3-50
Multiple Instance Spanning-Tree Operation
Configuring MSTP
Figure 3-19. Show Flash Command after Upgrading the Switch to a New Version of 
the Software (K.12.51)
5. If you want to run the prior software version, K.12.43 in this example, 
enter this command:
HP Switch(config)# boot system flash secondary config 
configK1243.cfg
After rebooting, the switch is running software version K.12.43 and is 
using the configuration file that you saved for this software version, 
configK1243.cfg.
You can also save the K.12.43 configuration file on a TFTP server. If you wanted 
to reload the K.12.43 version of the software again, reload the configuration 
file before you do the reload.
HP Switch(config)# show flash
Image           Size(Bytes)   Date   Version  Build #
-----           ----------  -------- -------  -------
Primary Image   : 6771179   04/17/08 K.12.51    304
Secondary Image : 7408949   11/06/08 K.12.43    123
Boot Rom Version: K.12.12
Default Boot    : Primary