Yeah, here is my topology
CE(SPK1)----------PE(SP1)------------------ PE-HUB(vrf-hub)------------------CE(HUB)
PE-HUB(vrf-spk) ----------------------CE(HUB)
From CE(SPK1) I advertised a route 10.10.10.1 as LSA Type 1, of course PE-SP1 will receive this route as LSA Type 1, and it advertises this route (10.10.10.1) as MP-BGPVPN to PE(HUB). And CE-HUB will obtain this route.
In theory, this route (10.10.10.1) will be advertised to PE-HUB as LSA Type 3, but with Junos, I see it will be LSA Type 5 ???
And if I change some thing at PE-HUB, it will be LSA TYpe 3, but in PE-HUB vrf-spk, it has only LSA withou route. I mean, ospf database cannot caculate route based on this LSA.