This object indicates the Bridge mode of the switch. Setting this to 'customerBridge' means that the switch will operate as a 802.1Q VLAN Bridge. Setting this to 'providerBridge' means that the Bridge will operate as a normal Q-in-Q Bridge. Setting this to 'providerCoreBridge' means that the switch will operate as a 802.1ad compliant provider bridge with only S-VLAN component. Setting this to 'providerEdgeBridge' means that the switch will operate as a 802.1ad provider edge bridge with S-VLAN component and atleast one C-VLAN component. Setting this to 'providerBackoneICompBridge' means that the switch will operate as a 802.1ah provider backone bridge as an I component. Setting this to 'providerBackoneBCompBridge' means that the switch will operate as a 802.1ah provider backone bridge as a B component. Setting this to 'invalidBridgeMode` is not allowed. Whenever a context is created by default it will be set to `customerBridge`. For changing the bridge mode, GARP and STP modules should be shutdown.