048 |       110 |        62 |       0 |       0 |       0 |       0 |
|    3072 |         1 |         0 |       0 |       0 |       0 |       0 |
|    4096 |         1 |         0 |       0 |       0 |       0 |       0 |
 
LLC LAYER
---------------------------------------------------------------------------
|    Size |     alloc |   dealloc |      tx |      rx |  LstCnt |    fCnt |
---------------------------------------------------------------------------
|      48 |       162 |       186 |      45 |      71 |       0 |       0 |
|      80 |         0 |         0 |       0 |       0 |       0 |       0 |
|      96 |       176 |        43 |     116 |       0 |      17 |       4 |
|     128 |         0 |         0 |       0 |       0 |       0 |       0 |
|     256 |       102 |        97 |      71 |      71 |       5 |       4 |
|     384 |         0 |         0 |       0 |       0 |       0 |       0 |
|     512 |         5 |         0 |       0 |       0 |       0 |       0 |
|     640 |         0 |         0 |       0 |       0 |       0 |       0 |
|    1024 |         1 |         0 |       0 |       0 |       0 |       0 |
|    2048 |         5 |         5 |       0 |       0 |       0 |       0 |
|    3072 |         1 |         0 |       0 |       0 |       0 |       0 |
 
SSI output after second try 
BSSGP LAYER
---------------------------------------------------------------------------
|    Size |     alloc |   dealloc |      tx |      rx |  LstCnt |    fCnt |
---------------------------------------------------------------------------
|      48 |       251 |       207 |      74 |      78 |       0 |       0 |
|      80 |         6 |         5 |       0 |       2 |       0 |       0 |
|      96 |       257 |       392 |       0 |     150 |      15 |       1 | <<<<<<<<<<<<<<
|     128 |        97 |        97 |       0 |       0 |       0 |       0 |
|     256 |    615153 |    615215 |      74 |     140 |       4 |      11 |<<<<<<<<<<<<<
|     384 |        27 |        27 |       0 |       0 |       0 |       0 |
|     512 |        96 |        47 |       0 |       0 |       0 |       0 |
|     640 |         0 |         0 |       0 |       0 |       0 |       0 |
|    1024 |        53 |         3 |      44 |       0 |       0 |       0 |
|    2048 |       111 |        63 |       0 |       0 |       0 |       0 |
|    3072 |         1 |         0 |       0 |       0 |       0 |       0 |
|    4096 |         1 |         0 |       0 |       0 |       0 |       0 |
 
LLC LAYER
---------------------------------------------------------------------------
|    Size |     alloc |   dealloc |      tx |      rx |  LstCnt |    fCnt |
---------------------------------------------------------------------------
|      48 |       168 |       193 |      47 |      74 |       0 |       0 |
|      80 |         2 |         0 |       2 |       0 |       0 |       0 |
|      96 |       185 |        53 |     116 |       0 |      16 |       5 |
|     128 |         0 |         0 |       0 |       0 |       0 |       0 |
|     256 |       108 |       104 |      74 |      74 |       4 |       5 |
|     384 |         0 |         0 |       0 |       0 |       0 |       0 |
|     512 |         5 |         0 |       0 |       0 |       0 |       0 |
|     640 |         0 |         0 |       0 |       0 |       0 |       0 |
|    1024 |         1 |         0 |       0 |       0 |       0 |       0 |
|    2048 |         6 |         6 |       0 |       0 |       0 |       0 |
|    3072 |         1 |         0 |       0 |       0 |       0 |       0 |

Conditions:
SGSN running 15.0 (56336)
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