REP limitation/consideration for the maximum supported switches in a ring.

[Muhammed Adnan]

Hello Experts

My deployment is as such that I need to connect upto 20 switches in a ring and I planning to run REP over them. 

I am not able to get any document for  recommendation/consideration that has to be taken into account for having the quantity of switches in a ring running REP.

[Joseph W. Doherty]

Not certain it's 100% germane, but http://literature.rockwellautomation.com/idc/groups/literature/documents/td/enet-td005_-en-p.pdf contains: "Tested and validated up to 24 switches per segment (not including distribution switches) "

[Muhammed Adnan]

Thank you Joseph for the link :)

Additionally do we have any document from Cisco speaking on the recommendations or considerations while we are having switches in larger rings running REP?

[Joseph W. Doherty]

At the time of my original posting, I didn't find anything on Cisco's web site, so then I resorted to a generic Internet search and I didn't find much on the subject beyond what I referenced.

Possibly there's some additional RFC information, but I didn't check.