implementing cisco quality of service student guide 2 3

Ngày tải lên: 04/07/2014, 01:20

Ngày tải lên: 27/06/2014, 20:20

Ngày tải lên: 08/08/2014, 06:20

Ngày tải lên: 16/11/2014, 19:57

... w i l flow 1 weight 2 flow 2 weight 1 flow 3 weight 3 l 1 /3 1/6 1 /2 ∑ = i i w w i Cx C : link capacity Queue Management 17 Priority Queue o Several queues of different priority l source may mark ... eg. ToS field of IP o Problem l how to avoid everybody sendinghigh priority packets? Queue Management 1 Quality of Service in IP Networks CH-1015 Ecublens http://icawww.epfl.ch Prof. Jean-Yves ... saves 2 s ì 0.5 MB/s = 1 MB rate 1 MB/s 2 MB/s 3 MB/s time 1 s 2 s 3 s 4 s Flow A Flow B Queue Management 19 Characteristics o It modifies the optimal strategy of sources l FIFO: be greedy - send...

Ngày tải lên: 06/04/2013, 11:05

... PSQM/QoS 0 76 1. 43 76 1. 43 40 23 3 1.94 106 1.5 60 24 2 2. 1 104 1. 43 75 28 0 7 1 02 1.51 90 30 0 9 104 1.51 100 35 0 10 105 1.51 Figure 9-7. Graph of Test A Results 1 62 For basic CAR ... ip address 1 92. 168. 121 .18 25 5 .25 5 .25 5 .24 8 no ip mroute-cache ip rtp header-compression encapsulation ppp ! Frame Relay ! interface Serial0/0 ip 1 92. 168. 120 .10 25 5 .25 5 .25 5.0 encapsulation ... not requiring special network services). Values are 16, 32 , 64, 128 , 25 6, 5 12, 1 024 , 20 48, and 4096. The default is 25 6. o reservable-queues—(Optional) Number of reservable queues used for...

Ngày tải lên: 30/09/2013, 05:20

Ngày tải lên: 18/10/2013, 12:15

... Panel FP 3: 1 RP 3: 1 Host 1 Host 2 Host 3 BTS Sector 1 Interface Panel FP 2: 1 RP 2: 1 Host 4 Host 5 Remote 1 Remote 2 Remote 3 Remote 4 Remote 5 A N N! B= i i! i=0 N A ∑ Improving Grade of Service ... Employer 1 021 14AE 1/06 Revision © 20 02, 20 04, 20 06 ADC Telecommunications, Inc. All Rights Reserved Web Site: www.adc.com From North America, Call Toll Free: 1-800 -36 6 -38 91 ã Outside of North ... Call Toll Free: 1-800 -36 6 -38 91 ã Outside of North America: +1-9 52- 938 -8080 Fax: +1-9 52- 917- 32 3 7 ã For a listing of ADC’s global sales office locations, please refer to our web site. WHITE PAPER ...

Ngày tải lên: 10/12/2013, 19:15

... the service policy named gary. http://www .cisco. com/univercd/cc/td/doc/product/software/ios 120 / 120 newft/ 120 limit/ 120 xe/ 120 xe5/mqc/mcli.htm Copyright â 20 00, Cisco Systems, Inc. 44 Quality of Service Signaling Quality ... Service Signaling Quality of Service Signaling â 20 00, Cisco Systems, Inc. www .cisco. com econ_ 038 6_09_001.ppt Copyright â 20 00, Cisco Systems, Inc. 40 â 20 00, Cisco Systems, Inc. www .cisco. com econ_ 038 6_09_010.ppt Keep ... host. http://www .cisco. com/univercd/cc/td/doc/product/software/ios 121 / 121 cgcr/qos_c/qcprt5/qcdrsvp .htm Copyright â 20 00, Cisco Systems, Inc. 23 â 20 00, Cisco Systems, Inc. www .cisco. com econ_ 038 6_09_010.ppt Keep...

Ngày tải lên: 11/12/2013, 14:15

... module. http://www .cisco. com/univercd/cc/td/doc/product/software/ios 120 / 120 newft/ 120 t/ 120 t5/saaoper.htm#xtocid20 32 5 1 Copyright â 20 00, Cisco Systems, Inc. 23 â 20 00, Cisco Systems, Inc. www .cisco. com Econ_ 038 5_ 02_ 010.ppt Keep ... http://www .cisco. com/univercd/cc/td/doc/product/software/ios 120 / 120 newft/ 120 t/ 120 t3/ipatmcs2.htm Copyright â 20 00, Cisco Systems, Inc. 2 â 20 00, Cisco Systems, Inc. www .cisco. com Econ_ 038 5_ 02_ 010.ppt Keep All Graphics ... in a Cisco IOS software T release: 12. 0(5)T. http://www .cisco. com/univercd/cc/td/doc/product/software/ios 120 / 120 newft/ 120 t/ 120 t5/cbwfq.htm Copyright â 20 00, Cisco Systems, Inc. 22 â 20 00, Cisco...

Ngày tải lên: 11/12/2013, 14:15

... router. © 20 00, Cisco Systems, Inc. 21 © 20 00, Cisco Systems, Inc. www .cisco. com econ _38 7_05_010.ppt © 20 00, Cisco Systems, Inc. 5 © 20 00, Cisco Systems, Inc. www .cisco. com econ _38 7_05_010.ppt Need ... achieving QoS. © 20 00, Cisco Systems, Inc. 1 © 20 00, Cisco Systems, Inc. Campus Quality of Service © 20 00, Cisco Systems, Inc. 17 © 20 00, Cisco Systems, Inc. www .cisco. com econ _38 7_05_010.ppt Campus ... Layer 2 or at Layer 3 as follows: ã At Layer 2 using the 3 bits in the 8 02. 1p field (referred to as class of service or CoS), which is part of the 8 02. 1Q tag ã At Layer 3 using the 3 bits of DSCP...

Ngày tải lên: 11/12/2013, 14:15

... queuing 24 .15 Figure 24 .9 Congestion avoidance, additive increase 24 . 23 24 -5 QUALITY OF SERVICE 24 -5 QUALITY OF SERVICE Quality of service (QoS) is an internetworking issue Quality of service ... 24 .33 Figure 24 .21 Token bucket 24 .29 Figure 24 .19 Leaky bucket 24 .20 Figure 24 . 12 BECN 24 .24 Figure 24 .15 Flow characteristics 24 .18 Figure 24 .10 TCP congestion policy summary 24 .28 Figure 24 .18 ... section: 24 .9 Figure 24 .5 Congestion control categories 24 .27 Figure 24 .17 Priority queuing 24 .22 Figure 24 .14 Four cases of congestion 24 .2 24-1 DATA TRAFFIC 24 -1 DATA TRAFFIC The main focus of...

Ngày tải lên: 06/03/2014, 12:20

... 1 02 5.8 Further reading 105 5.9 References 106 6 Quality of service 107 6.1 Introduction 107 6 .2 Routing in mobile ad hoc networks 110 6 .3 Routing with quality of service constraints 1 12 6.4 Quality ... independent. 1.5 Quality of service All the vulnerabilities enumerated in Section 1 .3 above are potential sources of service impairment in ad hoc networks and hence may degrade the ‘ quality of service ’ ... associated with providing quality of service (QoS)in ad hoc networks. It should be pointed out that security and quality of service are two distinct attributes that are independent of each other in general....

Ngày tải lên: 25/03/2014, 12:07

... percentage of body fat (SD), % 38 .2 (9 .2) 36 .0 (7.1) 0.068 Mean VO 2 peak (SD), mL/kg·min 24 .1 (5.1) 21 .2 (5.1) < 0.001 Mean total cholesterol level (SD), mg/dL 21 5 .2 (37 .5) 178.8 (40 .2) < ... 86.4 ( 13. 5) 85.6 (14 .2) 0.656 Role emotional 87.7 (24 .5) 84.7 (28 .8) 0.411 Role physical 89 .3 (20 .0) 82. 8 (29 .1) 0.055 Social function 93. 3 ( 12. 9) 89 .3 (18.8) 0.066 Vitality 68.8 (16.1) 63. 5 (19.5) ... health - 12. 84 < 0.001 Mental health -1.84 0 .38 8 Physical function -1 .28 0.5 72 Role emotional -4.86 0 .25 9 Role physical -8.61 0. 035 Social function -2. 83 0 .28 2 Vitality -5.48 0.0 62 Physical...

Ngày tải lên: 18/06/2014, 19:20

... Communications. 23 (5):1067–1084 (20 05) 2. IWH Ho, SC Liew, “Impact of Power Control on Performance of IEEE 8 02. 11 Wireless Networks”. IEEE Trans on Mobile Computing. 6(11): 124 5– 125 8 (20 07) 3. S Toumpis, ... loads in Figure 12. While for an offered traffic of 3 Mbit/s all schemes achieve similar good fairness va lues, for high traffic 0 1 2 3 4 5 6 7 8 0 0.05 0.1 0.15 0 .2 0 .25 0 .3 0 .35 0.4 0.45 0.5 Aggregate ... 5(8) :22 28 22 41 (20 06) 4. S Verdu, Multiuser Detection. (New York, NY: Cambridge University Press, 1998) 5. S Verdu, Computational Complexity of Optimum Multiuser Detection”. Algorithmica. 4 (3) :30 3 31 2...

Ngày tải lên: 21/06/2014, 03:20

... 1 /2 QPSK 1 /2 QPSK 3/ 4 16-QAM 1 /2 16-QAM 3/ 4 64-QAM 2/ 3 64-QAM 3/ 4 1/ 32 2. 92 5. 82 8. 73 11.64 17.45 23 .27 26 .18 1/16 2. 82 5.65 8.47 11 .29 16.94 22 .59 25 .41 1/8 2. 67 5 .33 8.00 10.67 16.00 21 .33 ... Table 26 6 of IEEE 8 02. 16e amendment of the standard (Aymen & Loutfi, 20 08). Modulation Codification rate SNR(dB) BPSK 1 /2 3. 0 QPSK 1 /2 6.0 3/ 4 8.5 16QAM 1 /2 11.5 3/ 4 15.0 64QAM 2/ 3 ... 21 .33 24 .00 1/4 2. 40 4.80 7 .20 9.60 14.40 19 .20 21 .60 Table 3. Data rates for different MCSs and G values (Nuaymi, 20 07). As it can be seen in the Table 3, the highest order modulations offer...

Ngày tải lên: 21/06/2014, 05:20

... Journal Vol. 15, No. 4, pp. 576-5 83. Quality of Service and Resource Allocation in WiMAX 100 0 500 1000 1500 20 00 25 00 30 00 35 00 30 0 800 1400 1900 24 00 29 00 34 00 Throughput Traffic Load UGS ... on ICC, pp. 36 3 _36 8 Vol. 1. [18] Nortel Networks,Introduction to quality of service (QoS)(September 20 08), Nortel NetworksWebsite, 20 03. [Online]. Accessed on 1st of September 20 08. [19] C.F. ... (Dynamic Service Addition) , and DSC (Dynamic Service Change). The implemented PHY is OFDM. Lot size(byte) Channel coding modulation 108 3/ 4 64-QAM 96 2/ 3 64-QAM 36 3/ 4 QPSK 24 1 /2 QPSK...

Ngày tải lên: 21/06/2014, 05:20

... Investigation 5 11 0 0 .2 0.4 0.6 0.8 1 12 14 16 18 20 22 24 26 28 30 32 P WiFi TCP level perceived throughput [Mb/s] WLAN and WiMax, simulation WLAN and WiMax, analitical Fig. 3. TCP layer throughput ... and its evolutions have been included as part of 3GPP specifications ((3GPP-TS- 43. 318, 20 07) and (3GPP-TR- 43. 9 02, 20 07)) to enable the integration of cellular technologies and other RATs. It appears ... 54(6) : 131 0–1 32 2 . 128 Quality of Service and Resource Allocation in WiMAX Downlink Resource Allocation and Frequency Reuse Schemes for WiMAX Networks 19 In M. Pischella & J C. Belfiore (20 09),...

Ngày tải lên: 21/06/2014, 05:20

... corrigendum 1, IEEE Std 8 02. 16e -20 05 and IEEE Std 8 02. 16 -20 04/Cor 1 -20 05 (Amendment and Corrigendum to IEEE Std 8 02. 16 -20 04) pp. 1 – 822 . IEEE8 02. 21 (20 10). URL: http://www.ieee8 02. org /21 / Iyengar, J., ... interval I 1 =[0, 11 .2[ dB. 2. ( 1 2 ,64QAM) corresponds to the SNR interval I 2 =[11 .2, 22 .7] dB. 3. ( 3 4 ,64QAM) corresponds to the SNR interval I 3 = ]22 .7, +∞[ dB. Note that the ( 3 4 ,64QAM) modulation ... Performance Investigation 6 13 User position/behavior WiFi only WiMAX only Smooth Tx/Qu 1 Still, near the PoA 18. 53 12. 76 32 . 37 2 Still, 30 m far from the PoA 3. 81 12. 76 16.40 3 Moving away at 1 m/s,...

Ngày tải lên: 21/06/2014, 05:20

... 15 20 25 30 35 40 0 50 100 150 20 0 25 0 30 0 35 0 400 Number of SSs (N) Variance of packet delay (ms ^2) analysis W=8 simulation W=8 analysis W=16 simulation W=16 analysis W= 32 simulation W= 32 (b) ... W=8 analysis W=16 simulation W=16 analysis W= 32 simulation W= 32 (b) Mean services time of REQs 0 5 10 15 20 25 30 35 40 0 5 10 15 20 25 30 Number of SSs (N) Mean packet delay (ms) analysis ... W=8 analysis W=16 simulation W=16 analysis W= 32 simulation W= 32 (d) Variance of packet delay 0 5 10 15 20 25 30 35 40 0 .2 0 .25 0 .3 0 .35 0.4 0.45 0.5 0.55 0.6 0.65 Number of SSs (N) Traffic load ( ρ) analysis...

Ngày tải lên: 21/06/2014, 05:20