11-17-2022 07:16 PM - edited 11-17-2022 07:17 PM
We've had a power outage on one of our site impacting a 4 stack of Cat9300 switches. One switch died completely and needs an RMA. The other 3 switches are powered on and stacked correctly.
The weirdest thing is that the patch paneling for that switch no longer works. All the interfaces are down/down but if we bypass the cabling and plug a laptop directly into the switch the interface comes up.
Has anyone ever had any issues with patch paneling following a power outage? I've never heard of something like that but who knows these days.
11-17-2022 07:28 PM
Post the complete output to the command "sh post".
11-17-2022 07:32 PM
Stored system POST messages:
Switch 1
---------
POST: MBIST Tests : Begin
POST: MBIST Tests : End, Status Passed
POST: CRYPTO Tests : Begin
POST: CRYPTO Tests : End, Status Passed
POST: PHY Loopback: loopback Test : Begin
POST: PHY Loopback: loopback Test : End, Status Passed
POST: SIF Tests : Begin
POST: SIF Tests : End, Status Passed
POST: Inline Power Controller Tests : Begin
POST: Inline Power Controller Tests : End, Status Passed
POST: Thermal, Temperature Tests : Begin
POST: Thermal, Temperature Tests : End, Status Passed
POST: Thermal, Fan Tests : Begin
POST: Thermal, Fan Tests : End, Status Passed
Switch 2
---------
POST: MBIST Tests : Begin
POST: MBIST Tests : End, Status Passed
POST: CRYPTO Tests : Begin
POST: CRYPTO Tests : End, Status Passed
POST: PHY Loopback: loopback Test : Begin
POST: PHY Loopback: loopback Test : End, Status Passed
POST: SIF Tests : Begin
POST: SIF Tests : End, Status Passed
POST: Inline Power Controller Tests : Begin
POST: Inline Power Controller Tests : End, Status Passed
POST: Thermal, Temperature Tests : Begin
POST: Thermal, Temperature Tests : End, Status Passed
POST: Thermal, Fan Tests : Begin
POST: Thermal, Fan Tests : End, Status Passed
Switch 4
---------
POST: MBIST Tests : Begin
POST: MBIST Tests : End, Status Passed
POST: CRYPTO Tests : Begin
POST: CRYPTO Tests : End, Status Passed
POST: PHY Loopback: loopback Test : Begin
POST: PHY Loopback: loopback Test : End, Status Passed
POST: SIF Tests : Begin
POST: SIF Tests : End, Status Passed
POST: Inline Power Controller Tests : Begin
POST: Inline Power Controller Tests : End, Status Passed
POST: Thermal, Temperature Tests : Begin
POST: Thermal, Temperature Tests : End, Status Passed
POST: Thermal, Fan Tests : Begin
POST: Thermal, Fan Tests : End, Status Passed
Switch 3 is missing as it's being RMAed
11-17-2022 08:00 PM
"sh post" output is fine.
Get a reputable cabler to test the cable runs.
11-17-2022 08:10 PM
Yes, patch panels can go bad. They have PCBs in them that can melt if the cabling got hot enough. You might also see scorched spots in the RJ45s. Run a basic tester on your runs to make sure all pairs pass before reusing it.
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