Which command allows traffic to load-balance in an MPLS Layer 3 VPN configuration?

The `multi-paths` command is not a standard BGP command for controlling the number of installed paths for load balancing.

While `maximum-paths ibgp 2` is valid for iBGP paths, `maximum-paths 2` is the more general command for all BGP paths, which applies broadly to MPLS L3 VPN scenarios where both iBGP and eBGP paths might be considered.

The `multi-paths` command is not a valid or commonly used command for configuring path load balancing in Cisco IOS routing.

The `maximum-paths` command configures the maximum number of equal-cost paths that any routing protocol can install into the IP routing table, thereby enabling load balancing. In MPLS L3 VPNs, this allows BGP to install multiple paths for a VPN prefix, facilitating traffic distribution across the network infrastructure.