Re: Juniper and Caononical networking

      going to make their lives easier.  Eventually, but not without
      pain.  There is enough hype I'm delving heavily into this now.
      Most of this concept of defined network is "contracts", this group
      of hosts to that group of hosts on x services.  Hosts technically
      aren't in a broadcast domain anymore like they were, if you don't
      define the port-to-port flow as part of a contract policy, it
      doesn't happen.
      There in lies the problem - do you want to tell me every port
      connection every host needs explicitly for every application?  Now
      you have to, as well as your bandwidth and latency requirements. 
      Yes, really, and no "any" isn't good enough.
      As a network person, getting app people to define their networking
      requirements is about as impossible as pleasing them for the same
      reason.  Do you know how to read the results of "netstat -anp"?
      There is lots of open or open-ish hardware out there now to do
      some very neat things right now.  Openstack neutron to an
      opendaylight controller, running hardware switches in openflow
      mode (even cisco's can do openflow mode).  There are a ton of open
      and closed source SDN controllers, Cisco, Arista, Juniper, really
      everyone has one, or has partnerships for one.  VMware's NSX
      product is all about SDN flow controllers and distributed network
      features.
      As for hardware, commodity stuff is starting to be found cheap:
      Used, a thousand bucks, 48x 10gigabit ports, 4x 40gigabit ports,
      runs cumulus linux as the switch os.  Anything that can do
      OpenNetworking (ON) support, which Dell, Quanta, and a number of
      other generic "white-box" providers do this now.
      Now almost every switch is based on broadcom chips, even cisco
      doesn't do much for custom silicon asics anymore, so there is a
      baseline compatibility with a lot of hardware now being all
      broadcom reference chipsets like that Accton through big names. 
      Cisco and Arista's premier products are all broadcom based now,
      only difference is how they stitch the chips together internally,
      and the software.  Facebook did this with the same broadcom chips
      themselves as with every random chinese company cloning the same
      approach from the bigwigs like that Accton and undercutting price,
      why not Facebook themselves?
      The final frontier for data center networking of who you buy will
      be more about the software api, and how expressive they can convey
      network hardware and transport concepts to non-networking
      developers, including global site concepts, vpn, load-balancing,
      ssl termination, dns, and extensive routing/switching.  
      It doesn't remove complexity, it just makes it something else's
      problem, again.
      -mb
      On 07/25/2015 10:36 PM, Stephen Partington wrote:
          some of your takes would be.
          opensource networking infrastructure. but also the idea of a
          network that is even more modular...
            waves 'goodbye' to CISCO!
            new generation of Debian/UBUNTU GNU/Linux switches, coming
            with full sources for 
            Networking).
            world is buying U.S. closed software/hardware any longer.
            parts of Linux now run on ultra fast, freely programmable
            ASICs, being able to completely replace CISCO greenware.
            not only that. You now can run your UBUNTU "Snappy"
            containers directly on your switches. No more dedicated
            servers. Oops?
            'goodbye' to John Chambers at Levi’s Stadium on July 27 with
            some handful of 
            over: 
        -- 
          alarm clock, will prevent you from rolling over and going back
          to sleep after you hit the snooze button.
          Stephen

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