well this is interesting.

i have a rb600a unit. i upgraded it to 5.9 and all went fine.
except in the interface settings i am missing a lot of options.
for example theres no master port option to create a switch

theres just so many options missing.

why?

The RB600 has no switch chip. Why you want to set master port?

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The RB600 has no switch chip. Why you want to set master port?

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interesting. yet it still works as a switch by grouping all ports into a bridge.

The RB600 has no switch chip. Why you want to set master port?

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interesting. yet it still works as a switch by grouping all ports into a bridge.

Yes. But this is done in Software. The master port setting in ethernet is to use
the hardware switch of some RB Models with builtin switch chip.