Interview with Dave Neary of Red Hat, concerning OPNFV and its
relationship with Open vSwitch.
Topics include:
- The difference between SFC and NFV.
- Importance performance constraints in NFV.
- Telcos and NFV, and how telcos approached OpenStack.
- How OPNFV bridges the telcos with OpenStack.
- What telcos care about, and a definition of “carrier grade.”
- Why carrier-grade features matter to everyone.
- Downsides and tradeoffs of carrier grade, such as cost and
complexity. - Role of Open vSwitch in OPNFV, and why DPDK is important to NFV.
- Importance of short 64-byte packets in NFV, e.g. for RTP (Real-time
Transport Protocol, for delivering audio and video across networks). - Relationship between SIP and RTP.
- Status of DPDK datapath in OVS for OPNFV (still under OpenStack review
and in early evaluation, not running in production much). - Importance of
vhost-user for NFV. - Why DPDK API/ABI changes cause trouble for Open vSwitch and downstream
users, and how symbol versioning in DPDK 2 and later helps. - Problems caused by irregularly scheduled Open vSwitch 2.4 and 2.5
releases. - Intent to branch OVS 2.6 in July.
- SFC for OPNFV demo with Tacker.
- Progress toward NSH support in OVS, and why OVS support for Geneve should
make it easier now. - Geneve standardization progress.
- OpenFlow matching for service chains.
- Potential pros and cons of NSH and Geneve for service chaining.
- VPP and OPNFV, and guesses at pros and cons of VPP versus OVS for
different application. - Why Dave is excited about OPNFV.
You can find Dave at @nearyd on
Twitter.
OVS Orbit is produced by Ben Pfaff. The
intro and bumper music is Electro
Deluxe, featuring Gurdonack, copyright 2014 by My Free Mickey. The
outro music is Girls like
you, featuring Thespinwires, copyright 2014 by Stefan Kartenberg.
All content is licensed under a Creative Commons Attribution 3.0
Unported (CC BY 3.0) license.
