This is indicative of a Hardware failure. I have seen something similar with an old 4700 Router, it would crash at random intervals, anything between 4 hours to 4 weeks of operation, regardles of any obvious operation. Replacing the router cured the problem.
Cisco H/W failures are not always common, but they do happen......;-)
Here they here, thanks. I know the IOS is old but we don't have support to get the upgrade and the router has been operating without issues for over 2 years.
------------------ show version ------------------
Cisco Internetwork Operating System Software IOS (tm) 3600 Software (C3640-IS-M), Version 12.2(1), RELEASE SOFTWARE (fc2) Copyright (c) 1986-2001 by cisco Systems, Inc. Compiled Fri 27-Apr-01 03:19 by cmong Image text-base: 0x60008950, data-base: 0x61156000
ROM: System Bootstrap, Version 11.1(20)AA2, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
uptime is 13 hours, 40 minutes System returned to ROM by bus error at PC 0x610561EC, address 0x1 System image file is "flash:c3640-is-mz.122-1.bin"
cisco 3640 (R4700) processor (revision 0x00) with 59392K/6144K bytes of memory. Processor board ID 26388688 R4700 CPU at 100Mhz, Implementation 33, Rev 1.0 Bridging software. X.25 software, Version 3.0.0. SuperLAT software (copyright 1990 by Meridian Technology Corp).
1 FastEthernet/IEEE 802.3 interface(s)
1 ATM network interface(s) DRAM configuration is 64 bits wide with parity disabled.
125K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)
Configuration register is 0x2102
------------------ show stacks ------------------
Minimum process stacks: Free/Size Name 5604/6000 DHCPD Receive 8116/12000 Init 5288/6000 RADIUS INITCONFIG 8720/12000 Virtual Exec
Interrupt level stacks: Level Called Unused/Size Name 1 40679547 7964/9000 Network interfaces 2 11608 8620/9000 DMA/Timer Interrupt 3 0 9000/9000 PA Management Int Handler 4 47 8616/9000 Console Uart 5 0 9000/9000 External Interrupt 7 12310505 8604/9000 NMI Interrupt Handler
System was restarted by bus error at PC 0x610561EC, address 0x1
Stack trace from system failure: FP: 0x61E41358, RA: 0x610561EC FP: 0x61E413D0, RA: 0x610688F4 FP: 0x61E41408, RA: 0x610484D4
***************************************************
******* Information of Last System Crash *************************************************************
System was restarted by bus error at PC 0x610561EC, address 0x1
the above message with an invalid memory address suggest that the issue is potentially a software bug.
Not that you software is old but it is the first release of 12.2
are all of your 3640's running the same release ?
You really should get a minimal support contract ( 8 x 5 NBD ) so you can upgrade the software
has anything changed in your environment lately in terms of volume or type of traffic that is hitting this box ?
Any config changes ?
do you have an OC3 ATM interface in the 3640 ???
=============================================
The failure was caused by a software defect.Note that this is a bus error crash and can also be hardware related.Please read Troubleshooting Bus Error Crashes for more details,especially if no bug from the list seems to match your issue.
Merv, thanks so much for your replies and insights. Much appreciate it.
Yea, all our 3640's are running the same IOS release. The one that's having issues does have an ATM interface that's connected via DS3 to a disaster recovery site. The config hasn't been changed, nor has traffic increased since it went live 2 years ago. I'll see if I can get the IOS upgraded.
Thanks again.
The partial show int is below:
ATM0/0 is up, line protocol is up Hardware is RS8234 ATM DS3 Internet address is x.x.x.x/30 MTU 4470 bytes, sub MTU 4470, BW 45000 Kbit, DLY 190 usec, reliability 255/255, txload 3/255, rxload 2/255 Encapsulation ATM, loopback not set Keepalive not supported Encapsulation(s): AAL5 1024 maximum active VCs, 1 current VCCs VC idle disconnect time: 300 seconds Last input 00:00:22, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:
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