McKeown Group OpenFlow v1.0Weekly Status Report

Week9/2011(03/02 Wed —03/08 Tue)

1

Status UpdateWIRED NETWORK• Indigo switch performing poorly. We need to debug it further

to see why performance became worse.• Stopped the NetFPGA switch for debugging reasons• Stopped Gates network tests for performance, STP, reorg

DEMO NETWORK• Still debugging the missing links because of FV upgrade to 0.7

WIRELESS• Testing NEC Helios controller• Necsw1 moved from SNAC. Hence no statistics available

2

Performance Summary

WIRED and WIRELESS NETWORK• Many spikes in RTT plot for SNAC managed network.

Need to add debugging to SNAC and verify.

Performance (WIRED)

4

Network Configuration

hpsw3hpsw3

netfpga1netfpga1

indigo1indigo1Masa

Rob

Dan

• Adam• Peyman• Brandon/David E/Glen• Lots of power meters

5

necsw6necsw6

Non-OF uplink

Controller @openflow-controller1BigSwitch Controller

Measured metrics 　 (no change)

• Switch Statistics– Active flows– Flow injection rate– CPU usage– Traffic volume

• Network Performance– Flow setup delay– E2E RTT– E2E packet loss rate– wget delay

6

Flow Statistics per switch

Switch Avg # Flows Avg Flow Setup Rate [flow/sec]

necsw6 108.7 7.1indigo1 90.1 9.7netfpga1 63.9 2.3nonof NA NA

7

Flow statistics (# of active flows)

8

Flow stats not available on hpsw3/hpsw1 (BigSwitch does not provide it)

Flow statistics (flow injection rate)

9

Flow stats not available on hpsw3/hpsw1 (BigSwitch does not provide it)

CPU usage

10

Total Traffic Volume per switch

11

Not available for indigo1 nor netfpga1

Network Performance

• Flow setup delay• E2E RTT• wget delay

12

Flow Setup Delay

13

Flow Setup Delay

switch 10ms 100ms 1000msnecsw6 53.1931 96.6565 99.2848Indigo1 12.7388 88.4743 95.9946netfpga1 95.4211 99.2061 99.8939Nonof 99.7246 99.9666 99.9917

Percentage of time flow setup delay is less than the target value

14

RTT E2E RTT from each switch

15

RTT

switch 1ms 10ms 100msnecsw6 98.1312 99.8149 99.8818indigo1 98.0876 99.6909 99.7708netfpga1 98.2111 99.819 99.8845nonof 98.4024 99.981 99.9871

Percentage of RTT is less than the target value

16

wget delay

17

Performance (WIRELESS)

18

Network Configuration (added necsw3)

necsw1necsw1

We’ll use this color code for the switchController (at openflow1.stanford.edu) SNAC (v1.0 wire compat) FlowVisor (currently removed due to slow flow setup time)

necsw4necsw4

Non-OF uplink

ap17ap17 ap18ap18 ap15ap15 ap16ap16 ap2ap2ap2ap2

ap2ap2ap2ap2

ap2ap2ap2ap2

24 tunnelingAPs

Measured metrics 　 (no change)

• Switch Statistics– Active flows– Flow injection rate– CPU usage– Traffic volume

• Network Performance– Flow setup delay– E2E RTT– E2E packet loss rate– wget delay

20

Flow Statistics per switch

Switch Avg # Flows Avg Flow Setup Rate [flow/sec]

necsw4 85.9 37.6

necsw1 0 0

21

Flow statistics (# of active flows)

22

Flow statistics (flow injection rate)

23

Switch CPU usage

24

Total Traffic Volume per switch

25

Network Performance

• Flow setup delay• E2E RTT• wget delay

26

Flow Setup Delay

27

Flow Setup Delay

switch 10ms 100ms 1000msnecsw4 41.772 84.0396 93.6869necsw1 16.6632 98.3524 99.9228

Percentage of time flow setup delay is less than the target value

28

RTT E2E RTT from each switch

29

RTT

switch 1ms 10ms 100msnecsw4 97.2863 97.5141 97.8739necsw1 97.0423 97.4667 98.1429

Percentage of RTT is less than the target value

30

wget delay

31