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Cisco Bug: CSCup23476 - SMC swithover failure - card unresponsive and crashes

Last Modified

Feb 27, 2017

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

16.1(0)

Description (partial)

Symptom:
From the problem description
=======================
1. Performed Planned SMC switchover from card 8 to card 9. 

2. Observed that the system was unresponsive and couldn't login for long time. 

3. There were lots of drvctrl warnings and hat errors(refer syslogs in attachment for details). 

4. Finally there was an rmctrl and cspctrl crash (refer crash.txt in attachment) and this triggered Unplanned SMC switchover back to card 9. 

5. Around 2 Lac calls were lost due to ims-authorization-failed even when failure handling was continue.

Re attempted the same test and again got back into this issue. Refer attached defect.zip file for SSD, syslogs, and minicores. Full core was not generated. Marking this as QA Blocking as SMC switchover related cases are blocked.

Conditions:
CLAB has a combo setup comprising of SGW/PGW/GGSN. Had started following callmodel:
3G Call Model: Throughput ~ 5500 Mbps, Total Sessions ~ 0.7 Million, Makebreak Rate ~ 500 CEPS, Overall PDP Updates ~ 1025 Updates/second
4G Call Model: Throughput ~ 1000 Mbps, Total Session ~ 0.1 Million, Make Break rate ~ 150 CEPS, Overall Handoff rate ~ 700 Handoffs/second, Active-Idle-Active UE transitions ~ 1K/second
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