Switch Memory and Configuration

Using Primary and Secondary Flash Image Options

1. In this example show version indicates the

switchhas version G.05.01 in primary flash.

2. After the boot system command, show version indicates that version

G.05.00 is in secondary flash.

Figure 6-9. Determining the Software Version in Primary and Secondary Flash

Switch Software Downloads

The following table shows the switch’s options for downloading a software version to flash and booting the switch from flash

Table 6-1. Primary/Secondary Memory Access

Action

Menu

CLI

Web

SNMP

 

 

 

Browser

 

 

 

 

 

 

Download to Primary

Yes

Yes

Yes

Yes

Download to Secondary

No

Yes

No

Yes

Boot from Primary

Yes

Yes

Yes

Yes

Boot from Secondary

No

Yes

No

Yes

 

 

 

 

 

The different software download options involve different copy commands, plus xmodem, and tftp. These topics are covered in Appendix A, “File Transfers”.

Download Interruptions. In most cases, if a power failure or other cause interrupts a flash image download, the switch reboots with the image previ­ ously stored in primary flash. In the unlikely event that the primary image is corrupted, as a result of an interruption, the switch will reboot from secondary flash and you can either copy the secondary image into primary or download another image to primary from an external source. See Appendix A, “File Transfers”.

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