I think it would be still "autoroute announce" (this is most common) on the headend for the tunnel configured with loose-hops. Only, in this case, the IP Addresses of ASBRs and head-end/tail-end routers would be advertised to other AS.
Sorry, my bad.....just tested this and it wont work. The reason I see is that the VPNv4 label changes at ASBRs during advertisement, but in data-plane the VPNv4 label is never changed at ASBR due to MPLS-TE transport label on top causing the remote-PE to drop traffic.
I think it would only work if PEs in different AS can exchange VPNv4 routes directly, rather than through ASBR.
Introduction: The "external-out enable" command is available for
configuration under the "router ospf process" in case of the IOS-XR
operating system. This command basically enables advertisement of
intra-area routes on the device as external routes in th...
IntroductionIn this article we'll discuss how to troubleshoot packet
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