Go back to 351-001 - CCIE Cisco Certified InterNetworking Expert

Question :-

Which is the reason that H-VPLS is considered more scalable than flat VPLS?
It minimizes signaling overhead by building two separate layers pseudowire meshes.
It minimizes signaling overhead by only requiring a full pseudowire mesh among N-PEs.
It eliminates signaling overhead between the N-PE and U-PE.
It eliminates signaling overhead on core devices.

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