Hello
First one needs to remember that it is always the sender that ultimately
decides which path to use. You can use route-map or import policy to
override local pref for each matched received prefix to steer exactly which
ISP you want to use on a per prefix basis. But so can everyone else.
Say
On Friday, 21 May, 2021 16:13, "nanoguser100 via NANOG" said:
> Correct me if I'm wrong here but I *could* take full table + AS on B
> meaning
> the traffic will prefer 'B' due it it having a more specific route since I'm
> only
> taking default from A (despite local pref). That will
On Fri, 21 May 2021 at 17:13, nanoguser100 via NANOG wrote:
> If I'm unable to do that will most provider prepend on your behalf so that
> ISP-A would add the prepends for only?
For this part, you will have to investigate which BGP
standard/extended/large communities your ISP-A/B supports.
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