If the other server is initiating pull-push replication then you would see only session activity for that server when you do a show tasks at your server (if you’re logging session activity, that is)
You might take a look at your server log under Usage/By User to see if anything looks unusual. Also check out the Replication view of the log file for your server and the same view in the log db of the servers you suspect are replicating with you.
Usually replication does not consistently consume large amounts of bandwidth if everything is configured properly.