为使路由器运行新的Cisco IOS软件镜像，您需要重新加载路由器。请确保您已发出 copy running-config starting-config 命令或者 write memory 命令来保存配置。
3600#write memory
3d01h: %SYS-5-CONFIG_I: Configured from console by vty0 (127.0.0.11)
Building configuration...
3600#reload
步骤 7: 检验升级
当路由器开启后，请通过发出 show version 命令确保您当前运行的是新版本。
3640#show version
Cisco Internetwork Operating System Software
IOS (tm) 3600 Software (C3640-I-M), Version 12.2(7b), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Mon 04-Mar-02 20:23 by pwade
Image text-base: 0x600089A8, data-base: 0x60A6A000
ROM: System Bootstrap, Version 11.1(19)AA, EARLY DEPLOYMENT RELEASE SOFTWARE (f)
Router uptime is 2 minutes
System returned to ROM by reload
System image file is "slot1:c3640-i-mz.122-7b.bin"
cisco 3640 (R4700) processor (revision 0x00) with 59392K/6144K bytes of memory.
Processor board ID 10524422
R4700 CPU at 100Mhz, Implementation 33, Rev 1.0
Bridging software.
X.25 software, Version 3.0.0.
4 Ethernet/IEEE 802.3 interface(s)
DRAM configuration is 64 bits wide with parity disabled.
125K bytes of non-volatile configuration memory.
4096K bytes of processor board System flash (Read/Write)
20480K bytes of processor board PCMCIA Slot0 flash (Read/Write)
20480K bytes of processor board PCMCIA Slot1 flash (Read/Write)
Configuration register is 0x2102
请检验是否正确使用了版本12.2（7b），且config - register设定为0x210
