Re: Distributed Router Fabrics

[Randy Bush <randy () psg com>]

> > In a distributed fabric, where is the traditional control plane run?
> > Say I've got 100 BGP sessions of upstream,peer, and downstream across
> > ten routers. Is each pizza box grinding this out on its own, or is the
> > work done on the x86 box mentioned in the larger installations?
>
> one way to think of it is that each pizza box (customer facing ports)
> recognizes control plane messages (e.g. port 179) and "punts" them to
> the control plane box, aka routing engine.

fwiw, that is pretty much what line cards on a big-box fabric do, punt
to the RE.

randy