I have enabled jumbo frames in the core switch on all interfaces expected to require them in the future - this is largely to prepare for implementing the gigabit ethernet video cameras.

While I expected this to be a non-destructive change, apparently it interrupted the inter switch trunk links long enough to crash the Comtrol based systems (dust monitors and weather stations) and potentially caused the EDCU to drop channels.  Those systems have been (or are) being restarted.

In addition, I have enabled jumbo frames and loaded new IOS code on sw-msr-ops, sw-msr-server1, sw-lvea-aux0, and sw-msr-gc, but these switches have NOT been restarted for jumbo frames and the new IOS to take effect.  This will be done during the next available maintenance period.  The code version installed is 15.0.2-SE2, upgraded from 15.0.2-SE1.  15.0.2-SE2 has already been installed and tested on the (new) sw-msr-server2, and appears to be an uneventful upgrade.