1.
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
07/10/2015 1NOF 2015

2.
Outline
• Intro & Motivation
• VIFIB Distributed Clouds
• RINA: Recursive InterNetwork Architecture
• SFR: Scalable Forwarding with RINA
• Simulation Results
• Conclusion
07/10/2015 2NOF 2015

3.
Generated from https://tagul.com
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
07/10/2015 3NOF 2015

4.
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)
07/10/2015 NOF 2015 4
Source: http://www.vifib.com/
Source: http://www.vifib.com/

5.
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
07/10/2015 NOF 2015 5
Source: http://www.vifib.com/

6.
RINA: Recursive InterNetwork
Architecture
07/10/2015 NOF 2015 6
• 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

7.
GroupS
Group1
GroupD
GroupN-1Group2
InterGroup1_NInterGroup1_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
07/10/2015 7NOF 2015

8.
SFR: DIF Architecture
IGroup2_N DIF GroupD DIFGroupS 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
07/10/2015 8NOF 2015

9.
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 9NOF 2015
• RINASim Simulator: Omnet++
based
• Medium scale distributed clouds
scenario
• Performance indicator:
– Forwarding table size

10.
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
07/10/2015 10NOF 2015

11.
Variation of the PDU forwarding table size with regards the
simulation time. Dynamic Tenant Cloud DIF management
Simulation Results (2/2)
07/10/2015 11NOF 2015

12.
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
07/10/2015 12NOF 2015

13.
Thank you for your
attention!
Questions?
07/10/2015 NOF 2015 13