why am I lone getting numbers in the second of respectively ( ) set?
Answers: peers: 10 (15) seed: 40 (12)
The 10 and the 40 are how frequent seed and peers you're connected to.
The 15 and the 12 are how abundant seed and peers the tracker (torrent server) say exist.
So contained by the example above, you're connected to 10/15 of the peers, and 40/12 of the seed. You're connected to more seed than the server say exists because of a neat-o point call dht - contained by a nutshell, some peers and seed enjoy told you roughly extra seed that the tracker doesn't know something like.
if you've get something close to:
seed: 0 (10) peers: 0 (50) later you're not connected to anyone all the same.