| 摘要 |
<p>A data transmission network comprised of a number of rooted tree topology sub-networks (10A, 10B, 10C) is provided. The address of each destination host in the network includes an identifier of the host's maximum data-reception rate and the identifier is examined by a discretionary device (CDU32) at each root node (22). If the discretionary device determines that the maximum data-reception rate of the destination host may be exceeded by the simultaneous arrival of transmissions over the sub-networks to which the destination host (12) is attached, the discretionary device in the root node queries a common control device wihch determines the number of transmissions currently being sent to the destination host. If the maximum data-reception rate of the destination host would be exceeded by a transmission in addition to those already being transmitted to the destination host, the common control device resets the querying root node. The maximum reception rate of the destination host is thus prevented from being exceeded and the querying root node is immediately availabe to attempt the transfer of another transmission.</p> |
