A Switch Stack is a group of individual switches stacked together (connected together using Stack cables) to form a single larger switch. The complication of upgrading the IOS on a 3750 Switch Stack is that the IOS has to be upgraded on all the switches in the stack and the IOS has to be the same on each individual 3750 switch in the stack. Use the show stack or show switch commands to determine the Master switch and how many switches form the stack.
A telnet access to the Stack Switch will give access to only the Master Switch in the Stack, thereafter a normal copy tftp: flash: command will only copy the IOS from the TFTP to the flash on the Master switch but not the other slave switches in the stack. The flash memory on each switch in the stack can be accessed separately, for eg; flash1: is the flash of switch1, flash2: is the flash of switch2.....etc., therefore you can do
SW# copy tftp: flash1:
SW# copy tftp: flash2:
....
to copy the IOS from TFTP to the flash memory in each switch. If you have already a copy of IOS on one flash, you can use copy flash1: flash2: to copy the IOS from one flash to another. Finally to instruct the stacked switch to boot the same IOS from all the individual switches
SW(config)# boot system switch all flash:c3750e-universalk9-mz.122-44.SE2.bin
No comments:
Post a Comment