Physical connection port capacity validation

[Vinay2509]

Hi Team,

I have senario as we need to create physical connection between A(port-1) & B(port-2) devices.

A-----B

Lets assume  A & B Device has 10 ports each (P1,P2,P3....P10)

I need to create physical connection between A(port-1)--------B(port-1) using physical connection model(OOTB)

Question here, if physical connection is already established on port should not all for next time. Meaning, now port-1 has already physical connection, if I create one more on same port should not allow. currently we dont have validation in ServiceNow.

Please help how we can achieve?

@Aneesh-D - Please check if you have idea, that would be helpful!

[Aneesh-D]

@Vinay2509 - 

Here is a way you could do this:
you can create a subflow that will do this validation: call that subflow before calling the create physical connection.

The subflow (DoesPhysicalConnectionExistsOnPort) could return true if connection already exists else false.

sample could be like this:

Thanks,

Aneesh Damodaran

[Vinay2509]

@Aneesh-D Thanks for Response!

Here user uses Physical connection change request/model to instantiate physical connection between ports, so where does subflow fits and how to invoke subflow?

As you mentioned before creating physical connection, but in flow designer any option to make before(like we do in BR)

please clarify this step, that would be helpful