Brocade Communications Systems ICX 6430 Hardware Installation Manual page 43

This is a single ring configuration in which the second ICX 6610 device is connected to the first ICX
6450 device, and the first ICX 6610 device is connected to the last ICX 6450 device. There is one
substack that contains three peripheral devices.
FIGURE 34 Topology 1: single ring
Topology 2: dual ring
In the figure below, two ICX 6610 devices form the backbone and there are six ICX 6450 peripheral
devices in two rings. This is a dual ring configuration.
The first ICX 6610 device is connected to the last ICX 6450 device in the "vertical" ring. The backbone
devices are also connected to the first and last ICX 6450 devices in the "horizontal" ring.
Brocade ICX 6430 and ICX 6450 Stackable Switches Hardware Installation Guide
53-1003079-01
Topology 2: dual ring
41