[c-nsp] Upgrading 3750G stacks - SMI to EMI

Afsheen Bigdeli afsheenb at gravityplaysfavorites.net
Mon Jan 22 12:25:55 EST 2007


I'm in the process of planning an upgrade to a stack of WS-C3750G-24TS's 
from the 12.2(25) SMI (basic) to EMI (advanced IP services) image in 
situ. If anyone who's had experience with this could drop me a line, I'd 
appreciate it. My concerns are:

1) After I've copied the new image over to the stack master, will all of 
the other switches be upgraded as well? The documentation that was 
provided with the upgrade CD seems to strongly imply this. If so, great! 
If not, I'll have an EMI image stack master and SMI image stack members, 
which I'd prefer to avoid. My specific concern is that the stack master 
will fail at some point, and then any EMI-related functionality will 
disappear with it.


2) I'm assuming a switch reload will be necessary post-upgrade. Are 
there any caveats / potential gotchas I need to be aware of, beyond the 
usual? I've explicitly specified the stack master in the running config, 
so I'm not worried about accidentally having an SMI switch win the 
master election process.



Thanks in advance,
--afsheenb


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