Dual Ring Application - Planet ISW-1022M User Manual

In Dual Homing application architecture, the upper level switches need to enable the Rapid
Spanning Tree protocol.

3.4 Dual Ring Application

Dual ring is the advanced function that supports backup connection for transmission redundant purpose. While the
connection fails, the system will recover from failure within 20 milliseconds. Apart from that, Dual Ring only needs one unit
(and only the one located in the middle) to be configured as the Ring Master switch to deploy the dual ring.
User's Manual of ISW-1022M
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