Friday, October 22, 2021

Query regarding bgp path selection

So I have been labbing bgp quite a bit recently, I have a scenario where say there is 1 customer edge router and say 5 provider routers, how do you influence path selection so that bgp knows to select only specific routes based on say some requirements from the customer router in the outbound direction (and inbound as well) I know that you can use BGP weight and as path prepend attributes (have seen lots of examples on these 2 attributes while googling) but which attribute is used for which direction (outbound/inbound) can they both be used for either one of outbound or inbound? Also any configuration examples of such a scenario (I'm pretty sure this type of scenario is very common in the real world) would be very helpful!

Thank you in advance.



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