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Frame (networking)

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157:(TDMA) variants, a frame is a cyclically repeated data block that consists of a fixed number of time slots, one for each logical TDM channel or TDMA transmitter. In this context, a frame is typically an entity at the physical layer. TDM application examples are 93:
before the data is transmitted over the physical layer. A frame is "the unit of transmission in a link layer protocol, and consists of a link layer header followed by a packet." Each frame is separated from the next by an
323:. 2011. quote: "... a start bit and a stop bit to mark the beginning and end of a byte. This is called framing ... Don't confuse this type of framing with the framing used for a packet of bytes on a network." 69:
within the stream of symbols or bits it receives. If a receiver is connected to the system during frame transmission, it ignores the data until it detects a new frame synchronization sequence.
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A packet is usually mapped to a frame; the exceptions are when data link layer fragmentation is being performed, or when multiple packets are incorporated into a single frame.
411: 130: 333: 416: 154: 138: 133:, the eight bits of each individual byte are framed by start and stop bits, the payload data bytes in a network packet 401: 90: 55: 336:. quote: "... one start bit... parity bit ... stop bit ... called framing bits because they frame the data bits." 182: 65:
features consisting of a sequence of bits or symbols that indicate to the receiver the beginning and end of the
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Often, frames of several different sizes are nested inside each other. For example, when using
35: 353: 253: 222: 173:, where the mobile terminal may transmit during some time slots and receive during others. 86: 47: 134: 107: 99: 95: 51: 395: 98:. A frame is a series of bits generally composed of frame synchronization bits, the 202: 197: 54:. In other telecommunications systems, a frame is a repeating structure supporting 320: 379: 375: 366: 347: 307: 303: 299: 295: 291: 287: 283: 279: 275: 266: 247: 192: 243: 119: 158: 78: 17: 187: 169:
used in early cellular voice services. The frame is also an entity for
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by the header and footer, and several packets can be framed with
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David S.Lawyer and Greg Hankins. "Serial HOWTO". Section
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Requirements for Internet Hosts -- Communication Layers
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circuit-switched B-channel, while TDMA examples are
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systems, a frame is a simple container for a single
89:. Frames are the result of the final layer of 8: 357: 257: 214: 149:In telecommunications, specifically in 81:of computer networking, a frame is the 7: 332:MATLAB External Interfaces. Section 25: 349:The Point-to-Point Protocol (PPP) 131:asynchronous serial communication 412:Packets (information technology) 321:"20.4 Forming a Byte (Framing)" 225:. The TCP/IP Guide. 2005-09-20 1: 346:W. Simpson, ed. (July 1994). 155:time-division multiple access 223:"Data Link Layer (Layer 2)" 61:A frame typically includes 433: 310:. 56:time-division multiplexing 352:. Network Working Group. 252:. Network Working Group. 183:Application-layer framing 151:time-division multiplex 145:Time-division multiplex 127:Point-to-Point Protocol 112:Point-to-Point Protocol 378:. Updated by RFC  246:, ed. (October 1989). 27:Data transmission unit 372:Internet Standard 51. 167:Circuit Switched Data 139:frame boundary octets 63:frame synchronization 417:Units of information 334:"Serial Data Format" 274:Updated by RFC  272:Internet Standard 3. 198:Multiplex techniques 171:time-division duplex 116:Fibre Channel frames 104:frame check sequence 374:Obsoletes RFC  40:computer networking 83:protocol data unit 44:telecommunications 402:Computer networks 36:data transmission 16:(Redirected from 424: 386: 370: 361: 359:10.17487/RFC1661 343: 337: 330: 324: 317: 311: 270: 261: 259:10.17487/RFC1122 240: 234: 233: 231: 230: 219: 106:. Examples are 73:Packet switching 21: 432: 431: 427: 426: 425: 423: 422: 421: 392: 391: 390: 389: 345: 344: 340: 331: 327: 318: 314: 242: 241: 237: 228: 226: 221: 220: 216: 211: 179: 147: 108:Ethernet frames 102:payload, and a 87:data link layer 75: 48:packet switched 28: 23: 22: 15: 12: 11: 5: 430: 428: 420: 419: 414: 409: 407:Link protocols 404: 394: 393: 388: 387: 362:. STD 51. 338: 325: 312: 235: 213: 212: 210: 207: 206: 205: 200: 195: 190: 185: 178: 175: 146: 143: 122:modem frames. 114:(PPP) frames, 96:interframe gap 74: 71: 52:network packet 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 429: 418: 415: 413: 410: 408: 405: 403: 400: 399: 397: 385: 381: 377: 373: 368: 365: 360: 355: 351: 350: 342: 339: 335: 329: 326: 322: 316: 313: 309: 305: 301: 297: 293: 289: 285: 281: 277: 273: 268: 265: 262:. STD 3. 260: 255: 251: 250: 245: 239: 236: 224: 218: 215: 208: 204: 201: 199: 196: 194: 191: 189: 186: 184: 181: 180: 176: 174: 172: 168: 164: 160: 156: 152: 144: 142: 140: 136: 132: 128: 123: 121: 117: 113: 109: 105: 101: 97: 92: 91:encapsulation 88: 84: 80: 72: 70: 68: 64: 59: 57: 53: 49: 45: 41: 37: 34:is a digital 33: 19: 383: 371: 348: 341: 328: 315: 271: 248: 238: 227:. Retrieved 217: 203:Overhead bit 148: 124: 76: 67:payload data 60: 31: 29: 193:Jumbo frame 129:(PPP) over 396:Categories 229:2010-01-31 209:References 153:(TDM) and 135:are framed 18:Data frame 244:R. Braden 159:SONET/SDH 79:OSI model 188:Datagram 177:See also 161:and the 38:unit in 85:at the 77:In the 118:, and 100:packet 46:. In 32:frame 380:2153 376:1548 367:1661 308:9293 306:and 304:8029 300:6864 296:6633 292:6298 288:6093 284:5884 280:4379 276:1349 267:1122 163:ISDN 120:V.42 42:and 364:RFC 354:doi 264:RFC 254:doi 398:: 382:. 302:, 298:, 294:, 290:, 286:, 282:, 278:, 141:. 110:, 58:. 30:A 369:. 356:: 269:. 256:: 232:. 20:)

Index

Data frame
data transmission
computer networking
telecommunications
packet switched
network packet
time-division multiplexing
frame synchronization
payload data
OSI model
protocol data unit
data link layer
encapsulation
interframe gap
packet
frame check sequence
Ethernet frames
Point-to-Point Protocol
Fibre Channel frames
V.42
Point-to-Point Protocol
asynchronous serial communication
are framed
frame boundary octets
time-division multiplex
time-division multiple access
SONET/SDH
ISDN
Circuit Switched Data
time-division duplex

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