For the treatment and / or packet forwarding method and apparatus

Some embodiments may be based on which the packet was received in a port and / or one or more of the packet fields, the inside of the packet is determined virtual network identifier and / or internal policy identifier. The system may then virtual and / or the internal policy based on said internal identifier of the network identifier to process and / or forward the packet. Some embodiments may perform the remote mirroring port. Some embodiments can be mapped to a first bit group packet QoS to the second set of QoS bit group, for use in a Transparent Interconnection of Lots of Links (the TRILL) encapsulates the packet in the package. Some embodiments may support more effectively and for performing a multicast tree in the network layer multicast TRILL network. Some embodiments may be based on each virtual network the packet flooding.