CCNP指导：CCNP交换篇6ATM交换机通讯管理基础（2）
Catalyst 4000, Catalyst 2948G, Catalyst 2980G升级Step 1:
rommon 1 > show interface
me1: inet 172.20.58.227 netmask 255.255.255.0 broadcast 172.20.58.255
rommon 2 > show ip route
Destination Gateway Interface
----------------------- ----------------------- ---------
default 0.0.0.0 me1
Step 2: Set the default gateway, if needed.
rommon 3 > set ip route default 172.20.58.1
Step 3:
rommon 5 > set
PS1=rommon ! >
AutobootStatus=success
MemorySize=32
DiagBootMode=post
?=0
ROMVERSION=4.4(1)
WHICHBOOT=bootflash:cat4000.4-4-1.bin
BOOT=bootflash:cat4000.4-4-1.bin,1;
rommon 6 > Tftpserver=172.20.59.67
!--- Setting TFTP server variable.
rommon 7 > set
!---Verifying the setting.
PS1=rommon ! >
AutobootStatus=success
MemorySize=32
DiagBootMode=post
Tftpserver=172.20.59.67
?=0
ROMVERSION=4.4(1)
WHICHBOOT=bootflash:cat4000.4-4-1.bin
BOOT=bootflash:cat4000.4-4-1.bin,1;
Step 4: Netboot the system.
rommon 9 > boot cat4000.4-4-1.bin
Step 5: After netbooting the system, you will get the switch console. Use the copy tftp Flash command to copy the valid image to the Flash
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