The grandparent post refers to &quot;not using any juniper gear&quot; at all - which brings the performance requirements for a replacement to much higher than just the Netscreen products (which as far as I know represent an old product series that has been end of lifed ).<p>Modern Juniper JUNOS products like the EX switch series contain 1GbE, 10GbE, and 40GbE wire ports and I think push the upper limits of standard linux &#x2F; freebsd on plain x86.<p>Note that JUNOS is actualy based on freebsd (Juniper forked freebsd a while ago into JUNOS) - but they do it on custom asics.