How to upgrade Cisco switch IOS

Check existing version SW1# show version Check existing boot location SW1# show boot Backup existing version SW1# copy flash:c3750-ipbasek9-mz.122-25.SEE3.bin tftp: Download new IOS and verify MD5 SW1# copy tftp flash SW1# dir flash: SW1# verify /md5 flash:c3750-ipbasek9-mz.122-25.SEE3.bin Get-FileHash on Windows dir Get-FileHash <filepath> -Algorithm MD5 Get-FileHash .\c3750-ipbasek9-mz.122-55.SE12.bin -Algorithm MD5 Ask switch to boot from new … Continue reading How to upgrade Cisco switch IOS