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CSCvj49423 - %SIF_MGR-1-FAULTY_CABLE:Switch 1 R0/0

John LaFrance
Beginner
Beginner

Cisco 3850-48F-L, Denali IOS 16.3.5b, uptime is 9 weeks, 6 days.

 

Seeing repeating log errors:

Sep 4 12:00:08: %SIF_MGR-1-FAULTY_CABLE:Switch 1 R0/0: sif_mgr: High hardware interrupt seen on switch 1
Sep 4 12:01:08: %SIF_MGR-1-FAULTY_CABLE:Switch 1 R0/0: sif_mgr: High hardware interrupt seen on switch 1
Sep 4 12:01:23: %SIF_MGR-1-FAULTY_CABLE:Switch 2 R0/0: sif_mgr: High hardware interrupt seen on switch 2
Sep 4 12:02:08: %SIF_MGR-1-FAULTY_CABLE:Switch 1 R0/0: sif_mgr: High hardware interrupt seen on switch 1

19 REPLIES 19

fdharmawan
Participant
Participant

Hi John,

 

Today I found the same log again. I replaced the cable and so far the switch works normally. Will monitor the condition for the next few days.

 

Do you have any spare stack cable? If so, try to replace the cable if the log still persists.

 

Cheers.

takhzar
Cisco Employee
Cisco Employee

Hi, 

Do we have any updates regarding the problem? I am experiencing the same problem with the firmware Version 16.3.6.

Sep 27 10:22:33.408 UTC: %SIF_MGR-1-FAULTY_CABLE:Switch 2 R0/0: sif_mgr: High hardware interrupt seen on switch 2
Sep 27 10:22:39.314 UTC: %SIF_MGR-1-FAULTY_CABLE:Switch 1 R0/0: sif_mgr: High hardware interrupt seen on switch 1
Sep 27 10:22:46.841 UTC: %SIF_MGR-1-FAULTY_CABLE:Switch 3 R0/0: sif_mgr: High hardware interrupt seen on switch 3
Sep 27 10:22:49.790 UTC: %SIF_MGR-1-FAULTY_CABLE:Switch 4 R0/0: sif_mgr: High hardware interrupt seen on switch 4

Cheers.

Leo Laohoo
VIP Community Legend VIP Community Legend
VIP Community Legend

@takhzar wrote:

Do we have any updates regarding the problem? I am experiencing the same problem with the firmware Version 16.3.6.


Upgrade to the latest final 16.3.X release, 16.3.11 (20 August 2020) or the final 16.6.10 (25 August 2021).

@takhzar no change on this issue; I have not tried swapping out any suspect stack cables, and this switch is still operational on IOS 16.3.7 after 1 year, 7 weeks; no user impact, CPU averages 12-15% and no incrementing "changes to link" counters either.

AlexMarques
Beginner
Beginner

Hi Community

 

I had the similar problem with a C9300 in the stack and it occurred on the 4th stackswitch, on the last one. (IOS 17.3.4)

 

The solution for my problem was, with the command "sh switch stack-ports detail" I could see some CRC errors. So I replaced the stack module. Then I reset the counters and watched the whole thing. Since then I have no more problems.

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