Catalyst 9300 Ether channel between stacks

[rogerdra]

I need to add a stack member to two of my existing switches (unstacked). The switches have 2x fibre cross-links with layer2 stretched VLANs and an OSPF peering.The cross-links are bundled using LACP.

Would there be any harm in moving one of the bundled fibres to stack member 2 as follows? This would effectively mean the ether-channel po1 is made up of more than one member?

Stack1-te1/1/1 - Stack1-te1/1/1 Stack2-te2/1/1 - Stack2- te2/1/1

Many thanks for any advice.

[balaji.bandi]

So i take this for now

Switch1 --(Fibre x 2 - LACP)--Switch2

you want to add stack exiting switch1 adding new switch to make stack (is this for both the sides ?

below

Switch1-1    --------------Fibre-1---------------- SWITCH 2-1

  | 

SWITCH1-2  --------------Fibre-2---------------- SWITCH 2-2

i do not see any issue technically, moving one link from existing bundle here. but there will small blip when the LACP convergence take place on Layer2