Click the Exhibit button. A provider of MPLS services configures MPLS Layer-3 VPN services for two customers. Each customer has three branch offices that will be interconnected by MPLS Layer-3 VPNs…

Click the Exhibit button. A provider of MPLS services configures MPLS Layer-3 VPN services for two customers. Each customer has three branch offices that will be interconnected by MPLS Layer-3 VPNs. One customer is advertising their IP softwarx-sites using BGP. This customer establishes a backup link directly connecting Site-1 to Site-2. Which BGP attribute can the provider use to prevent routing update loops in the MPLS network?