Refer to the exhibit showing a network diagram with Overlay AS 10666, BGP AS21, BGP AS100, BGP AS20, BGP AS104, R100, VE100, VE104, R104, and various IP prefixes and links. An engineer configured…

The prefix 104.104.104.104/32 originates from R104 (AS 104), enters the OMP fabric via VE104, and is then advertised to VE100. When VE100 redistributes this OMP route to R100, assuming R100 is an external BGP peer, R100 prepends its own AS (100) and then sees the OMP overlay AS (10666). The AS-PATH on R100 therefore becomes '100 10666'.

This path '100 20 104' represents a pure BGP path without including the OMP overlay AS (10666), which is incorrect for a route traversing the SD-WAN fabric.

This path '100 10666 20 104' incorrectly includes AS 20 as part of the primary path for 104.104.104.104/32 to R100, and often OMP simplifies the external AS numbers when advertising routes.

This path '100 10666 104' incorrectly includes AS 104 as a distinct AS in the path after the OMP AS, which isn't how OMP typically modifies the AS-path when originating a route from a BGP domain into the overlay.