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Podcast: Packet Pushers - Weekly Show
Episode:

Show 279: Real-World OpenStack Networking
Category: Technology
Duration: 00:00:00
Publish Date: 2016-03-11 13:53:04
Description:

Today’s Weekly Show is all about networking in OpenStack, the open-source, private-cloud platform.

Greg and Ethan’s guests are Michael Damkot, a long-time network engineer and member of an OpenStack team at a very large SaaS company; and Robert Starmer, a network engineer and technology consultant who has been involved with OpenStack almost since its inception.

You can follow Michael on Twitter at @mdamkot. Robert Starmer is on Twitter at @rstarmer, and you can check out his Web site Kumulus Technologies and his YouTube channel 5 Minutes Of Cloud.

The conversation starts with OpenStack’s structure as an open source project, and the upsides and downsides of the way it’s organized, vendor roles within the project, and other organizational issues.

Then the discussion covers the major building blocks of OpenStack, and drills into the Neutron element. They examine how OpenStack networking capabilities have evolved, and in some cases grown more complex. The Neutron API structure lets you plug in both open source and commercial components.

The conversation also covers L2 and L3 capabilities, virtual switches, load balancing, firewalling, overlays, IP addressing, and more.

If you’re looking for a better understanding of OpenStack networking, this is a conversation you want to hear.

Sponsor: Talari

Talari creates a THINKING SD-WAN that makes the network smart and responsive, adapting in real time to changing conditions. With Talari, mission critical apps like VoIP and VDI take priority and always deliver while less time-sensitive traffic your file backup, for example fall in line. Talari s the proven, leading SD-WAN solution that started in the SD-WAN space before it was labeled as such. Check them out at Talari.com.

Sponsor: ThousandEyes

ThousandEyes delivers visibility into every network your organization relies on from your data center to the cloud. You can quickly and precisely pinpoint the root cause of network issues wherever they occur and then share your insights with your vendors and customers. Sign up for an account at ThousandEyes.com/packetpushers to monitor 3 locations for free, and choose a ThousandEyes t-shirt.

Discussion Topics:

  • L3 is separate, but not really, from L2?  Routing is a second class citizen
  • Is it really routing, or is it really NAT/FW functionality?
  • Is OpenStack networking SDN?
  • What is this metadata thing, and why is it part of the network service (DHCP, Metadata, router/NAT engine interactions)?
  • What is the impact of tunneling to overall system performance (or do I get any benefit of attaching my servers at 10G if there s all this extra software encapsulation going on)?
  • What do I need to do to make all of this resilient (and is that even important)?
    1. Routing/NAT
    2. IPAM/DHCP
    3. Metadata

The post Show 279: Real-World OpenStack Networking appeared first on Packet Pushers.
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