How to know if my replicat is Integrated or not ?

In the below output of Report file of the replicat process, you see the message "Integrated replicat successfully attached to inbound server..." That means your replicat is integrated not the old one ....

GGSCI (node7.example.com as oggadmin@orcl) 62> view report rep4


***********************************************************************
                 Oracle GoldenGate Delivery for Oracle
   Version 12.1.2.1.0 OGGCORE_12.1.2.1.0_PLATFORMS_140727.2135.1_FBO
   Linux, x64, 64bit (optimized), Oracle 12c on Aug  7 2014 10:47:47
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Output truncated...
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2016-06-02 00:59:07  INFO    OGG-02530  Integrated replicat successfully attached to inbound server OGG$rep4.