| 摘要 |
In an interface device connecting packet multiplexing networks and a time division multiplexing channel network having different multiplexing systems, and a network system, an address table associates a destination address with a broadcast identifier, a group identifier, and a port identifier uniquely indicative of a virtual concatenation channel for transmitting a packet to be stored, a tag generator of an extended header terminator, based on this address table, adds the broadcast identifier, the group identifier, and the port identifier to a received packet to be transmitted. A time division multiplexer of a frame processor having received this packet performs mapping on a virtual concatenation channel corresponding to the port identifier, and broadcasts or multicasts the packet according to the broadcast identifier and the group identifier.
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