So, I would say the export policy had no effect at all.
But the same policy filters as desired on the inbound side. Same policy, applied to the Receiver as an import policy. That means the receiver filters out all the routes that have a 110047427 at the start of the AS path.
Yes it must be set as an export policy to the neighbors, because you are looking for routes that have an origin in AS 110047427 and rejecting them, meaning they should not be advertised to the neighbors. I should have been more careful. And I think you are correct that this would mean the same. I would say try this for the AS path. I have not worked on the routing protocol for a while, and I do not have a lab for testing and making sure now. Try it this way instead. I am not sure why the first time did not work. May be it should have been;
"110047427*" but if it fails to achieve the objective, then try this
If I am not mistaken, the . represents a single AS, but I will research later.
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