How to add more physical port to an IRF Fabric

[Lee-Nguyen]

Dear all experts and friends,

I have an IRF fabric between two switches. 

Device A--------IRF-------Device B

+) Physical port Ge1/0 on Device A bind to IRF

+) Physical port Ge1/0 on Device B bind to IRF

=> IRF up, and working fine. But now, I want to add/bind more physical interface to IRF fabric:

+) Physical port Ge 1/2/0 ( device A)

+) Physical port Ge 2/2/0 ( Device B)

When I use the command:

IRF port 1

port group interface ge 1/2/0

I saw this message: 

Check failed for reason:
This channel mode already exist!

Please help me to do that, I heard that i must add/bind physical interface before setting IRF fabric.?

Thank you so much | Lee Nguyen

[parnassus]

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@Lee-Nguyen wrote: Iheard that i must add/bind physical interface before setting IRF fabric.?

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No, it's not mandatory indeed the command port group exists at irf port context level...exactly for the purpose of adding a suitable physical port as new member of an existing IRF logical port.

Could you show us exact IRF status, exact IRF/physical interfaces details plus HPE SKU models/software version your IRF is running on?