In Summit X450a and X450e series switches, the ports on the XGM2-2sf option card can be configured as alternate stacking ports in a SummitStack configuration that uses the SummitStack-V feature. For more information about stacking ExtremeSwitching switches, see Building Stacks.
For current information about compatible XENPAK modules and the minimum required software, refer to the most recent version of the Extreme Hardware/Software Compatibility and Recommendation Matrices.
Note
Standards-based CX-4 XENPAKs are also recognized by ExtremeXOS. Contact your CX-4 module vendor to obtain them.