Performance enhancement of double linked backbone rings in interconnected token ring network

Experimental results show that the performance of the IEEE 802.2 and 802.5 protocols for a single token ring is severely degraded in an interconnected token ring network. Congestion at bridges in a network is the primary cause of the degradation of the performance. An approach is investigated in which a secondary transmission link is added to the backbone ring of a network to form a double-linked backbone ring network. The effective processing speed of bridges for this double-linked backbone ring network is double that of the original single-linked backbone ring network. The increased processing speed of the bridges enhances the performance of the network. Experimental results show that the proposed double-linked backbond ring network substantially enhances the utilization, throughput, and response time compared to the original network