最近在一用户处巡检，发现其核心交换机cisco4507R一个引擎有报警，查看module情况如下：

4507r#show module

Chassis Type : WS-C4507R

Power consumed by backplane : 40 Watts

Mod Ports Card Type                              Model              Serial No.

---+-----+--------------------------------------+------------------+-----------

 1     2  Supervisor II+ 1000BaseX (GBIC)        WS-X4013+          JAE12513NLI

 2        Supervisor

 3     6  1000BaseX (GBIC)                       WS-X4306-GB        JAE12502T8B

 4     6  1000BaseX (GBIC)                       WS-X4306-GB        JAE124601NW

 5    48  10/100/1000BaseT (RJ45)                WS-X4548-GB-RJ45   JAE12513G3Q

 M MAC addresses                    Hw  Fw           Sw               Status

--+--------------------------------+---+------------+----------------+---------

 1 0024.1430.85c0 to 0024.1430.85c1 4.6 12.2(31r)SGA 12.2(31)SGA8     Ok      

 2 Unknown                              Unknown      Unknown          Other

 3 001b.5481.9dc6 to 001b.5481.9dcb 4.4                               Ok      

 4 0016.c76f.a84e to 0016.c76f.a853 4.4                               Ok      

 5 0024.1441.2740 to 0024.1441.276f 2.5                               Ok      

Mod  Redundancy role     Operating mode      Redundancy status

----+-------------------+-------------------+----------------------------------

 1   Active Supervisor   SSO                 Active                           

 2   Standby Supervisor  SSO                 Disabled                         

在槽2 的引擎板看不到，冗余状态为disable，判断引擎板有问题，因这个型号太老了，只能买到一块旧的引擎板，为保险起见，更换引擎前先备份配置和运行引擎板的ios，因怕ios太大tftp 32M文件的限制，采用ftp来上传，用win7自带的ftp功能（win7怎么配ftp可以百度一下），具体过程如下：

4507r(config)#ip ftp username czq

4507r(config)#ip ftp password 615

在4507上建立可以ftp的win7 ftp服务器的用户名和密码，接下来备份ios，

4507r#copy bootflash:cat4500-ipbase-mz.122-31.SGA8.bin ftp

Address or name of remote host []? 192.168.13.107

Destination filename [cat4500-ipbase-mz.122-31.SGA8.bin]?

Writing cat4500-ipbase-mz.122-31.SGA8.bin !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!12127880 bytes copied in 12.096 secs (1002636 bytes/sec)

同样把start-config配置也拷贝一下。

 把引擎板热插入原故障板的槽位中，耐心等待直到原故障灯变为绿色，查看module，发现更换的引擎与原引擎版本不同，并且冗余状态为 Standby Supervisor SSO Standby clod，这不是想要的最终状态，需要升级引擎与原引擎一致，过程如下：

4507r# copy bootflash： slavebootflash：

删除slave的ios ：

4507r#delete slavebootflash：

需要把更换的引擎板再重启一下，（可以重新插入引擎板），以便新ios生效，最后module状态如下：

 4507r#show module

Chassis Type : WS-C4507R

Power consumed by backplane : 40 Watts

Mod Ports Card Type                              Model              Serial No.

---+-----+--------------------------------------+------------------+-----------

 1     2  Supervisor II+ 1000BaseX (GBIC)        WS-X4013+          JAE12513NLI

 2     2  Supervisor II+ 1000BaseX (GBIC)        WS-X4013+          JAE1119G877

 3     6  1000BaseX (GBIC)                       WS-X4306-GB        JAE12502T8B

 4     6  1000BaseX (GBIC)                       WS-X4306-GB        JAE124601NW

 5    48  10/100/1000BaseT (RJ45)                WS-X4548-GB-RJ45   JAE12513G3Q

 M MAC addresses                    Hw  Fw           Sw               Status

--+--------------------------------+---+------------+----------------+---------

 1 0024.1430.85c0 to 0024.1430.85c1 4.6 12.2(31r)SGA 12.2(31)SGA8     Ok       

 2 0024.1430.85c2 to 0024.1430.85c3 4.3 12.2(31r)SG2 12.2(31)SGA8     Ok      

 3 001b.5481.9dc6 to 001b.5481.9dcb 4.4                               Ok      

 4 0016.c76f.a84e to 0016.c76f.a853 4.4                               Ok      

 5 0024.1441.2740 to 0024.1441.276f 2.5                               Ok      

Mod  Redundancy role     Operating mode      Redundancy status

----+-------------------+-------------------+----------------------------------

 1   Active Supervisor   SSO                 Active                           

 2   Standby Supervisor  SSO                 Standby hot

现在更换引擎已是热备状态，齐活，可以收工了。

WS-C4507R引擎故障更换