February 2003
Intermediate to advanced
592 pages
11h 47m
English
A packet is accepted by a device if certain fields indicate it is the intended recipient. For directed requests or responses, this will be the end of packet travel. For broadcast requests, the packet is consumed and passed downstream to the next device.
A node will accept (consume) an incoming packet if any of the following conditions are met.
The packet is a broadcast request (determined from the command type)
The packet is a directed request which carries a UnitID = 0 (coming from a bridge), the compatibility bit is clear (only subtractive decoders may claim a request if compatibility bit is set), and the address is owned by this node.
The packet is a directed request which carries a UnitID = 0 (coming from ...
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