Cisco7200系列上的NPE225故障一例

//////////////CISCO7204/06 NPE-225+I/O-1FE/ I/O-AUX

Enabled 灯亮，Slot0:上插有8M Flash卡，而且能检测到有软件存在.//////////////

System Bootstrap, Version 12.2(1r) [dchih 1r], RELEASE SOFTWARE (fc1) boot

*** Coprocessor Unusable Exception *** ///这里提示协处理器不可用，没有在意////
PC = 0x87ff7840, Cause Reg = 0x2000002c, Status Reg = 0x3040d003

monitor: command "boot" aborted due to exception

/////////// 从NPE上启动BOOT软件，但是没有成功，重新尝试启动///////////

System Bootstrap, Version 12.2(1r) [dchih 1r], RELEASE SOFTWARE (fc1)
Copyright (c) 2001 by cisco Systems, Inc.
C7200 platform with 131072 Kbytes of main memory

*** Emulating mis-aligned load at 0x8000ca6a 
PC = 0x87ff7800 ... succeeded 

*** Emulating mis-aligned store at 0x800108fd 
PC = 0x87ff7808 ... failed, opcode = 0x0 

*** Coprocessor Unusable Exception *** 
PC = 0x87ff7840, Cause Reg = 0x2000002c, Status Reg = 0x3040d003 

monitor: command "boot" aborted due to exception 

Rommon1>dev 
flash: bootflash 
slot0: 
slot1: 
disk0: 
disk1: 
Rommon2>dir bootflash: 
bootflash:/ 
1662343 bootflash: nffca.na 
Rommon3>dir slot0: 
slot0:/ 
4828273 slot0: nffca12.na 
Rommon4>boot bootflash: 

重复启动然后回到ROM状态....
Rommon5>boot slot0:
状态依然.......
Rommon6>cpu_card_type
C7206 NPE(225)
可以认出NPE的类型为225。

换了一台路由器问题一样（NPE225）

CISCO7204/06 NPE150+I/O-1FE /I/O-AUX
启动正常.

• Cisco 7200系列路由器体系结构

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