McKeown Group OpenFlow v1.0Weekly Status Report

Week2/2011(01/12 Wed—01/18 Tue)

1

Status Update

WIRED• Pkt-in loop in NEC (Not a NEC bug)

– Resolved. Updated SNAC and NOX

DEMO NETWORK• Removed ofwifi overlap on necsw• Moved hpsw4 in place of necsw3

– Problems with aggregation demo. Still debugging.

2

Status UpdateWIRELESS• Ofwifi went down several times

– New FV is still unstable in ofwifi • Crashed 2 times• At some point, flow setup time gradually gets too large and

requires restart

– Analysis suggests flow setup time in “SNAC” increase when FV exists

– Reported to Rob S for fix

• Two APs are installed in CIS/CISX

3

Performance SummaryWIRED NETWORK• Spikes in RTT

– Non-OpenFlow network also has this spike

Performance SummaryWIRELESS NETWORK• Unstable flow setup time• Spikes in RTT

– Both are due to slow-down of FV

Performance (WIRED)

6

Network Configuration

hpsw3hpsw3

netfpga1netfpga1

indigo1indigo1Masa

Paul

Srini/Tatsuya/Rob

Dan

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

We’ll use this color code for the switch

7

Controller (at openflow5.stanford.edu) SNAC (v1.0 wire compat)

necsw6necsw6

Non-OF uplink

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

8

Flow Statistics per switch

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

necsw6 0.1 64.2hpsw3 160.7 7.9indigo1 66.4 7.1netfpga1 68 2.4nonof - -

9

Flow statistics (# of active flows)

10

Flow statistics (flow injection rate)

11

CPU usage

12

Total Traffic Volume per switch

13

Not available for indigo1 nor netfpga1

Network Performance

• Flow setup delay• E2E RTT• wget delay

14

Flow Setup Delay

15

Flow Setup Delay

switch 10ms 100ms 1000msnecsw5 48.3807 94.8953 99.7565necsw6 47.819 97.8348 99.6847Hpsw3 89.7395 99.2313 99.8616Indigo1 18.3405 98.3892 99.9068netfpga1 94.4205 99.6848 99.9933Nonof 48.3807 94.8953 99.7565

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

16

RTT E2E RTT from each switch

17

RTT

switch 1ms 10ms 100msnecsw5 99.9839 99.9857 99.9915necsw6 98.7974 99.9817 99.9885hpsw3 98.7566 99.9773 99.9843indigo1 98.6643 99.9831 99.985netfpga1 98.7555 99.9783 99.9861nonof 98.8098 99.9995 99.9997

Percentage of RTT is less than the target value

18

wget delay

19

Performance (WIRELESS)

20

Network Configuration (no change)

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

22

Flow Statistics per switch

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

necsw4 222.7 30.2

necsw1 77.8 4.5

23

Flow statistics (# of active flows)

24

Flow statistics (flow injection rate)

25

Switch CPU usage

26

Total Traffic Volume per switch

27

Network Performance

• Flow setup delay• E2E RTT• wget delay

28

Flow Setup Delay

29

Flow Setup Delay

switch 10ms 100ms 1000msnecsw4 26.8562 89.8172 98.8306

necsw1 37.6574 95.8749 99.1936

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

30

RTT E2E RTT from each switch

31

RTT

switch 1ms 10ms 100msnecsw4 99.4844 99.4998 99.5966

necsw1 99.4827 99.507 99.6211

Percentage of RTT is less than the target value

32

wget delay

33