how to add a new brocade switch to their smi-s agent?

we are adding a brocade switch to storage essentials 9.6.
There is already a smi-s in the storage essentials and it is working fine.
I opened the server installed the smi-s, but found nothing. and the http://ip:5898 is not accessible.

this is the first time I configure smi-s, please give me a help!