1 Reply Latest reply on Sep 11, 2014 9:08 AM by billingslyd

    SNMP Polling 1335 Lockup Following SolarWinds install

    billingslyd New Member

      I am currently experiencing the same problem as a previous user who's problem was deemed answered by them no longer polling snmp. I would like to get to the bottom of the issue and get some help with my scenario. Our network consists of 700+ Adtran 1224 and 1335 (POE and non POE) We recently installed SolarWinds as our Network Monitoring application.  After reviewing previous thread we have disabled Adtran polling via Solarwinds. We had approx. 18 switches lock up over a period of 4 days before disabling in Solarwinds We thought this had corrected the issue then  have had 4-8 more lock up over the past 3 days. Wondering if the snmp walk or snmp like DOS attack left its impression on the Adtran in tying up memory resources or CPU. And this just took a few days to set it over the edge and cause it to lockup. We are running the blow FW versions on the majority of these switches and see some bugs in the software release notes where an snmp walk can cause a system lockup. I'm wondering how If this theory makes sense to anyone and what cpu or memory would be a good place to look for compare free memory heap cpu etc to give me a warning that a switch is about to lockup. Seems like a memory error moreso then a cpu but I cannot get in to 1 after it locks up so cannot be sure,   Any assistance is appreciated.

      "NV1335A-17-08-02-00-E.biz"
      "NONVOL:/NV1335A-17-01-01-00-E.biz"

      a random site switch stats - Would statistic tells me the most? I would think the Total Free at the bottom

       

      #show memory heap
      Memory Heap:
        HeapFree:   78584816
        HeapSize:   96136176

      Block Managers:
        Mgr         Size        Used        Free    Max-Used    Overhead
                 (bytes)    (blocks)    (blocks)    (blocks)     (bytes)
        0              0           1           3           4         128
        1             32       23291        1789       25080      802560
        2             96        7834         966        8800      281600
        3            224        1438          11        1449       46368
        4            480        1383         933        2316       74112
        5            992         215           2         217        6944
        6           2016         103           0         103        3296
        7           4064          94           6         100        3200
        8           8160          42           3          45        1440
        9          16352          33           5          38        1216
        10         32736          11           0          11         352
        11         65504          12           0          12         384
        12        131040           2           0           2          64
        13        262112           2           0           2          64
        14        524256           0           0           0           0
        15       1048544           0           0           0           0
        16       2097120           0           0           0           0
        17       4194272           0           0           0           0
        18       8388576           0           0           0           0
        19      16777184           0           0           0           0

        Total Overhead (bytes):    1221728
        Total Used (bytes):        6101056
        Total Free (bytes):         732896

       

       

       

       

      #show processes cpu

      System load: 1sec:7.38%  1min:7.43%  5min:7.40%  Min: 0.00%  Max: 100.00%

      Context switch load: 0.17%

                                            Invoked  Exec Time    Runtime    Load %%

      Task Id    Task Name        PRI STA   (count)     (usec)     (usec)     (1sec)

      1          Idle               0 W    70846543       2003     924498      92.45

      2          Thread Pool        2 W         793        289          0       0.00

      3          PC Config          5 S    12847152       1022      49432       4.94

      4          PacketRouting     36 W     5212274         15       3010       0.30

      5          Timer-00           8 W    49871152          5       1189       0.12

      6          Nm01               3 W           0     186296          0       0.00

      7          Clock              7 W      300829         29         49       0.00

      8          FrontPanel        35 W     1982627        422       8559       0.86

      9          con0              37 W         483         11          0       0.00

      10         CF Manager         7 W      189961         24         31       0.00

      11         PCI Bridge        25 W      988712          4         67       0.01

      12         Switch            37 W     4544858         13        646       0.06

      13         Stacking           7 W      101948         19         19       0.00

      14         SwitchQ           13 W     9356001         16       1021       0.10

      15         RSTP              35 W     1224035         13       2714       0.27

      16         RouteTableTick     4 W      165421         89        124       0.01

      17         OSPF               4 W      233047         32        544       0.05

      18         IGMPTick           4 W      100844         35         35       0.00

      19         IGMP-Receiver      4 W           0    2485173          0       0.00