2.2.4 Peer Names
Protocols and higher-layer applications use Peer Names for publishing endpoint information and to resolve them to endpoint information. A Peer Name MUST be a Unicode string conforming to the following syntax (specified here using Augmented Backus-Naur Form (ABNF) [RFC5234]).
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peername = authority "." classifier authority = "0" / secureauthority secureauthority = 40auchar auchar = DIGIT / %d97-102 classifier = 0*149clchar clchar = %x0001-FFFF ; any non-NULL Unicode character