the XS1920-12 is a non bloking switch?

carlosdelvalle

XS1920-12 is a non bloking switch?

Zyxel_JonasTan

Hi @carlosdelvalle,

Welcome to Zyxel Community!

Kindly define your question more clearly so I could provide to the correct specification to you. Or you may describe which feature are you referring to.

Best Regards,

PeterUK

If I'm right its a non blocking switch.

The XS1920-12 has a Switching capacity of 240Gbps you divide that by 12 (number of ports) giving you 20Gb per port which you divide by 2 giving you 10Gb one way.

Zyxel_JonasTan

Thanks, @PeterUK for the explanation of switch capacity.

But I would like to clarify the meaning of non-blocking switch, are you referring to physical stacking?

If yes, XS1920-12 don't support physical stacking.

CarnegieJ

Additionally for reference, the XS1920 product specifications for the  may be found at this link, https://www.zyxel.com/products_services/12-port-10GbE-Smart-Managed-Switch-XS1920-Series/specification 

CrazyTacos

Found this document that explains blocking/non-blocking switching:
https://lhcb-comp.web.cern.ch/lhcb-comp/daq/postscript/switchperf_june99.pdf