A

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