cc6kxbarModuleModeSwitchingMode indicates switching mode
of the cc6kxbarModuleModeModule.
'busmode' - Modules in this mode don't use fabric.
Backplane is used for both lookup and data
forwarding.
'crossbarmode' - Modules in this mode use backplane
for forwarding decision and fabric for data
forwarding
'dcefmode' - Modules in this mode use fabric for data
forwarding and local forwarding is enabled.