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File Transfers
Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Downloading Switch Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
General Software Download Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Using TFTP To Download Switch Software from a Server . . . . . . . . A-4
Menu: TFTP Download from a Server to Primary Flash . . . . . . . A-4
CLI: TFTP Download from a Server to Flash . . . . . . . . . . . . . . . . A-7
Using Secure Copy and SFTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10
The SCP/SFTP Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10
Disable TFTP and Auto-TFTP for Enhanced Security . . . . . . . A-11
Command Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-13
Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-14
SCP/SFTP Operating Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-14
Troubleshooting SSH, SFTP, and SCP Operations . . . . . . . . . . A-16
Using Xmodem to Download Switch Software From
a PC or UNIX Workstation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-17
Menu: Xmodem Download to Primary Flash . . . . . . . . . . . . . . . A-17
CLI: Xmodem Download from a PC or UNIX Workstation to
Primary or Secondary Flash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-18
Switch-to-Switch Download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-19
Menu: Switch-to-Switch Download to Primary Flash . . . . . . . . A-19
CLI: Switch-To-Switch Downloads . . . . . . . . . . . . . . . . . . . . . . . A-20
Using PCM+ to Update Switch Software . . . . . . . . . . . . . . . . . . . . . . A-22
Copying Software Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-22
TFTP: Copying a Software Image to a Remote Host . . . . . . . . . A-22
Xmodem: Copying a Software Image from the Switch to a
Serially Connected PC or UNIX Workstation . . . . . . . . . . . . . . . A-23
Transferring Switch Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . A-23
A-1