[j-nsp] VLAN's on EX4300 with 13.2X50-D15.3

Chuck Anderson cra at WPI.EDU
Thu Feb 20 17:49:30 EST 2014


On Thu, Feb 20, 2014 at 02:31:58PM -0800, ryanL wrote:
> weren't the ex4200 VC connections 64/128 Gbps thru the ribbon cable? why is

No, 32 Gbps through PCIe x8.  Marketing would have you believe it is
128 Gbps, but using their definitions, a 10 GigE port is 40 Gbps.  In
reality the VCPs each do 32 Gbps full-duplex, and there are two of
them per switch.  So 2*(32 in + 32 out) = 128 Gbps.

> 40G which uses up actual ports all that exciting? maybe i don't see it
> because it doesn't apply to my architecture. :-/

40 Gbps is bigger than 32 Gbps?  Standard cabling?


More information about the juniper-nsp mailing list