[aklug] Software Defined Networking

[Mike Gonnason]

Back when I was looking at SD-WAN, I was looking at it from the PoV of a
cost effective MPLS replacement. The biggest issue I had with it was the
lack of visibility into what was happening and why. A lack of
logs/reporting to tell you why a given path was chosen, and a "path
history" for a given site.

You will see similar issues with Software Defined Datacenters,  like VMware
NSX or Juniper EVPN technologies when deployed in a leaf-spine
architecture. Say you have 4 spine switches and 10 racks, each with an
uplink to each spine; 40 uplinks total. Now you hear a rumor that a given
VM or customer is having packet loss. Which path is the traffic taking?
Where was the VM/customer at the time? Was there any network events
occurring?

The abstraction of the network can increase complexity significantly, while
also making it simple for provision for end users (VMs or customers).

I also got quotes for a managed service for SIP trunking via SD-WAN to
replace T1s. It could be a good deal for some situations where you have
access to multiple Internet providers.

 -Mike Gonnason


On Mon, Feb 13, 2017 at 11:01 PM Christopher Howard <
christopher.howard at qlfiles.net> wrote:

> I remember studying into it a few years ago when I was focusing
> especially on computer networking. I remember reading several articles
> and discovering everybody thought it was a great idea except Cisco. That
> was enough to make me a believer in SDN. :D
>
> On 02/13/2017 08:32 PM, Mike wrote:
> > My goal was to start discussion around this broad topic allowing anyone
> > to chime in and talk about the sorts of things they find interesting.
> >
> > So as far as interest goes, what parts of this broad topic are you
> > currently working in?
> >
> > Mike B.
> >
> > Quoting Mike Gonnason <gonnason at gmail.com>:
> >
> >> That is a very broad subject, what area are you interested in?
> >>
> >> -Mike Gonnason
> >> On Mon, Feb 13, 2017 at 8:28 PM Mike <alaskabarsalou at gmail.com> wrote:
> >>
> >>>
> >>> Now that things are up and running.....
> >>>
> >>> Anyone looking into Software Defined Networking at all?
> >>>
> >>> Mike B.
> >>> _______________________________________________
> >>> aklug mailing list
> >>> aklug at aklug.org
> >>> https://lists.aklug.org/mailman/listinfo/aklug
> >>>
> >
> >
> > _______________________________________________
> > aklug mailing list
> > aklug at aklug.org
> > https://lists.aklug.org/mailman/listinfo/aklug
>
> --
> https://qlfiles.net
> _______________________________________________
> aklug mailing list
> aklug at aklug.org
> https://lists.aklug.org/mailman/listinfo/aklug
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.aklug.org/pipermail/aklug/attachments/20170214/bf5c0400/attachment-0004.html>