Doubt about CIP and Cisco switches

[mnkojima]

Hello

I am new at industrial networks and have a doubt. Do Cisco switches (ex: C3850) have to support CIP or PROFINET in such network so that all of industrial devices can communicate to each other?

Thank you

Marcos

[Julio E. Moisa]

Hi Marcos

I think the 3850 does not support CIP/PROFINET just IE3000 ethernet switches.

https://www.cisco.com/c/en/us/products/switches/industrial-ethernet-3000-series-switches/index.html

Also check:

http://cfn.cloudapps.cisco.com/ITDIT/CFN/jsp/by-feature-technology.jsp  and type CIP/PROFINET to get the devices. 

https://www.cisco.com/c/en/us/td/docs/switches/lan/cisco_ie4010/software/release/15-2_4_EC/configuration/guide/scg-ie4010_5000/swcip.pdf

I think the Cisco 3850 will forward the layer 2 frame from the source to the destination but it cannot support CIP or Profinet by itself. 

[mnkojima]

Hi Julio. Thank you for your support.

That is exactly the point. The industrial network will be composed of a ring with 15 switches C3850. We firstly considered using REP but a doubt came up about if CIP/PROFINET must be supported because of the industrial equipments. If this is a requirement, then C3850 could not be used.

Do you know if I can proceed using C3850 with REP?

Thank you

Marcos

[Julio E. Moisa · Accepted solution]

Hi Marcos, 

My logic says it should work, because the industrial switches will encapsulate the information into the layer 2 frameand pass it through the normal switches up to reach the destination, so you need to create the same VLANs on the switches through the paths. You could test it with other switch models before to see the behavior. 

Other way and suggested is open a case with the Cisco TAC in order to get an accurate answer.