Hello everyone,

 

I have a problem with the configuration of a fiber ring on my networks since the move to the new omada platform version.

I will try to give as much info as possible in order to someone help me with this, this post will have specific firmware versions specified, but, this problem happens in various versions.

 

I have the following topology:

 

 

My firewall is: ER605 v2.0 fw: 2.3.3

Core Switch: SG3428 v2.3 fw: 2.30.16

Switch 1 to 6: SG3428 v2.3 fw: 2.30.16

Omada Controller: OC300 1.0 fw: 1.32.10

 

In the Core Switch I have configured the Services with Loopback Detection active, Spanning Tree = RSTP and CIST Priority = 4096

Core Switch fiber ports 25 and 26, where the fiber loop connects are configured the following way:

Profile Overrides active and Loopback control = Spanning Tree

 

Switch 1 to 6 are configured the same way but, with a higher CIST Priority, as we can see in the image bellow:

Switch 1 to 6 have Loopback Detection Enabled and Spanning Tree = RSTP

And port 25 and 26 configured this way, on switch 1 to 6:

 

All the switchs have some computers and other IOT devices connected. Every time I close the ring on the core switch, with this configuration defined previously, all the devices goes crazy, for example, my computer connected to the core switch stops responding. As soon as I disconnect a fiber port on the root switch and I cut the fiber loop, everithing goes back to normal.

 

Can someone see anything wrong in this config?

There are any limit regarding the max number of siwtch that I can have in the ring connected to the root switch?