Experimental Demonstration of OpenFlow Control of Packet

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Experimental Demonstration of OpenFlow Control of
Packet Circuit Switches
http//openflowswitch.org
Vinesh Gudla, Saurav Das, Anujit Shastri, Guru
Parulkar, Nick McKeown, Leonid Kazovsky Stanford
University Shinji Yamashita Fujitsu
Laboratories, Japan http//www.openflowswitch.org
/wk/index.php/PAC.C
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OpenFlow Switching
Controller
OpenFlow Switch
OpenFlow Protocol
SSL
Secure Channel
sw

• Add/delete flow entry
• Encapsulated packets
• Controller discovery

Flow Table
hw
A Flow is any combination of above fields
described in the Rule
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Flow Example
Routing
Controller
A Flow is the fundamental unit of manipulation
within a switch
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OpenFlow Testbed
GE to DWDM SFP convertor
192.168.3.10
192.168.3.12
192.168.3.15
Video Clients
Video Server
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An Open Platform for Gigabit-Rate Network
Switching and Routing. A complete network
hardware platform implemented with FPGA logic
www.netfpga.org
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WSS
Output
DEMUX
MUX
SW
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Input
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Control
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Lab Setup
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OpenFlow Testbed
GE to DWDM SFP convertor
192.168.3.10
192.168.3.12
192.168.3.15
Video Clients
Video Server
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Measurements
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/ Description of a physical port / struct
ofp_phy_port uint16_t port_no uint8_t
hw_addrOFP_ETH_ALEN / 000000000000 if
not an Ethernet port / uint8_t
nameOFP_MAX_PORT_NAME_LEN /
Null-terminated/ uint32_t config /
Bitmap of OFPPC_ flags / uint32_t state /
Bitmap of OFPPS_ flags / / Bitmaps of
OFPPF_ that describe features. All bits zeroed
if unsupported or unavailable. / uint32_t
curr / Current features. / uint32_t
advertised / Features being advertised by the
port. / uint32_t supported / Features
supported by the port. / uint32_t peer /
Features advertised by peer. /   uint16_t
supp_swtype / Bitmap of switching type OFPST_
flags / unit16_t peer_swtype / Bitmap of
peers switching type / uint32_t
supp_sw_tdm_gran / TDM switching granularity
OFPTSG_ flags uint32_t peer_sw_tdm_gran
/ Bitmap of peers switching granularity
/ unit64_t bandwidth1 / Bitmap of the
OFPCBL_ or OFPCBT_ flags / uint64_t
bandwidth2 / Same type as supp_bandwidth1
/ OFP_ASSERT(sizeof ( struct ofp_phy_cport)
80)
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Wavelength Switch Port
63 63 10 10 9 8 7 6 5 4 3 2 1 0
1913 1967 T L S O S C C/ L 1/5 F/ W
ITU grid Frequencies supported
63 10 10 9 8 7 6 5 4 3 2 1 0

ITU grid Frequencies currently being used
SONET/SDH Switch Port (OC-768 line rate)
63 56 55 32 31 26 25 20 8 7 6 5 4 3 2 1 0
7 2 8 6 8 0 . . . 1 9 2 1 4 4 9 6 4 8 0 5 7 6 3 8 4 1 9 2 0
63 54 53 44 43 34 33 24 23 16 15 8 7 0

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/Description of a cross-connection/ struct
ofp_connect uint16_t wildcards / identifies
which two ports to use below / uint16_t
num_components / identifies number of
cross-connect to be made uint8_t
pad4 / ie. num array elems/   uint16_t
in_port0 / OFPP_ ports real or virtual
/ uint16_t out_port0 / OFPP_ ports
real or virtual /   struct ofp_tdm_port
in_tport0 / description of TDM channel /
struct ofp_tdm_port out_tport0   struct
ofp_wave_port in_wport0 / description of
lambda channel / struct ofp_wave_port
out_wport0 OFP_ASSERT(sizeof(struct
ofp_connect) 8 )
/ Description of a TDM port / struct
ofp_tdm_port uint16_t tport uint16_t
tstart uint32_t tsignal
/Description of a wavelength port / struct
ofp_wave_port uint16_t wport uint8_t
pad6 uint64_t wavelength
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Example Application
Traffic Engineering
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Example Application
Traffic Engineering
..via Dynamic Automated Optical Bypass
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NOX
WSS (19)
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More Applications

• Integrated network recovery
• Service classification and Quality-of-service
• Identify aggregated packet flows classify them
• some take all packet paths, all circuit paths,
  or mix of circuit/packet paths
• some allocated different levels of bandwidths,
  some unallocated
• In - Datacenter
• variable bandwidth between clusters
• Unified slicing of network resources
• both packet circuit
• Integrated routing

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Summary

• OpenFlow is a large clean-slate program with
  many motivations and goals
• convergence of packet circuit networks is one
  such goal
• OpenFlow simplifies and unifies across layers
  and technologies
• packet and circuit infrastructures
• electronics and photonics
• and enables new capabilities in converged
  networks
• with real circuits or virtual circuits
• Next Demos
• larger demo of QoS capabilities enabled in
  converged networks
• business models for ISPs and TSPs enabled by
  unified virtualization