RIB and FIB


Userlevel 6
Hello, colleagues!

Whether I understand the theory?

For example X460 switch.
FIB - forwarding infromation base = Data Plane = TCAM = ASIC = hardware = 12K IPv4 routes
RIB - routing information base = Control Plane = CPU = software = 25K IPv4 routes

Am I right or not?

Thank you!

2 replies

Userlevel 7
Yes.

FIB = unique route programmed in the hardware
RIB = multiple times the same route, from protocols, in memory
Userlevel 6
RIB - 25K IPv4 routes for X460 (from RelNotes 15.7)

Right?

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