Question : Please help me out on cluster  logs ...

Jun 00:55:27 server1 SAPPID_45[1455]: Unable to open trace file sapstartsrv.log. (Error 11 Resource temporarily unavailable) [ntservsserver.cpp 1009]

Answer : Please help me out on cluster  logs ...

well, yoiur routing fine.  Kinda figured that by https working.  Port 80 is being blocked somewhere.  None of your machines can get to http right?  servers or clients inbound or outbound?  Is there a firewall somewhere?  What are these 172.x.x.x devices?