Kenneth Culver wrote:

As a Note, the top end routers out there, Junipers, run JunOS, which is
a FreeBSD variant. A Juniper M160 can route OC192's at wire speed
(That's 10Gb/s folks).

However, the way those are set up, FreeBSD doesn't do the actual routing,
as far as I can remember they upload a routing table to the line cards and
transfer any changes to the routing table to the line cards, so the
routing itself is done by high-speed hardware, and FreeBSD is mainly
managing all the custom hardware. We did a similar thing when I worked for
Ericsson with FreeBSD.


That is correct, the routing for the line cards is done on dedicated hardware. Now, they also do route via the management interface, which is done by the kernel.


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