SDN Dev Group, Week 2 Aaron GemberAditya Akella University of Wisconsin-Madison 1 Wisconsin Testbed; Design Considerations.

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Presentation transcript:

SDN Dev Group, Week 2 Aaron GemberAditya Akella University of Wisconsin-Madison 1 Wisconsin Testbed; Design Considerations

Development Progress High-level design Problems encountered Lessons learned Experience with specific controllers 2

Wisconsin Testbed 3

Testbed Components Switches – 3x HP ProCurve 5400 – 4x HP ProCurve 6600 Servers – 15x Dell PowerEdge R210 (Quad-core Intel Xeon X3430, 4GB RAM, 2x 1Gbps) – 5x Dell Precision T5500 (Dual quad-core Intel Xeon E5507, 12GB RAM, 1x 1Gbps) – 5x HP dc5800 (Core 2 Duo, 2GB RAM, 2x 1Gbps) 4

Testbed Topology 5 CS 4 th Floor East 4300E ProCurve 6600 CS 4 th Floor East 4300E ProCurve 6600 CS 4 th Floor West 4300F ProCurve 6600 CS 4 th Floor West 4300F ProCurve 6600 CS 6 th Floor West 6300E ProCurve 5400 CS 6 th Floor West 6300E ProCurve 5400 CS 6 th Floor West 6300F ProCurve 5400 CS 6 th Floor West 6300F ProCurve 5400 CS 3360 (WINGS) WINGS ProCurve 5400 CS 3360 (WINGS) WINGS ProCurve 5400 CS 3390 (WAIL) WAIL ProCurve 6600 CS 3390 (WAIL) WAIL ProCurve 6600 CS 3390 (WAIL) WAILTWO ProCurve 6600 CS 3390 (WAIL) WAILTWO ProCurve 6600 CS Network Internet

Federation of network testbeds: OpenFlow (campuses, NLR, I2), Emulab, PlanetLab, etc. Live resource map: GENI software stack: FlowVisor, FOAM Experimenters create a slice + slivers at each site to reserve the resources they want 6

Testbed for SDN Dev Group 7 CS 3360 (WINGS) WINGS ProCurve 5400 CS 3360 (WINGS) WINGS ProCurve eth1.2** thrush lyrebird vulture wings-openflow-1 Controller

Accessing the testbed SSH to wings-openflow-1.wail.wisc.edu (from anywhere on the Internet) Username: CS username; Password: w3lcom3 Reset your password by running passwd Home directory is shared using NFS Local storage on each machine at /scratch SSH to vulture, thrush, and lyrebird to run commands on these end-hosts 8

“Slices” for SDN Dev Group Should reserve resources in FOAM/FlowVisor using GENI Rspecs Statically allocated VLANs (201 – 210) Controller should run on wings-openflow-1 and listen on port 102** Generate traffic on vulture, lyrebird, and thrush on interface eth1.2** using IP addresses 10.2.**.0/32 9

Design Considerations Granularity of flow entries Static vs. dynamic flow installation Switch flow table size limits Policy input Code re-use/modular design 10

SDN Dev Group Week 3 Preparation – Use UW-Madison OpenFlow testbed – Write an SDN application that relies on some supporting modules from the controller (e.g., topology, spanning tree, etc.) Meeting topics – TBD 11