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McKeown Group OpenFlow v1.0Weekly Status Report
Week8/2011(02/23 Wed —03/01 Tue)
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Status UpdateWIRED NETWORK• Bigswitch managed network is a bit slow if we increase users• SNAC managed network became stable after restarting the
NetFPGA switch
DEMO NETWORK• Still debugging the missing links because of FV upgrade to 0.7
WIRELESS• Still trying to remove other spikes in RTT• Testing NEC Helios controller
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Performance Summary
WIRED NETWORK• Good performance for SNAC managed network
WIRELESS NETWORK• Spikes in flow setup time and RTT
– Trying to reduce further
Performance (WIRED)
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Network Configuration
hpsw3hpsw3
netfpga1netfpga1
indigo1indigo1Masa
Paul
Rob
Dan
• Adam• Peyman• Brandon/David E/Glen• Lots of power meters
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Controller (at openflow7.stanford.edu) SNAC (v1.0 wire compat)
necsw6necsw6
Non-OF uplink
hpsw1hpsw1
Srini
Controller @opeflow-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
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Flow Statistics per switch
Switch Avg # Flows Avg Flow Setup Rate [flow/sec]
necsw6 98 7.3
indigo1 85.9 7.8
netfpga1 65.3 2.2
nonof NA NA
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Flow statistics (# of active flows)
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Flow stats not available on hpsw3/hpsw1 (BigSwitch does not provide it)
Flow statistics (flow injection rate)
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Flow stats not available on hpsw3/hpsw1 (BigSwitch does not provide it)
CPU usage
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Total Traffic Volume per switch
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Not available for indigo1 nor netfpga1
Network Performance
• Flow setup delay• E2E RTT• wget delay
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Flow Setup Delay
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Flow Setup Delay
switch 10ms 100ms 1000msnecsw6 54.7342 97.4138 98.8056Indigo1 11.6331 96.5132 98.7021netfpga1 92.4287 97.8204 98.9754Nonof 99.7424 99.9047 100.0
Percentage of time flow setup delay is less than the target value
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RTT E2E RTT from each switch
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RTT
switch 1ms 10ms 100msnecsw6 97.6197 99.3547 99.8521indigo1 97.621 99.0727 99.8136netfpga1 96.7115 98.3037 99.4665nonof 98.5789 99.9784 99.9861
Percentage of RTT is less than the target value
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wget delay
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Performance (WIRELESS)
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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
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Flow Statistics per switch
Switch Avg # Flows Avg Flow Setup Rate [flow/sec]
necsw4 94.5 44.7necsw1 56 7.3
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Flow statistics (# of active flows)
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Flow statistics (flow injection rate)
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Switch CPU usage
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Total Traffic Volume per switch
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Network Performance
• Flow setup delay• E2E RTT• wget delay
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Flow Setup Delay
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Flow Setup Delay
switch 10ms 100ms 1000msnecsw4 42.2925 90.2874 99.1403necsw1 1.217 97.9274 99.9008
Percentage of time flow setup delay is less than the target value
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RTT E2E RTT from each switch
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RTT
switch 1ms 10ms 100msnecsw4 98.4151 98.9303 99.6843necsw1 98.2794 98.8609 99.6892
Percentage of RTT is less than the target value
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wget delay
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