Will a edge router in an mpls network keep both FIB and LFIB?....
The PE3 and PE7 routers will both have a Label Forwarding Information Base LFIB, and they will both have a FIB (thanks to CEF) for the global routing table and for each of the VRFs too.
Here is a good discussion regarding their relationships regarding the FIB and LFIB:
Just to add to what Keith stated, remember if you don't have FIB you won't be able to impose labels.
CCSI#30832, CCIE# 12410 (R&S, SP, Security)
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