Folks, can you clarify what the "aggregate-address <> summary" could do in this case? I already read the documentation but it is not clear to me.
ip prefix-list My_Prefix seq 65 permit 220.127.116.11/18 le 32
ip prefix-list My_Prefix seq 100 deny 0.0.0.0/0 le 32
route-map PROJ1_OSPF100_REDISTR permit 10
description limit NEWDEVICE advertisement
match ip address prefix-list My_Prefix
router bgp 80342
address-family ipv4 vrf PROJ1
no redistribute ospf 100 vrf PROJ1
redistribute ospf 100 vrf PROJ1 route-map PROJ1_OSPF100_REDISTR
aggregate-address 18.104.22.168 255.255.192.0 summary-only
the aggregate-address creates a summarized route 22.214.171.124 with mask 255.255.192.0 and it will suppress the component routes (summary-only)
The summary route is created if at least a component route exists in the BGP table.
In your case this can be the result of redistribution of OSPF into BGP
As you can see prefixes within 126.96.36.199/18 are accepted in the route-map used to redistribute OSPF routes into BGP (prefix-list)
Hope to help