If i advertise 2 prefixes,let say 18.104.22.168/24 and 22.214.171.124/24 to two diffrent ISP-A and ISP-B trough two difrrent AS,100 aggined by ISP-A to us and AS200 owned by us.ISP-B is primary.Will my traffic fallover to ISP-A in case of link failure to ISP-B?.
You can advertise your own prefixes and ASN to both ISP, but you cannot advertise ISP-A prefix and ASN to ISP-B.
Since you have your own prefixes and ASN, to make things simple, why don't return the prefix and ASN to ISP-A and migrate the hosts using ISP-A IP Address to your own IP Address? Using ISP-A prefix and ASN, you will always be tied with them.
Bit correction, I will have 1 bgp peering trough AS100 to ISP-A advertising 126.96.36.199/24 and 188.8.131.52/24, and 2nd through AS 200 to ISP-B adverting 184.108.40.206/24, I only need redundency to 220.127.116.11/24. and mu worry is 1.1.1./0/24 is adverise to two isp's through 2 diffrent AS, will it failover?
Yes its ok to get rid of ISP-A own prefis, but i has been used and will take us long time to migrate,
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