When we are trying to configure service port stacking on S5700-52P-LI-AC the SFP ports didnt come up, They remain in the shutdown state. without stacking config they are working fine.
I am using the latest OS, with latest configuration guidelines from HedEx.
If you configure a SFP port for stacking,
This port will be only used for stacking. After you configure the other side device's port for stacking, These two ports will come up.