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VDX set to faulty due to parity errors

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TitleVDX set to faulty due to parity errors
Symptoms
  • Switch set to faulty due to parity errors
    2018/09/07-16:23:16, [EM-1034], 15412, SW/0 | Active, ERROR, sw0, Switch is set to faulty, rc=20015. 
    2018/09/07-16:23:19, [FW-1424], 15415, SW/0 | Active, WARNING, sw0, Switch status changed from HEALTHY to DOWN.
  •  TXQ SRAM errors present in the errdumpall logs
    2018/09/07-16:23:07:643207, [CBR2-5651], 0, SW/0 | Active, ERROR, sw0, CHIP0: Interrupt: Txq Txq Int3. top: 1st 0x0 sts 0x0 blk: 1st 0x100000 sts 0x3c0000 mask 0x3ffffff info 0x0 (int_grp=0x3 NONE=0x0), OID:0x43008080, cbr2_blk_err.c, line
    2018/09/07-16:23:07:643287, [CBR2-5651], 0, SW/0 | Active, ERROR, sw0, CHIP0: Interrupt: Txq Txq Int3. top: 1st 0x0 sts 0x2 blk: 1st 0x100000 sts 0x3c0000 mask 0x3ffffff info 0x0 (int_grp=0x3 NONE=0x0), OID:0x43008080, cbr2_blk_err.c, line
    2018/09/07-16:23:07:644289, [CBR2-5651], 0, SW/0 | Active, ERROR, sw0, CHIP0: Interrupt: Txq Txq Int3. top: 1st 0x0 sts 0x0 blk: 1st 0x300000 sts 0x3c0000 mask 0x3ffffff info 0x0 (int_grp=0x3 NONE=0x0), OID:0x43008080, cbr2_blk_err.c, line
    2018/09/07-16:23:07:644341, [CBR2-5651], 0, SW/0 | Active, ERROR, sw0, CHIP0: Interrupt: Txq Txq Int3. top: 1st 0x0 sts 0x2 blk: 1st 0x300000 sts 0x3c0000 mask 0x3ffffff info 0x0 (int_grp=0x3 NONE=0x0), OID:0x43008080, cbr2_blk_err.c, line
  • Switch unexpectedly went offline in the VCS
Environment
  • VDX Series
  • Network OS
Cause
Engineering advise that these parity errors are considered as critical by the switch and once the threshold is crossed, the switch will transition into a faulty state.
Resolution
  • Reload the switch to restore the switch back into the VCS fabric
  • Upgrade the switch to 6.0.2g, 7.0.2, 7.1.0b, 7.2.0a, 7.3.0, or higher.
  • RMA the switch if the error/issue recurs after the upgrade.
Additional notes

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