R77.30 Jumbo Hotfix Accumulator (since Take_143) contains a kernel parameter "
that is involved in checking whether Cluster Layer is already enabled on the cluster member before registering a Critical Device (Pnote) - refer to sk110073.
By default, this kernel parameter is enabled (its value is set to "1").
Due to incorrect check in Take_162 and above, this check fails on Virtual Switches.
As a result, registration of the Critical Device (pnote) for FWD daemon fails on Virtual Switches.