Dan Li Tsinghua University Research Track Session Part 3 ONS2015: http://bit.ly/ons2015sd ONS Inspire! Webinars: http://bit.ly/oiw-sd Watch the talk (video) on ONS Content Archives: http://bit.ly/ons-archives-sd

3. SODA: Enhancing the Data Plane
Functionality of Software Defined
Networking
Dan Li, Tsinghua University
Yirong Yu, Tsinghua University
Kang Li, Kaiwang Technology
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4. OpenFlow Protocol
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Global Network View
Network Virtualization
Packet
Forwarding
Packet
Forwarding
Packet
Forwarding
Packet
Forwarding
Abstract Network View
Control
Programs
Control
Programs
Control
Programs
firewall.c
…
if( pkt->tcp->dport == 22)
dropPacket(pkt);
…
Packet
Forwarding
Network OS 1.<Match, Action>
2.<Match, Action>
3.<Match, Action>
4.<Match, Action>
5.<Match, Action>
6.…
7.…
1.<Match, Action>
2.<Match, Action>
3.<Match, Action>
4.<Match, Action>
5.<Match, Action>
6.…
7.…
1.<Match, Action>
2.<Match, Action>
3.<Match, Action>
4.<Match, Action>
5.<Match, Action>
6.…
7.…
1.<Match, Action>
2.<Match, Action>
3.<Match, Action>
4.<Match, Action>
5.<Match, Action>
6.…
7.…1.<Match, Action>
2.<Match, Action>
3.<Match, Action>
4.<Match, Action>
5.<Match, Action>
6.…
7.…

5. Data Plane of OpenFlow
 OpenFlow’s basic data functionality
 Flexibly setting the matching keys from the fields in the
packet header
 Flexibly choosing the routing paths for flows
 Group table allows limited more operations
 Multicast, broadcast, multipath routing
 What if more advanced requirements?
 User-defined packet formats
 More intelligent packet forwarding behavior
 Deep packet investigation for security
 In-network processing for big data applications
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6. SODA: Enhancing SDN Data Plane
 User-defined protocols
 Defining user-customizable byte fields (not only standard
protocol fields) as matching keys
 Advanced packet forwarding behavior
 Fast rerouting, traffic engineering
 Payload aware processing
 Processing the whole packet, not only packet header
 Stateful processing
 Statefully processing a sequence of packets, not only a single
packet
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7. SODA Implementation
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8. SODA Demo
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9. Comparing SODA with Other
Network Systems
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System
Programming
Environment
Programmability Performance
SODA (SDN)
Network-wide programming,
software programming
User-defined protocols,
payload processing,
stateful processing
>50Gbps (with
GPU)
OpenFlow (SDN)
Network-wide programming,
software programming
Flexible routing paths 100s Gbps
PoF switch (SDN) Network-wide programming User-defined protocols
Regular routers
Device-level programming,
simple configuration
Simple configuration
100s Gbps -
Tbps
Click
Device-level programming,
software programming
Customizable
configuration
Several Gbps
NetFPGA
Device-level programming,
hardware programming
Limited by hardware
logic
4 10G ports

10. Thanks!
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