County IT dual-homes a city-hall CE to two PEs so a single PE failure does not isolate the site. What design outcome does that multi-homing primarily provide?
Select an answer to reveal the explanation.
Short Explanation
Two PE docks for one city-hall CE means if one loading bay burns down, the other still ships. That is PE resiliency — not a free pass to skip RTs or LDP. Keep both PE-CE routing sessions healthy and let the CE prefer or fail over cleanly.
Full Explanation
Multi-homing a CE to two PEs provides edge redundancy so VPN service survives a PE or attachment failure while the alternate PE continues VPNv4 and underlay LSP connectivity. It does not invent extranet policy, remove the need for label transport, or turn the CE into a core P device. Design PE-CE routing (eBGP/IGP) for clean failover and avoid asymmetric black holes during convergence.