Cisco C3750 spontaneous reboot

[rmiller]

My core C3750 switch has rebooted for no reason at about the same time both yesterday and today. This is what sho version gives:

Gateway uptime is 17 minutes
System returned to ROM by power-on
System restarted at 17:11:39 AZ Tue Nov 6 2018

Failing power supply maybe?

[Leo Laohoo]

Power issue.
If the outage time is the same as before, past 5pm, then some circuit breaker trips.

[rmiller]

Do you mean a breaker in the switch?

[Leo Laohoo]

Nope. A breaker that powers the switch.

[rmiller]

So probably the UPS it’s on? It hasn’t been beeping that I’m aware of.

[Reza Sharifi]

If the switch is connected to a UPS, make sure the UPS is charged.

HTH

[Leo Laohoo]

No idea.
Otherwise, go to the place where the switch is (before 5pm) and observe what happens in the next 20 minutes.

[rmiller]

So why would a UPS trip a breaker at the same time daily? Seems odd?

[rmiller]

---

@Leo Laohoo wrote:
No idea.
Otherwise, go to the place where the switch is (before 5pm) and observe what happens in the next 20 minutes.

---

Did this today @ 5:16pm. Nothing beeped, no indication of a problem with the UPS. The switch just went dark and rebooted. While it was dark I moved the cord to another UPS. We'll see what happens tomorrow.

[Leo Laohoo]

Post the complete output to the following commands:
1. sh version; and
2. dir

[rmiller]

Gateway#sh ver
Cisco IOS Software, C3750 Software (C3750-ADVIPSERVICESK9-M), Version 12.2(25)SEE2, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 28-Jul-06 12:55 by yenanh
Image text-base: 0x00003000, data-base: 0x01256754
ROM: Bootstrap program is C3750 boot loader
BOOTLDR: C3750 Boot Loader (C3750-HBOOT-M) Version 12.2(25r)SEA, RELEASE SOFTWARE (fc)
Gateway uptime is 49 minutes
System returned to ROM by power-on
System restarted at 17:18:12 AZ Wed Nov 7 2018
System image file is "flash:c3750-advipservicesk9-mz.122-25.SEE2.bin"
This product contains cryptographic features and is subject to United States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at: http://www.cisco.com/wwl/export/crypto/tool/stqrg.html|
If you require further assistance please contact us by sending email to export@cisco.com.
cisco WS-C3750-48P (PowerPC405) processor (revision G0) with 118784K/12280K bytes of memory.
Processor board ID CAT0914X0AJ
Last reset from power-on
19 Virtual Ethernet interfaces
48 FastEthernet interfaces
4 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.
512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address : xx:xx:xx:xx:xx:xx
Motherboard assembly number : 73-9675-08
Power supply part number : 341-0029-03
Motherboard serial number : CAT09140NYX
Power supply serial number : DTH09105F77
Model revision number : G0
Motherboard revision number : A0
Model number : WS-C3750-48PS-S
System serial number : CAT0914X0AJ
SFP Module assembly part number : 73-7757-02
SFP Module revision Number : A0
SFP Module serial number : CAT09131G1Y
Top Assembly Part Number : 800-25858-02
Top Assembly Revision Number : A0
Version ID : V04
CLEI Code Number : COM1W00ARA
Hardware Board Revision Number : 0x01

Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 52 WS-C3750-48P 12.2(25)SEE2 C3750-ADVIPSERVICESK
Configuration register is 0xF
Gateway#dir
Directory of flash:/

2 -rwx 1496 Feb 28 1993 17:01:15 -07:00 vlan.dat
3 drwx 128 Feb 28 1993 17:00:04 -07:00 crashinfo
92 -rwx 1048 Nov 7 2018 17:42:19 -07:00 multiple-fs
5 drwx 192 Feb 28 1993 17:12:22 -07:00 c3750-i9-mz.122-20.SE4
91 -rwx 8172194 Mar 7 1993 21:19:10 -07:00 c3750-advipservicesk9-mz.122-25.SEE2.bin
93 -rwx 4928 Nov 7 2018 17:42:19 -07:00 private-config.text
95 drwx 0 Feb 28 1993 17:01:17 -07:00 online_diag
96 -rwx 18696 Nov 7 2018 17:42:17 -07:00 config.text

15998976 bytes total (44032 bytes free)