OMG...
this will not work...
You can't do 2 parallel ethernet connections between 2 switches (the right one and built-in in NVR). This will create loop and one of them will be blocked. And right switch is not required..
Simply connect left switch to any POE port on NVR. Plug&play network functionality on NVR will not work, so You must manually configure those cams to free IPs in NVR private network segment. Or first connect cams to NVR directly, configure them using plug&play on NVR, move them to switch, probably deleting and adding one more time but in manual mode using theirs IPs given by NVR..
ps. you can also connect this switch to Your private network (your router) and use 192.168.1.xxx ip addresses for those cams..