SFR: Scalable Forwarding with RINA for Distributed Clouds

Fatma Hrizi, Anis Laouiti and Hakima Chaouchi Telecom SudParis, France

6th International Conference NOF 2015,

MONTREAL, CANADA, SEPTEMBER 30, 2015

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Outline

• Intro & Motivation • VIFIB Distributed Clouds • RINA: Recursive InterNetwork Architecture • SFR: Scalable Forwarding with RINA • Simulation Results • Conclusion

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Intro & Motivation

• Cloud Computing – Fast Emergence

• Research, industries and standardizations – Enables ubiquitous and on-demand access to

shared resources – Large scale applications become feasible

• Big data, HPC.. – Single central point

Scalability & Availability issues

• Distributed Clouds – Decentralized management – Resources distributed in several geo area – “Volunteer” clouds

• An example: VIFIB

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VIFIB Distributed Clouds

• VIFIB: Resilient Computing – No data center architecture:

• Micro servers located in homes, offices.. • Distributed resources More Availability: 99.99%!

– Master/Slave architecture – Resiliency

• Data is encrypted and replicated in different locations • Overlay Network of Open VPN tunnels (re6st)

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Source: http://www.vifib.com/

Source: http://www.vifib.com/

Re6st: Resilient Overlay Networking System

• Re6st – Mesh network of Open VPN

• Flat and random graph – Babel Protocol used to calculate best routes – Fast recovery!

• Issues with Re6st – Security issues

• Bad routes flooding – Scalability issues

• Flat topology does not scale • Tunnels might consume extensive resources

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Source: http://www.vifib.com/

RINA: Recursive InterNetwork Architecture

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• Inter-Process Communication (IPC) model • Unlike TCP/IP, one single layer

• that could be repeated recursively

• Clean separation between mechanism and policy • Divide and Conquer

• Scalability

GroupS

Group1 GroupD

GroupN-1 Group2

InterGroup1_N InterGroup1_1

InterGroup1_2 InterGroup1_N-1

InterGroup2_N

• The distributed clouds is divided into groups • Group leaders are created to interconnect nodes from

different groups and to form the inter groups • To support scalability, multiple levels could be created

SFR: Scalable Forwarding with RINA

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SFR: DIF Architecture

IGroup2_N DIF GroupD DIF GroupS DIF IGroup 1_1 DIF

VIFIB nodeA VIFIB nodeF

VIFIB nodeC VIFIB nodeE

VIFIB nodeB VIFIB nodeD

Tenant Cloud DIF

IGroup 1_N DIF

DAP 1 DAP N

Tenant App DIF

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Performance Evaluation Scenario

Parameter Value Number of VIFIB nodes

120

Number of regions 4

Number of VIFIB nodes per region

30

Application Ping

Packet Size 1500 Bytes

Ping Starts at 140s

Ping rate 5

Simulation Time 300s for each run 07/10/2015 9 NOF 2015

• RINASim Simulator: Omnet++ based

• Medium scale distributed clouds scenario

• Performance indicator: – Forwarding table size

Simulation Results (1/2)

Smaller PDU Forwarding Table!

Variation of PDU forwarding table size / simulation time Comparison between SFR and simple distance vector routing protocol

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Variation of the PDU forwarding table size with regards the simulation time. Dynamic Tenant Cloud DIF management

Simulation Results (2/2)

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Conclusion

• SFR: new and generic routing architecture for distributed clouds – Hierarchical DIF architecture

• SFR achieves better results compared to current distributed clouds networking solutions – The forwarding table size is drastically decreased

• In future works, we plan – Further evaluate the assets of applying RINA to distributed clouds

• Consider more evaluation metrics: latency, throughput.. – Deploy SFR within VIFIB infrastructure to compare it to re6st

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Thank you for your attention!

Questions?

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