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Packet Discarding Inside a SIMA Network-a Waste of Network Resources?
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Simple Integrated Media Access (SIMA) is a network service based on drop preference bits in every packet。 A key characteristic of SIMA is that packet discarding decision are made locally without any knowledge about the load condition in other parts of the network。 A possible problem of SIMA is that some packets could be lost in the last node after they have gone through the whole network。 This seems to be a waste of network resources, as some other packets could be transmitted in the network instead of the packets discarded in the last node。