SlideShare a Scribd company logo
Stratum's new capabilities:
optical transport support
for Cassini chassis
Leonid Khedyk
CTO
PLVision is an SDN software developer
• A specialized provider of software engineering services, specializing in SDN,
NFV, Embedded Systems and Industrial IoT
• Profound experience with merchant switch silicons (Broadcom XGS, DNX
families, Intel, Barefoot, Mellanox, Marvell/Cavium)
• 12 years in network software development, landing of commercial and open
source NOSes on merchant silicons up to the level of integration with SDN
controllers.
2
Disaggregating Transponders from OLS/ROADMS
Business Benefits
• Rapid adoption of innovation in terminal equipment
• 2 yearsTX lifespan vs. 15 years for OLS/ROADMS
• Enablevendors to innovate:speed, reach, QoT, …
• Let operatorsreap benefits through simple bookending
• Rapid introduction of new services in production network
3
Intro: ODTN Use Case
ODTN high-level picture (legacy problem)
ODTN high-level picture (solution)
CASSINI platform (hardware)
• White Box packet/optical transponder
• Open design contributed to OCP
• Broadcom Tomahawk+ ASIC(3.2T)
• 100Gbit/s QSFP28 x16
• 200Gbit/s CFP2-ACO x8
• ACO/DCO coherent DSP and optical transceivers
CASSINI platform (software)
CASSINI configuration: user perspective
New gNMI paths for OpenConfignodesdefined @ openconfig-terminal-device.yang
CASSINI configuration: internals
kernel
hardware
user
Stratumswitchagent
P4 Runtime gNMI gNOI
Switch Interface
Table
Manager
Node/Chip
Manager
Chassis
Manager
Platform
Manager
Remote or Local Controller(s)
Switch SDK Platform API
Switch Chip Drivers Platform Drivers
Switch Chip(s) Peripheral(s)
TAI API
Transponder Lib
Optical line(s)
Chip Abstraction Managers
E.g. ACL, L2, L3, Packet
I/O, Tunnel
CASSINI configuration:operations perspective
Summary
Mixture of open projects/products:
CASSINI
Stratum
OpenConfig
TAI
Provides a mixtureof traditionalEthernet
networkingwith wide area optical transport
in a single solution.
How to Engage with Community
• Stratum
• Web: https://www.opennetworking.org/stratum/
• Wiki: https://wiki.opennetworking.org/display/COM/Stratum+Wiki+Home+Page
• ODTN
• Web: https://www.opennetworking.org/odtn/
• Wiki: https://wiki.onosproject.org/display/ODTN/ODTN
Thank You!
Questions?
leonid.khedyk@plvision.eu

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Stratum Optical Transport Support by Leonid Khedyk at ONF Connect 2019

  • 1. Stratum's new capabilities: optical transport support for Cassini chassis Leonid Khedyk CTO
  • 2. PLVision is an SDN software developer • A specialized provider of software engineering services, specializing in SDN, NFV, Embedded Systems and Industrial IoT • Profound experience with merchant switch silicons (Broadcom XGS, DNX families, Intel, Barefoot, Mellanox, Marvell/Cavium) • 12 years in network software development, landing of commercial and open source NOSes on merchant silicons up to the level of integration with SDN controllers. 2
  • 3. Disaggregating Transponders from OLS/ROADMS Business Benefits • Rapid adoption of innovation in terminal equipment • 2 yearsTX lifespan vs. 15 years for OLS/ROADMS • Enablevendors to innovate:speed, reach, QoT, … • Let operatorsreap benefits through simple bookending • Rapid introduction of new services in production network 3
  • 5. ODTN high-level picture (legacy problem)
  • 7. CASSINI platform (hardware) • White Box packet/optical transponder • Open design contributed to OCP • Broadcom Tomahawk+ ASIC(3.2T) • 100Gbit/s QSFP28 x16 • 200Gbit/s CFP2-ACO x8 • ACO/DCO coherent DSP and optical transceivers
  • 9. CASSINI configuration: user perspective New gNMI paths for OpenConfignodesdefined @ openconfig-terminal-device.yang
  • 10. CASSINI configuration: internals kernel hardware user Stratumswitchagent P4 Runtime gNMI gNOI Switch Interface Table Manager Node/Chip Manager Chassis Manager Platform Manager Remote or Local Controller(s) Switch SDK Platform API Switch Chip Drivers Platform Drivers Switch Chip(s) Peripheral(s) TAI API Transponder Lib Optical line(s) Chip Abstraction Managers E.g. ACL, L2, L3, Packet I/O, Tunnel
  • 12. Summary Mixture of open projects/products: CASSINI Stratum OpenConfig TAI Provides a mixtureof traditionalEthernet networkingwith wide area optical transport in a single solution.
  • 13. How to Engage with Community • Stratum • Web: https://www.opennetworking.org/stratum/ • Wiki: https://wiki.opennetworking.org/display/COM/Stratum+Wiki+Home+Page • ODTN • Web: https://www.opennetworking.org/odtn/ • Wiki: https://wiki.onosproject.org/display/ODTN/ODTN