Multi-Tech Systems MultiFRAD FR2201 - Manual (Page 33)

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Chapter 4 - MultiFRAD Software
Spanning Tree Setup
When the Bridging Enable option is enabled, the Spanning Tree Setup dialog box controls
transparent bridging; however, if there are any loops or redundant links in the internetwork, the
Spanning Tree Algorithm Enable option must also be enabled. Spanning Tree is a method of
transparent bridging, as opposed to source route bridging which the MultiFRAD does not support.
The MultiFRAD defaults with one logical WAN port mapped to a DLCI. It is not necessary to map this
port to a DLCI; however, care should be taken if an additional logical WAN is created. An additional
WAN will default to a disabled state, and it must be mapped to a DLCI before it can be used. In most
applications, the forwarding state should be enabled on the first logical WAN, and blocking should be
set up on any additional WANs. While in operation, the MultiFRAD will automatically transition from
blocking to forwarding, and vice versa, as necessary.