最後更新: 2020-08-21

utorrent Peer tag Flags

[Up/Down]

• D = Currently downloading (interested and not choked)
• d = Your client wants to download, but peer doesn't want to send (interested and choked)
• U = Currently uploading (interested and not choked)
• u = Peer wants your client to upload, but your client doesn't want to (interested and choked)

[choke]

• O = Optimistic unchoke
• S = Peer is snubbed(peer downloads or uploads too slowly)
• I = Peer is an incoming connection
• K = Peer is unchoking your client, but your client is not interested
• ? = Your client unchoked the peer but the peer is not interested

[從那裡認識]

• X = Peer was included in peerlists obtained through Peer Exchange (PEX) or an IPv6 peer told you its IPv4 address.
• H = Peer was obtained through DHT.

[Encryption]

• E = Peer is using Protocol Encryption (all traffic)
• e = Peer is using Protocol Encryption (handshake)

[Protocol]

• P = Peer is using uTorrent uTP

[Other]

• L = Peer is local (discovered through network broadcast, or in reserved local IP ranges)

magnet URI

URIs can contain multiple parameters, in any order, separated from each other by "&"

magnet:?xl=[Size in Bytes]&dn=[file name (URL encoded)]​&xt=urn:tree:tiger:[ TTH hash (Base32) ]

 * xl (eXact Length): size in bytes

 * dn (Display Name): a filename to display to the user, for convenience

 * xt ("exact topic"): URN containing file hash (most important part of a Magnet link)

xt=urn:btih:[ BitTorrent Info Hash (Hex) ]

urn = Uniform Resource Name

URNs are globally unique persistent identifiers assigned within defined namespaces

與 URL 不同, 因為它 1. location-independent, 2. persistent

btih = BitTorrent Info Hash

SHA-1 hash sums of the "info" sections of BitTorrent metafiles as used by BitTorrent

xt=urn:ed2k:[ ED2K Hash (Hex) ]

tr (Address tracker)

Tracker URL; used to obtain resources for BitTorrent downloads without a need for DHT support.(URL encoded)

DHT