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Cloud-based Virtualization for Test AutomationVikram Hosakote, Sr. Software Developer

Cisco Systems

NOSTG Boxborough MA

February 24, 2012

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• Data compression• Virtualization• Data storage• Data caching• Continuous Integration and Deployment

Optimization techniques for test automation

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Data compression

• Lossless data compression mechanisms to copy images faster to /auto/bxb-golden/earms/wait_dir.

• Images become smaller.

• Copying becomes two times (or even three times) faster.

• More jobs per testbed per day.

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Virtualization

• VMs on UCS, VMVare, Aurora, CLS thin clients, Amazon Web Services

• eARMS logs older than six months are lost. Store them on the cloud.

• Each job has [clean logs + ATS logs + script logs]. Use classification algorithms to separate the useful logs from the useless.

Data storage

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Data caching• vhosakot-sb150:882> traceroute earms-app-test.cisco.com

bxb23-wan-gw1-ten3-2.cisco.com (161.44.85.133) 12 ms 1 ms 1 ms

nycidc-wan-gw2-pos2-2-0.cisco.com (161.44.85.217) 7 ms 7 ms 6 ms

chiidc-rbb-gw1-ten2-3.cisco.com (10.112.3.190) 26 ms 26 ms 26 ms

denidc-rbb-gw2-ten2-2.cisco.com (10.112.3.161) 46 ms 46 ms 46 ms

sjc5-j09-dci05n-gw1-por2.cisco.com (171.71.243.86) 78 ms 80 ms 77 ms

earms-app-test.cisco.com (171.70.78.41) 78 ms 78 ms 78 ms Invisible

• Implement local caching on the browser using cookies and temp files.

• Don’t ask the server something you already know.

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Disadvantages• Money – External cloud providers like Microsoft Azure, Amazon Web Services,

Google Cloud App charge for every byte.

• Cisco corporate data policies for external clouds.

• Data redundancy.

• Data Security. No insurance.

• Complex architecture.

• Clouds do fail. Example – MegaUploads.

• Java and Python expertise.

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Protocols used to network clouds

• BFD – subsecond IGP reconvergence

• IP-FRR

• MPLS-TE-FRR

• RSTP

• WAN protocols

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Thank you.