V400 is the default mode that sets the stack ports to 106G. V400 alternative configuration is required when using specific fiber cables. This mode sets the stack ports to 100G, enables pre-emphasis, and FEC (clause_91).
ExtremeSwitching X590, X690, X870 series switches.
Changes are underlined.
configure stacking-support stack-port [stack-ports | all] selection [native {V80 | V160} | V320 |V400 {alternative-configuration} | help} | alternate]