• Data packets are forwarded from one network node to another as they move from source to destination in computer networking. However, in Ethernet networks, these packets (called frames in a literal sense because they pass at layer-2 of the OSI layer format within a LAN) may have many pathways to the next hop address.
• Non-Designated Port: A non-designated port is one that has been chosen because it has a greater port cost than a designated port. Non-designated ports will be listed as blocking ports, and no frames will be forwarded. Of course, if the network's topology changes, the same port could become a designated port.

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