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Bus Error

Dear Net Pros,

We are having a Cisco AS5350 which we are using for terminating voip traffic from Tier 1 Carriers. Now there is something strange happening on the gateway. Every Sunday the gateway restarts with the following error given below:


AS5350_1 uptime is 1 week, 4 hours, 10 minutes

System returned to ROM by bus error at PC 0x60271430, address 0x0 at 21:39:16 UT

C Sun Mar 14 2004

System restarted at 21:39:57 UTC Sun Mar 14 2004

System image file is "flash:c5350-is-mz.122-2.XB6.bin"

cisco AS5350 (R7K) processor (revision T) with 131072K/65536K bytes of memory.

Processor board ID JAE07170K8N

R7000 CPU at 250Mhz, Implementation 39, Rev 1.0, 256KB L2, 2048KB L3 Cache

Last reset from warm-reset

Channelized E1, Version 1.0.

Bridging software.

X.25 software, Version 3.0.0.

SuperLAT software (copyright 1990 by Meridian Technology Corp).

Primary Rate ISDN software, Version 1.1.

Manufacture Cookie Info:

EEPROM Type 0x0001, EEPROM Version 0x01, Board ID 0x32,

Board Hardware Version 3.34, Item Number 800-5171-02,

Board Revision C0, Serial Number JAE07170K8N,

PLD/ISP Version 2.2, Manufacture Date 2-May-2003.

Processor 0x14, MAC Address 0x0C85A57618

Backplane HW Revision 1.0, Flash Type 5V

2 FastEthernet/IEEE 802.3 interface(s)

2 Serial network interface(s)

120 terminal line(s)

4 Channelized E1/PRI port(s)

512K bytes of non-volatile configuration memory.

32768K bytes of processor board System flash (Read/Write)

8192K bytes of processor board Boot flash (Read/Write)

Configuration register is 0x2102


Could someone kindly suggest as to how this error can be rectified. Any help or suggestions would be highyl appreciated.



Senior Project Researcher

PP-Ontime Co., Ltd.

Cellular ~ 669-2047331


Re: Bus Error

The bus error is caused when the processor tries to access a memory location that either does not exist or which is corrupted(hardware problem)

Following is a document on troubleshooting bus errors:

Troubleshooting Bus Error Crashes

Also check a similar bug CSCec78235 in the bug tool kit available on

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