12-04-2013 06:15 PM - edited 03-07-2019 04:56 PM
My cisco cat 2960-S keeps on rebooting.
can anyone help how to troubleshoot/ or what is the possible cause of this?
Thanks
12-04-2013 06:21 PM
Post the output to the following commands:
1. sh version; and
2. sh post
12-04-2013 09:30 PM
Hi Leo,
and I think its config is change because I cant connect to its redundant sw. But Im sure I did save the config. Is it Malfunctioning?
Its been 7+ weeks since the sw is on prod.
FYI this SW is in remote Site ..Far away Site
ECISW001#sh ver
Cisco IOS Software, C2960S Software (C2960S-UNIVERSALK9-M), Version 12.2(55)SE7, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Mon 28-Jan-13 10:28 by prod_rel_team
Image text-base: 0x00003000, data-base: 0x01B00000
ROM: Bootstrap program is Alpha board boot loader
BOOTLDR: C2960S Boot Loader (C2960S-HBOOT-M) Version 12.2(55r)SE, RELEASE SOFTWARE (fc1)
ECISW001 uptime is 1 day, 3 minutes
System returned to ROM by power-on
System image file is "flash:/c2960s-universalk9-mz.122-55.SE7/c2960s-universalk9-mz.122-55.SE7.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
cisco WS-C2960S-24TS-L (PowerPC) processor (revision H0) with 131072K bytes of memory.
Processor board ID FOC1720W0XN
Last reset from power-on
2 Virtual Ethernet interfaces
1 FastEthernet interface
28 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.
512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address : D0:C7:89:DA:30:80
Motherboard assembly number : 73-11910-09
Power supply part number : 341-0328-02
Motherboard serial number : FOC17200AM7
Power supply serial number : DCA1714M207
Model revision number : H0
Motherboard revision number : A0
Model number : WS-C2960S-24TS-L
Daughterboard assembly number : 73-11933-04
Daughterboard serial number : FOC17192D52
System serial number : FOC1720W0XN
Top Assembly Part Number : 800-30954-04
Top Assembly Revision Number : A0
Version ID : V04
CLEI Code Number : COMGG00ARD
Daughterboard revision number : A0
Hardware Board Revision Number : 0x01
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 28 WS-C2960S-24TS-L 12.2(55)SE7 C2960S-UNIVERSALK9-M
Configuration register is 0xF
ECISW001#sh post
Stored system POST messages:
Switch 1
---------
POST: MA BIST : Begin
FC 1 MBIST Test Passed.
DP Sg1 MBIST Test Passed.
DP Xg1 MBIST Test Passed.
NI 1 MBIST Test Passed.
FC 0 MBIST Test Passed.
DP Sg0 MBIST Test Passed.
DP Xg0 MBIST Test Passed.
NI 0 MBIST Test Passed.
UPB MBIST Test Passed.
POST: MA BIST : End, Status Passed
POST: TCAM BIST : Begin
POST: TCAM BIST : End, Status Passed
POST: Thermal, Fan Tests : Begin
POST: Thermal, Fan Tests : End, Status Passed
POST: PortASIC Stack Port Loopback Tests : Begin
POST: PortASIC Stack Port Loopback Tests : End, Status Passed
POST: PortASIC Port Loopback Tests : Begin
POST: PortASIC Port Loopback Tests : End, Status Passed
POST: EMAC Loopback Tests : Begin
POST: EMAC Loopback Tests : End, Status Passed
ECISW001#
12-04-2013 09:32 PM
another thing the config change is on the trunk port to another sw (specifically from that port only)..it change from "sw tr allowed vlan 888" to no config.
12-05-2013 03:26 AM
The output to the command "sh version" shows the switch was powered on.
Have you checked that the power source is stable?
Sent from Cisco Technical Support Nintendo App
12-05-2013 03:35 AM
Still checking on that.
I used "sh logging onboard summary" and saw that it had been rebooting 39 times with reset reason 0x0. Fyi it has no ntp server so the timestamp is same. Also it has no prob with env temp
What do you think?
12-05-2013 05:23 AM
Run a "show tech" thru the output interpreter and see if anything pops up . That is supposed to be a fairly stable OS version .
12-05-2013 06:37 AM
What should i expect to see in sh tech to know if it is ok?
12-05-2013 08:57 AM
It will list out any known issues or possibly bugs with the code if it sees any .
08-15-2022 10:40 PM
Hello, what we should investigate further more information about this issue?
08-15-2022 11:37 PM
Hello,
this post is 9 years old. Are you having the exact same problem, with the same switch ? Can you post the relevant output (sh ver/sh post) ?
08-16-2022 12:12 AM
This is a bug in the model.
https://quickview.cloudapps.cisco.com/quickview/bug/CSCus47446
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