Tony FordGnodal

Guest Speaker

Presentation

Gnodal Gnodal GS Series Lowest latency Highest density 10/40 GbE High scalability Low power Multi-path load-balancing Congestion free architecture,

dynamic re-routing

Scalable Ultra-low Latency

10/40 Gigabit Ethernet

http://www.gnodal.com

Booth #434

GS Series 1U Platforms

GS0072 - 72 x 10 GbEGS4008 - 40 x 10 GbE + 8 x 40GbEGS0018 -18 x 40 GbE

GS Series Platforms – Latest addition

GS0072 - Best of Interop Winner 2012 - Networks

Latency Testing Test bed – Single switch

GS4008

9 17 19 21 23

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33 35

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135

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4941

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5m fibre

5m fibre

5m fibre

5m fibre

5m fibre

5m fibre

5m fibre

5m fibre

Test Results Analysis – Single switch

Latency Testing Test bed – 2880 ports

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135

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4941

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5m fibre

5m fibre

5m fibre

5m fibre

9 17 19 21 23

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25 27 29 31

26 28 30 32

33 35

34 36

1

135

45 53 55 57 59

54 56 58 60

61 63 65 67

62 64 66 68

69 71

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4941

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5m fibre

5m fibre

5m fibre

5m fibre

73

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77

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81

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89

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101

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109

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113

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137

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141

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1

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5

1

9

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13

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17

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21

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25

6

29

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33

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37

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41

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53

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61

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65

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285

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145

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3m copper

3m copper

GS4008

GS0072

GS4008

Test Results Analysis - 2880 ports

Test Results Analysis

Measured Results72 ports - 150ns for single hop136 ports - 230ns for two hops (150ns first hop, 15ns of cable delay, 65ns for additional hop)720 ports - 310ns for three hops (150ns first hop, 2x 15ns cable delay, 2x 65ns additional hops)2880 ports - 440ns for five hops (150ns first hop, 2x 15ns cable delay, 4x 65ns additional hops)

64 128 256 512 1024 1280 15180

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Minimum Latency

GS4008

GS4008/GS4008

GS4008/GS0018/GS4008

GS4008/GS0072/GS4008

Packet size (B)

Lat

ency

(n

s)

Final Thoughts Be clear about test requirements

• Single switch – lowest latency

• Multi-chassis – highest scalability

Ultra-low latency switches require ultra-low latency test equipment• Application-space tests introduce artifacts

• Industry validation through recognized, trusted partners - Spirent

Speed-of-light benchmarks• Secondary effects can significantly effect performance

• Congestion, Load-balancing, Multi-chassis control plane

To hear how we address these issues visit our booth #434 or

http://www.gnodal.com

spirent.com/tws