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ERS 8000: Observed Continuous Sysop Congestion Alert

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TitleERS 8000: Observed Continuous Sysop Congestion Alert
Symptoms

Observed continuous SysOp congestion message after upgraded one of the IST peer. 

CPU5 [01/29/18 03:43:51] SW INFO SysOp recovered from the possible congestion state

CPU5 [01/29/18 03:43:51] SW INFO SysOp entering possible congestion state - dropCounts = 12, qDepths = 0, cppInRate = 2746 pps CpuUtil 14

CPU5 [01/28/18 19:06:09] SW INFO SysOp recovered from the possible congestion state

CPU5 [01/28/18 19:06:08] SW INFO ******************************************************************************************************************

CPU5 [01/28/18 19:06:08] SW INFO MacAddrLearn                :    1910654 -         88 -         88

CPU5 [01/28/18 19:06:08] SW INFO MacAddrModify               :   21236100 -          0 -          0

CPU5 [01/28/18 19:06:08] SW INFO MacAddrLearn/ModifyAttempts :   56824941 -        135 -        135

CPU5 [01/28/18 19:06:08] SW INFO ------------------------------------------------------------------------------------------------------------------

CPU5 [01/28/18 19:06:08] SW INFO MAC LEARNING COUNTERS       : Absolute   -   Diff     -  Diffs/ElapsedSec

CPU5 [01/28/18 19:06:08] SW INFO ------------------------------------------------------------------------------------------------------------------

CPU5 [01/28/18 19:06:08] SW INFO Please Note that the Absolute counters are preserved across HA failovers albeit with small variances!

CPU5 [01/28/18 19:06:08] SW INFO ------------------------------------------------------------------------------------------------------------------

CPU5 [01/28/18 19:06:08] SW INFO IPv4_OTHER_MCAST      :          0 -          0 -          0 -          0 -          1 -          0 -          1

CPU5 [01/28/18 19:06:08] SW INFO IPv4_OTHER_UNICAST    :          0 -          0 -          0 -          0 -          0 -          0 -          0

CPU5 [01/28/18 19:06:08] SW INFO RIP_UDP_PKT           :          0 -          0 -          0 -          0 -          0 -          0 -          0

*********************************************

*********************************************

CPU5 [01/28/18 19:06:08] SW INFO RxQ#5:            0 - (         0 ,          0)

CPU5 [01/28/18 19:06:08] SW INFO RxQ#4:    545418537 - (        10 ,         10)

CPU5 [01/28/18 19:06:08] SW INFO RxQ#3:    518578628 - (       796 ,        796)

CPU5 [01/28/18 19:06:08] SW INFO RxQ#2:    131387162 - (       459 ,        459)

CPU5 [01/28/18 19:06:08] SW INFO RxQ#1:    611536391 - (       139 ,        139)

CPU5 [01/28/18 19:06:08] SW INFO RxQ#0:      1488135 - (         0 ,          0)

CPU5 [01/28/18 19:06:08] SW INFO ------------------------------------------------

CPU5 [01/28/18 19:06:08] SW INFO RxQid:    packets   - (    diff    ,diff-in-sec)

CPU5 [01/28/18 19:06:08] SW INFO ******************************************************************************************************************

CPU5 [01/28/18 19:06:08] HW INFO HIGH CPU condition detected at 01/28/18 19:06:08. Spy Task Trace Data has been collected for this event

CPU5 [01/28/18 19:06:08] COP-SW ERROR

 ERROR: Creating file [/pcmcia/spyTaskTraceFile.txt] errno 3670034
 

 

 Core A :

 

Core B :

 

Environment
Ethernet Routing Switch 8000 running software 7.2.26
Cause

Issue is due to improper implementation of recommended procedures.

Resolution

Recommended to upgrade and maintain the same software version on IST peers.

Additional notes

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