An Investigation into Transport Protocols and Data Transport ...

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List of Figures 14 8.25 Fairness between two competing TCP flows with asymmetric network conditions. The first flow is set to 162ms RTT and the second flow to that as shown (Bottleneck Queuesize set to 20% BDP of the low latency flow). . . . . . . . . . . . . . . . 172 8.26 Standard TCP under asymmetric network conditions (100Mbit/sec capacity, with Flow 1 experiencing 162ms RTT and Flow 2 experiencing 42ms RTT, queuesize 20% BDP of 42ms). . . . . . 173 8.27 Aggregate Goodput of two competing TCP flows with asymmetric network conditions. The first flow is set to 162ms RTT and the second flow to that as shown (Bottleneck Queuesize set to 20% BDP of the high latency flow). . . . . . . . . . . . 174 8.28 Fairness between two competing TCP flows with asymmetric network conditions. The first flow is set to 162ms RTT and the second flow to that as shown (Bottleneck Queuesize set to 20% BDP of the high latency flow). . . . . . . . . . . . . . . . 175 8.29 ScalableTCP under asymmetric network conditions (100Mbit/sec capacity, with Flow 1 experiencing 162ms RTT and Flow 2 experiencing 16ms RTT). . . . . . . . . . . . . . . . . . . . . . . 175 8.30 H-TCP under asymmetric network conditions (100Mbit/sec capacity, with Flow 1 experiencing 162ms RTT and Flow 2 experiencing 22ms RTT. Bottleneck queue size at 20% BDP of the 162ms flow). . . . . . . . . . . . . . . . . . . . . . . . . 176 8.31 Aggregate Goodput of a Standard TCP flow competing against a New-TCP flow with symmetric network conditions (Bottleneck Queuesize set to 20% BDP). . . . . . . . . . . . . . . . . 177
List of Figures 15 8.32 Friendliness between a Standard TCP flow competing against a New-TCP flow with symmetric network conditions (Bottleneck Queuesize set to 20% BDP). . . . . . . . . . . . . . . . . 178 8.33 Standard TCP competing against ScalableTCP under symmetric network conditions (100Mbit/sec capacity, 82ms RTT, 20% BDP queuesize). . . . . . . . . . . . . . . . . . . . . . . . 178 8.34 Standard TCP competing against FAST under symmetric network conditions (100Mbit/sec capacity, 82ms RTT, 20% BDP queuesize). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179 8.35 Standard TCP competing against FAST under asymmetric network conditions (250Mbit/sec capacity, 42ms RTT, 20% BDP queuesize). . . . . . . . . . . . . . . . . . . . . . . . . . 179 8.36 Standard TCP competing against H-TCP under asymmetric network conditions (250Mbit/sec capacity, 20% BDP queuesize).180 8.37 Standard TCP competing against BicTCP under asymmetric network conditions (250Mbit/sec capacity, 20% BDP queuesize).181 8.38 Standard TCP competing against HSTCP under asymmetric network conditions (250Mbit/sec capacity, 20% BDP queuesize).181 9.1 Response Function of New-TCP over dedicated test networks. 194 9.2 Quantisation of cwnd. . . . . . . . . . . . . . . . . . . . . . . 195 9.3 Goodput of a single TCP flow against various Background Loads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 9.4 Goodput of 10 New-TCP flows against various CBR Background Loads. . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 9.5 Fairness distributions between 10 New-TCP flows against various Background Loads on MB-NG. . . . . . . . . . . . . . . . 199
Page 1 and 2: An Investigation into Transport Pro
Page 3 and 4: Contents List of Figures . . . . .
Page 5 and 6: Contents 5 4.6 Summary . . . . . .
Page 7 and 8: Contents 7 8.2 Test Calibration . .
Page 9 and 10: Contents 9 10.3.5 Further Tests . .
Page 11 and 12: List of Figures 11 5.7 Effect on cw
Page 13: List of Figures 13 8.16 Unfairness
Page 17 and 18: List of Figures 17 9.19 Dynamic swi
Page 19 and 20: List of Figures 19 D.1 Internet pat
Page 21 and 22: List of Tables 21 A.1 Hardware and
Page 23 and 24: Publications And Workshops Some of
Page 25 and 26: 1.2. Research Scope 25 • Identifi
Page 27 and 28: 1.4. Dissertation Outline 27 • Id
Page 29 and 30: Chapter 2 High Energy Particle Phys
Page 31 and 32: 2.2. Analysis Methods 31 the data i
Page 33 and 34: 2.3. Data Volumes and Regional Cent
Page 35 and 36: 2.3. Data Volumes and Regional Cent
Page 37 and 38: 2.4. Data Transfer Requirements 37
Page 39 and 40: 2.5. Summary 39 data, the most impo
Page 41 and 42: 3.1. Data Intercommunication 41 mov
Page 43 and 44: 3.2. Network Monitoring 43 Whilst l
Page 45 and 46: 3.2. Network Monitoring 45 Internet
Page 47 and 48: 3.2. Network Monitoring 47 1 0.8 Bo
Page 49 and 50: Chapter 4 Transmission Control Prot
Page 51 and 52: 4.1. Overview 51 Throughput Delay L
Page 53 and 54: 4.2. Protocol Description 53 is dep
Page 55 and 56: 4.2. Protocol Description 55 As a r
Page 57 and 58: 4.3. Congestion Control 57 excessiv
Page 59 and 60: 4.3. Congestion Control 59 probe fo
Page 61 and 62: 4.4. Retransmission Timeout 61 tion
Page 63 and 64: 4.5. TCP Variants 63 mechanisms are
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4.5. TCP Variants 65 connection ini
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4.5. TCP Variants 67 20 15 cwnd sst
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4.5. TCP Variants 69 no more acks t
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4.5. TCP Variants 71 [Hoe96]. In bo
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4.5. TCP Variants 73 TCP Timestamps
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4.6. Summary 75 traffic for a parti
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Chapter 5 TCP For High Performance
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5.1. TCP Hardware Requirements 79 G
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5.1. TCP Hardware Requirements 81 1
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5.1. TCP Hardware Requirements 83 C
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5.2. TCP Tuning & Performance Impro
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5.3. Network Aid in Congestion Dete
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5.3. Network Aid in Congestion Dete
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5.4. Analysis of AIMD Congestion Co
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5.5. Summary 109 5.5 Summary Even t
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6.1. Survey of New-TCP Algorithms 1
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6.2. Discussion and Deployment Cons
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6.3. Summary 133 6.3 Summary The re
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Chapter 7 Testing Framework for the
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7.1. Metrics 137 various New-TCP al
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7.1. Metrics 139 assuming equilibri
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7.2. Environment 141 of packets in
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7.2. Environment 143 T 0 B, T T 1 F
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Chapter 8 Systematic Tests of New-T
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8.1. Methodology 147 fed into the d
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8.1. Methodology 149 Various other
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8.2. Test Calibration 151 Goodput (
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8.2. Test Calibration 153 cwnd and
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8.2. Test Calibration 155 100 1 Agg
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8.2. Test Calibration 157 1000 FAST
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8.3. Results 159 10 100 Total Throu
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8.3. Results 161 14 12 HSTCP 1 α H
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8.3. Results 163 cwnd (packets) 120
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8.3. Results 165 Fraction Bytes Ret
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8.3. Results 167 1200 1000 HTCP 1 H
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8.3. Results 169 This is due to the
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8.3. Results 171 4000 3500 3000 HTC
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8.3. Results 173 800 700 600 Standa
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8.3. Results 175 1 1 Fairness Ratio
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8.3. Results 177 10 100 Total Throu
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8.3. Results 179 1000 Standard TCP
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8.3. Results 181 600 500 Standard T
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8.4. Discussion of Results 183 Asym
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8.4. Discussion of Results 185 New-
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8.4. Discussion of Results 187 Asym
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8.5. Summary 189 The importance of
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9.1. Transfer Tests Across Dedicate
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9.2. Preferential Flow Handling Usi
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9.3. Internet Transfers 229 can cau
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9.3. Internet Transfers 231 Stanfor
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9.3. Internet Transfers 233 10 1 St
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9.3. Internet Transfers 235 1000 90
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9.3. Internet Transfers 237 Fractio
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9.3. Internet Transfers 239 10000 c
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9.3. Internet Transfers 241 achieve
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9.4. Summary 243 performance of sin
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9.4. Summary 245 Nevertheless, a Di
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10.1. Summary 247 PCs. But at 1Gb/s
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10.2. New-TCP Suitability Study 249
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10.2. New-TCP Suitability Study 251
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10.3. Future Directions 253 low ove
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10.3. Future Directions 255 porates
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10.3. Future Directions 257 A more
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10.4. Conclusion 259 This dissertat
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A.1. Data Storage 261 with the choi
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A.1. Data Storage 263 gether with h
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A.1. Data Storage 265 The virtual m
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A.1. Data Storage 267 Read Speed (M
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A.1. Data Storage 269 Read Speed (M
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A.1. Data Storage 271 1600 1600 140
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A.2. Network Interface Cards 273 la
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A.2. Network Interface Cards 275 de
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A.2. Network Interface Cards 277 of
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A.2. Network Interface Cards 279 PC
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A.2. Network Interface Cards 281 70
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A.2. Network Interface Cards 283 Th
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A.2. Network Interface Cards 285 20
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A.2. Network Interface Cards 287 ha
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B.2. Wide Area Network Tests 289 Da
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C.3. DataTAG 291 Cisco 7606 Cisco 7
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Appendix D Network Paths of Interne
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295 ham02gva.datatag.org:192.91.239
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Bibliography 297 [All03] [AMA + 99]
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Bibliography 299 [BPSK96] H. Balakr
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Bibliography 301 [DC02] [ea02] [FF9
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Bibliography 303 [Flo03] [Flo04] S.
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Bibliography 305 [Hoe96] [IET] [Jac
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Bibliography 307 [KRB05] [Lah00] [L
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Bibliography 309 [MHR03] [MM96] M.
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Bibliography 311 [Pos81a] J. Postel
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Bibliography 313 [tePM] IEPM Intern
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