Hey,

> More or less -- it's an RE glued to the non-fabric-facing parts of the
> MPC7, which tends to tickle some "interesting" corner cases in code that
> assumes there's a fabric chip present.

I don't think RE connects atypically in MX204. RE is ETH+PCI
connected, not fabric.

Can you elaborate on the corner cases?

It is true that MX204 is fabricless, like MX80 was. Which ostensibly
is a good thing,
as you could use both fab+wan serdes purely for wan, doubling the wan
density while
halving the average lookup and buffer delay performance

-- 
  ++ytti
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