Suggestions on modifying the default listening port of oracle 1 1g rac.

1. Is your database registered with the local listener? If so, you can log in to your own machine and try it, and then the two DBs can try each other with sqlplus.

sqlplus XXX/xxxx @ xd RAC 2-VIP: 1600/RAC

sqlplus XXX/xxxx @ xd RAC 1-VIP: 1600/RAC

2. There is no absolute relationship between firewall and tnsping. Please check whether there is an online record in listener.log

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