Using RSTP with E2 and E3 Modules

Abstract

Showing how to use RSTP (Rapid Spanning Tree Protocol) with E2 and E3 modules for network link automatic healing.

Products

E2-MIX24880-D/E2-MIX24882-D/E2-MIX20884-D/E2-8AO20M-D/E2-32AI20M-D/E2-32AI10V-D/E2-32DI24-D/E2-32DO24-D/E2-16AI20M-D/E2-16AI-8AO-D/E2-16DI24-D/E2-16DIAC-D/E2-16DO24-D/E2-16DORLY-D/E2-16ISO20M-D/E2-16ISOTC-D/E2-10RTD-D

E3-MIX24882-1/E3-MIX24880-1/E3-MIX20884-1/E3-32DI24-1/E3-16DI24-1/E3-16DIAC-1/E3-32DO24-1/E3-16DO24-1/E3-16DORLY-1/E3-32AI20M-1/E3-32AI10V-1/E3-16AI20M-1/E3-16ISO20M-1/E3-16AI8AO-1/E3-8AO20M-1/E3-16ISOTC-1/E3-10RTD-1

NT-5006-000-0000/NT-5006-DM2-0000/NT-5008-000-0000/NT-5008-DM2-0000/NT-5008-FX2-SC00/NT-5008-FX2-SC15/NT-5008-FX2-SC40/NT-5008-FX2-SC80/NT-5008-FX2-ST00/NT-5008-FX2-ST15/NT-5008-FX2-ST40/NT-5008-FX2-ST80/NT-5008-GX2-SC00/NT-5008-GX2-SC10/NT-5008-GX2-SC40/NT-5008-GX2-SC80/NT-5010-DM2-0000/NT-5010-FX2-SC00/NT-5010-FX2-SC15/NT-5010-FX2-SC40/NT-5010-FX2-SC80/NT-5010-FX2-ST00/NT-5010-FX2-ST15/NT-5010-FX2-ST40/NT-5010-FX2-ST80/NT-5010-GX2-SC00/NT-5010-GX2-SC10/NT-5010-GX2-SC40/NT-5010-GX2-SC80/NT-5016-000-0000/NT-5018-DM2-0000/NT-5018-FX2-SC00/NT-5018-FX2-SC15/NT-5018-FX2-SC40/NT-5018-FX2-SC80/NT-5018-FX2-ST00/NT-5018-FX2-ST15/NT-5018-FX2-ST40/NT-5018-FX2-ST80/NT-5018-GX2-SC00/NT-5018-GX2-SC10/NT-5018-GX2-SC40/NT-5018-GX2-SC80

Use Case: You would need this if your process must have reliable control even if a network break occurs

Network Layout/Topology

Functionality

• As you can see above the NT500x switch is connected to the E3 remote modules in a ring configuration. 
• Please consult the E3 manual on how to set the internal jumper of each unit for pass thru
• By default, the NT500x switch has RSTP cut on from the factory so all you must do is to plug the modules into it and you then have a fully functional RSTP ring which will automatically switch over if a network failure occurs either at one end or in the middle of the network.
• Using out of the box settings you will typically get a 20 second failover.  There are some setting you can tweak in the RSTP setup to make this a little faster, but out of the box should work fine for most applications

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