Which command allows traffic to load-balance in an MPLS Layer 3 VPN configuration?
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A. B. C. D.C.
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nx-os/mpls/configuration/guide/mpls_cg/mp_vpn_multipath.htmlThe command that allows traffic to load-balance in an MPLS Layer 3 VPN configuration is the "maximum-paths" command with the "ibgp" keyword.
Option B, "maximum-paths 2," enables the router to use up to 2 equal-cost paths for load balancing purposes, but it does not specifically apply to MPLS Layer 3 VPN configurations.
Option A, "multi-paths eibgp 2," is not a valid command.
Option D, "multi-paths 2," is also not a valid command.
The "maximum-paths ibgp 2" command is used to allow the router to use up to 2 equal-cost paths for load balancing in an MPLS Layer 3 VPN configuration. This command is used when there are multiple paths available between two MPLS PE (Provider Edge) routers, and you want to load balance the traffic across those paths.
By default, Cisco IOS software does not allow load balancing across multiple paths for traffic that belongs to the same Virtual Routing and Forwarding (VRF) instance. To enable load balancing across multiple paths, you must configure the maximum-paths command with the ibgp keyword, which allows the router to use multiple BGP paths for load balancing.
For example, the following command enables load balancing across up to 2 equal-cost paths in an MPLS Layer 3 VPN configuration:
scssRouter(config-router)# maximum-paths ibgp 2 This command enables load balancing for the BGP paths in the same VRF instance.