Index_U

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U

UDP (User Datagram Protocol)

broadcast client, 418–419

data framing, 116–120, 147–149

datagram server/client

C language, 294–298

Java, 320–325

Perl, 369–371

Python, 347–349

Ruby, 391–393

Tcl, 413–415

described, 9

initial datagrams disappearing, 150

vs. TCP, 140

UDPSocket class methods (Ruby), 242

Unconnected socket functions, 168–169

URL class for HTTP (Java), 193–194

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