Packet will follow this path:
Hence the number of time it is accessing network layer = 4
the number of times it is accessing data link layer = 7
Sequence:
@R1 packet is received at DLL it opens the packet at network layer it sees the destination address is different and then it forwards it to the bridge by repacking it and passing it through DLL. Bridge forwards the packets using DLL. This same process goes on till receiver receives the packet.
