I have network 18.104.22.168/16 in Singapore. I have two links India to Singapore and India-Sydney. We are receiving 172.16.0.0/16 in India as external type-2 routes fron Sydney and Singapore since it is getting reditributed in Singapore and Sydney both. So to reach Singapore traffic is going through Sydney link also.
Now i want to select Sigapore route as prefered route for 22.214.171.124/16 traffic.
gur_voipcorert3a>sh ip route 126.96.36.199
Routing entry for 188.8.131.52/16
Known via "ospf 4000", distance 110, metric 20, type extern 2, forward metric 50
Last update from 10.139.129.83 on Vlan10, 01:21:42 ago
Routing Descriptor Blocks:
10.139.129.83, from 184.108.40.206, 01:21:42 ago, via Vlan10
Route metric is 20, traffic share count is 1
* 10.139.129.82, from 220.127.116.11, 01:21:42 ago, via Vlan10
"I have two links India to Singapore and India-Sydney. We are receiving 172.16.0.0/16 in India as external type-2 routes fron Sydney and Singapore since it is getting reditributed in Singapore and Sydney both."
Why would your ASBRs in 2 different cities be advertising the same /16 prefix?
And what does that OE2 route for 172.16.0.0 in India have to do with reaching 18.104.22.168 in Singapore?
"So to reach Singapore traffic is going through Sydney link also."
If you cant make changes to the Singapore or Sydney routers, you're out of luck because you cannot influence how India will see the 172.16.0.0/16 route coming to it by making configuration changes in India. This is not BGP, where you can manipulate attributes for any inbound/outbound prefix you want.
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