Network technologies and trends

May 24 2011   5:14AM GMT

SUP 720- 3B failing to boot

Yasir Irfan Yasir Irfan Profile: Yasir Irfan

Friends we have a Cisco Catalyst 6513 Switch installed with SUP 720-3B as a supervisor engine. From past 7 years its working fine but suddenly we the SUP 720-3B supervisor Engine failed. The SUP 720-3B is always going in to rommom mode and I am getting the following error

System Bo otstrap, Version 8.1(3)

Copyright (c) 19 94-20 04 by cisco Systems, Inc.

Cat6k-Sup720/SP processor with 524288 Kbytes of main memory

rommon 1 >

I tried to boot the SUP 720-3B using the boot command from rommon mode but that too failed and I am getting the following error.

%DIAG-SP-6-RUN_MINIMUM: Module 7: Running Minimal Diagnostics…

Also I tried to boot the SUP 720-3B from the flash memory using the “bootflash:”command that too failed again I am getting the same error

%DIAG-SP-6-RUN_MINIMUM: Module 7: Running Minimal Diagnostics…

%Software-forced reload

Breakpoint exception, CPU signal 23, PC = 0x41D8BE6C

-Traceback= 41D8BE6C 41D89DB8 41B370D8 41B37104 41A09A1C 41A4ACCC 41A41000 41A41058 4075B9FC 4075C6E4 419168D8 419166F4 41AD8610 41AD5530 41AD574C 41D7E35C

$0 : 00000000, AT : 43100000, v0 : 44AF0000, v1 : 43640000

a0 : 50E46E18, a1 : 0000F100, a2 : 00000000, a3 : 42E30000

t0 : 41D7E978, t1 : 3400F101, t2 : 41D7E988, t3 : FFFF00FF

t4 : 41D7E978, t5 : 00000000, t6 : 00000000, t7 : 00000000

s0 : 00000000, s1 : 430B0000, s2 : 5033A36C, s3 : 087365C8

s4 : 50D740D0, s5 : 50D1AC48, s6 : 00000040, s7 : 43890000

t8 : 5000BA74, t9 : 00000009, k0 : 00000000, k1 : 00000000

gp : 431011F0, sp : 5000BB28, s8 : 00000000, ra : 41D89DB8

EPC  : 41D8BE6C, ErrorEPC : 65DFF3A3, SREG     : 3400F103

MDLO : 00000000, MDHI     : 00000000, BadVaddr : 00000000


Cause 00000024 (Code 0x9): Breakpoint exception

Writing crashinfo to bootflash:crashinfo_20110523-131601

=== Flushing messages (16:16:01 KSA Mon May 23 2011) ===

Buffered messages:

00:01:01: curr is 0x0

Seems like the SUP 720-3B is crashed, I will open a TAC case and see what the issue is. I know Cisco TAC team is quite helpful and they will come out with a solution for this problem. If anyone has any inputs or solutions they are welcome provide solutions in the comment area of this post.

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