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distributed double loop computer network (DDLCN)

Distributed Double Loop Computer Network (DDLNC) is an access method based on a further development of the Distributed Loop Computer Network

(DLCN). It is based on the register insertion procedure.In the DDLNC procedure, two rings with opposite transmission directions and buffers in the ring ensure that the shortest path between two communicating stations is used in each case. Moreover, in case of partial system failures, communication

can still be maintained by cleverly utilizing the remaining resources.

DDLCN dual rings

DDLCN dual rings

Each DDLCN ring interface has four connections to the rings: two inputs and two outputs each. Messages not destined for the current station are passed onto the ring in the manner discussed for DLCN after buffering. If a station itself has to send a packet, it has to decide on which ring, i.e. ultimately in which direction, this has to be done. It is useful to make this decision depending on the distance of the communication parameter, related to the direction and under observation of the total traffic on the corresponding ring.

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Englisch: distributed double loop computer network - DDLCN
Updated at: 23.04.2019
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Translations: DE