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RIB and FIB

RIB and FIB

Alexandr_P
Valued Contributor
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 2

Alexandr_P
Valued Contributor
RIB - 25K IPv4 routes for X460 (from RelNotes 15.7)

Right?

Stephane_Grosj1
Extreme Employee
Yes.

FIB = unique route programmed in the hardware
RIB = multiple times the same route, from protocols, in memory
GTM-P2G8KFN