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Meeting Minutes: May 3, 2018
10 am to 11:30 am PDT (GMT - 7), Barefoot Networks, 4750 Patrick Henry Dr, Santa Clara, CA 95054
Alibaba: Heidi Ou
AT&T: Shyam Parekh, Tom Tofigh
Barefoot Networks: Jeongkeun Lee, Mickey Spiegel, Roberto Mari
Cisco Systems: Mario Baldi, James Coole
Intel: Michael Orr
IXIA: Chris Sommers
Mellanox: Barak Gafni
Netsia: Jeffrey Van, Madhu Kashyap
Netcope Technologies: Albert Ross
ONF: Carmelo Cascone
Postech: Jonghwan Hyun
VMware: Mukesh Hira
The INT data plane specification only contains reference code snippets for a transit switch. JK Lee from Barefoot Networks and Jonghwan Hyun from Postech and ONF are working together on more elaborate reference code that can be used in an end-to-end system. Folks interested in contributing to this effort are encouraged to express interest over the mailing list, or reach out to JK and/or Jonghwan.
Mukesh Hira from VMware presented use of INT for performing congestion-aware network load balancing in data center networks. This is an example of using INT for closed loop systems, in contrast to monitoring/troubleshooting use-cases discussed so far in the working group. Slides can be found here
Michael Orr from Intel presented his experience from Openflow standardization process, and a proposal for carrying INT metadata using a flexible frame format that
- Allows for carrying any metadata, including vendor/operator proprietary metadata
- Uses an owner ID in INT headers, with owner ID to metadata semantic mapping known to INT monitor via out-of-band mechanism
- Allows for metadata to be introduced on an "experimental" basis before being widely adopted into the standard
Working group members felt that the second goal above could be addressed by previous discussions related to out of band mechanism for metadata semantics. A concrete proposal on this had been deferred earlier, should be presented in one of the subsequent meetings.
Regarding the other aspects of Michael's proposal, that of supporting sets of metadata definitions based on owner ID and allowing experimental metadata, working group members would give this more thought and revisit this at a subsequent meeting.
Michael's slides can be found here
- Next working group meeting will be on May 17, 2018. Agenda and location to be announced closer to the date.