?: your client unchoked the peer but the peer is not interested D: currently downloading from the peer (interested and not choked) d: your client wants to download, but peer doesn’t want to send (interested and choked) E: peer is using Protocol Encryption (all traffic) e: peer is using Protocol Encryption (handshake) F: peer was involved in a hashfailed piece (not necessarily a bad peer, just involved) H: peer was obtained through DHT h: peer connection established via UDP hole-punching I: peer established an incoming connection K: peer unchoked your client, but your client is not interested L: peer has been or discovered via Local Peer Discovery O: optimistic unchoke P: peer is communicating and transporting data over uTP S: peer is snubbed U: currently uploading to the peer (interested and not choked) u: the peer wants your client to upload, but your client doesn’t want to (interested and choked) X: peer was included in peer lists obtained through Peer Exchange (PEX)