04-22-2006 02:46 AM - edited 03-03-2019 12:28 PM
Hi All,
I noticed on of my switches on the Network is restarting periodically each 7 hours.
I Have checked the power & made sure that every thing is worked fine, this issue puzzled me for a lot of time,
please find bellow the output of (sh logg) command:-
Log Buffer (4096 bytes):
0Log Buffer (4096 bytes):
00:00:17: %LINK-5-CHANGED: Interface Vlan1, changed state to administratively do
wn
00:00:17: %SYS-5-CONFIG_I: Configured from memory by console
00:00:18: %SYS-5-RESTART: System restarted --
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(6)EA2c, RELEASE SOFTWARE
(fc1)
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Thu 28-Feb-02 14:44 by antonino
00:00:18: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state t
o down
00:00:20: %LINK-3-UPDOWN: Interface FastEthernet0/19, changed state to up
00:00:21: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up
00:00:21: %LINK-3-UPDOWN: Interface FastEthernet0/3, changed state to up
00:00:21: %LINK-3-UPDOWN: Interface FastEthernet0/4, changed state to up
00:00:21: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/19, chan
ged state to down
00:00:21: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up
00:00:21: %DTP-5-TRUNKPORTON: Port Fa0/19 has become dot1q trunk
00:00:22: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, chang
ed state to down
please find bellow the output of (sh stacks) command:-
Switch-2#sh stacks
Minimum process stacks:
Free/Size Name
4924/6000 calhoun_flash init
5592/6000 SPAN Subsystem
5584/6000 platform SPAN Subsystem
9504/12000 Init
5308/6000 RADIUS INITCONFIG
8112/9000 DHCP Client
Interrupt level stacks:
Level Called Unused/Size Name
3 7994 7872/9000 StrataSwitch
4 2090 8712/9000 EIC intr
7 23233 8748/9000 Timer Interrupt Handler
Spurious interrupts: 1
Any help would be highly appreciated,
Thanks,
04-22-2006 03:25 AM
Could you show us the output of this command "sh ver | inc ystem returned"?
04-22-2006 03:53 AM
Hi,
The sh ver | inc system returned is not supported on my switch, only (sh ver) command and bellow the output:-
Switch-2#sh version
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(6)EA2c, RELEASE SOFTWARE
(fc1)
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Thu 28-Feb-02 14:44 by antonino
Image text-base: 0x80010000, data-base: 0x8042C000
ROM: Bootstrap program is CALHOUN boot loader
Bayanat-sw2 uptime is 1 hour, 18 minutes
System returned to ROM by power-on
System image file is "flash:c2950-i6q4l2-mz.121-6.EA2c.bin"
cisco WS-C2950-24 (RC32300) processor (revision C0) with 21295K bytes of memory
Processor board ID FOCX0711Z172
Last reset from system-reset
Running Standard Image
24 FastEthernet/IEEE 802.3 interface(s)
32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: 00:0D:28:BF:DE:40
Motherboard assembly number: 73-5781-10
Power supply part number: 34-0965-01
Motherboard serial number: FOC07291RD9
Power supply serial number: PHI0146WATO
Model revision number: C0
Motherboard revision number: A0
Model number: WS-C2950-24
System serial number: FOCX0711Z172
Configuration register is 0xF
Switch-2#
Any Ideas,
Thanks,
04-22-2006 06:07 AM
Hi Friend,
I got some information from the cisco output interpreter using the stack information which you posted.
Have a look at this
This device has reported 1 spurious interrupts. These interrupts occur
when an unnecessary interrupt is raised for an already processed packet, possibly
due to an internal race condition, or due to improper initialization of interrupt
handling routines. These may be caused either by defective hardware, or by software.
There is no discernable impact on the behavior of the router due to such spurious
interrupts. They are only counted for monitoring purposes. They may safely be ignored
as long as the number of spurious interrupts is not high and increasing, along
with some dropped packets or degraded performance.
For more information on spurious interrupts
HTH, if yes please rate the post.
Ankur
04-22-2006 06:36 AM
Hi Ankur,
Ur post is helpfull, I red it but I am really wondering what is the suitable solution for such issue??
Thanks,
04-22-2006 06:44 AM
HI Friend,
As I see Spurious Interrupts you can first try upgrading the IOS on your BOX to the latest one in its train as continuous restart can be result of IOS bug.
If still the problem is not resolved I am afraid if it is a hardware failure. But before replacing hardware you can contact Cisco TAC is possible.
HTH, if yes please rate the post.
Ankur
04-22-2006 01:47 PM
Hello,
in addition to Ankur's post, from your first output it looks like your port FastEthernet0/19 is changed to trunk mode. Can you check what the port is supposed to be used for ? You might want to set it to either 'switchport mode trunk' and configure it with 'switchport nonegotiate' in order to disable any sort of DTP. Or, if the port is left to it's defaults, set it to 'switchport mode access', and check if the problem persists...
Regards,
GNT
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: